yiisoft /
yii2
Complex classes like QueryBuilder often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use QueryBuilder, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 28 | class QueryBuilder extends \yii\base\BaseObject |
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| 29 | { |
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| 30 | /** |
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| 31 | * The prefix for automatically generated query binding parameters. |
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| 32 | */ |
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| 33 | const PARAM_PREFIX = ':qp'; |
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| 34 | |||
| 35 | /** |
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| 36 | * @var Connection the database connection. |
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| 37 | */ |
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| 38 | public $db; |
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| 39 | /** |
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| 40 | * @var string the separator between different fragments of a SQL statement. |
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| 41 | * Defaults to an empty space. This is mainly used by [[build()]] when generating a SQL statement. |
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| 42 | */ |
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| 43 | public $separator = ' '; |
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| 44 | /** |
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| 45 | * @var array the abstract column types mapped to physical column types. |
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| 46 | * This is mainly used to support creating/modifying tables using DB-independent data type specifications. |
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| 47 | * Child classes should override this property to declare supported type mappings. |
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| 48 | */ |
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| 49 | public $typeMap = []; |
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| 50 | |||
| 51 | /** |
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| 52 | * @var array map of query condition to builder methods. |
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| 53 | * These methods are used by [[buildCondition]] to build SQL conditions from array syntax. |
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| 54 | * @deprecated since 2.0.14. Is not used, will be dropped in 2.1.0. |
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| 55 | */ |
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| 56 | protected $conditionBuilders = []; |
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| 57 | |||
| 58 | /** |
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| 59 | * @var array map of condition aliases to condition classes. For example: |
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| 60 | * |
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| 61 | * ```php |
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| 62 | * return [ |
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| 63 | * 'LIKE' => yii\db\condition\LikeCondition::class, |
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| 64 | * ]; |
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| 65 | * ``` |
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| 66 | * |
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| 67 | * This property is used by [[createConditionFromArray]] method. |
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| 68 | * See default condition classes list in [[defaultConditionClasses()]] method. |
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| 69 | * |
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| 70 | * In case you want to add custom conditions support, use the [[setConditionClasses()]] method. |
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| 71 | * |
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| 72 | * @see setConditonClasses() |
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| 73 | * @see defaultConditionClasses() |
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| 74 | * @since 2.0.14 |
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| 75 | */ |
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| 76 | protected $conditionClasses = []; |
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| 77 | |||
| 78 | /** |
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| 79 | * @var string[]|ExpressionBuilderInterface[] maps expression class to expression builder class. |
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| 80 | * For example: |
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| 81 | * |
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| 82 | * ```php |
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| 83 | * [ |
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| 84 | * yii\db\Expression::class => yii\db\ExpressionBuilder::class |
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| 85 | * ] |
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| 86 | * ``` |
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| 87 | * This property is mainly used by [[buildExpression()]] to build SQL expressions form expression objects. |
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| 88 | * See default values in [[defaultExpressionBuilders()]] method. |
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| 89 | * |
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| 90 | * |
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| 91 | * To override existing builders or add custom, use [[setExpressionBuilder()]] method. New items will be added |
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| 92 | * to the end of this array. |
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| 93 | * |
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| 94 | * To find a builder, [[buildExpression()]] will check the expression class for its exact presence in this map. |
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| 95 | * In case it is NOT present, the array will be iterated in reverse direction, checking whether the expression |
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| 96 | * extends the class, defined in this map. |
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| 97 | * |
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| 98 | * @see setExpressionBuilders() |
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| 99 | * @see defaultExpressionBuilders() |
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| 100 | * @since 2.0.14 |
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| 101 | */ |
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| 102 | protected $expressionBuilders = []; |
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| 103 | |||
| 104 | /** |
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| 105 | * Constructor. |
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| 106 | * @param Connection $connection the database connection. |
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| 107 | * @param array $config name-value pairs that will be used to initialize the object properties |
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| 108 | */ |
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| 109 | 1421 | public function __construct($connection, $config = []) |
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| 114 | |||
| 115 | /** |
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| 116 | * {@inheritdoc} |
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| 117 | */ |
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| 118 | 1421 | public function init() |
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| 125 | |||
| 126 | /** |
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| 127 | * Contains array of default condition classes. Extend this method, if you want to change |
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| 128 | * default condition classes for the query builder. See [[conditionClasses]] docs for details. |
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| 129 | * |
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| 130 | * @return array |
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| 131 | * @see conditionClasses |
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| 132 | * @since 2.0.14 |
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| 133 | */ |
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| 134 | 1421 | protected function defaultConditionClasses() |
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| 152 | |||
| 153 | /** |
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| 154 | * Contains array of default expression builders. Extend this method and override it, if you want to change |
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| 155 | * default expression builders for this query builder. See [[expressionBuilders]] docs for details. |
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| 156 | * |
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| 157 | * @return array |
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| 158 | * @see $expressionBuilders |
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| 159 | * @since 2.0.14 |
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| 160 | */ |
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| 161 | 1421 | protected function defaultExpressionBuilders() |
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| 162 | { |
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| 163 | return [ |
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| 164 | 1421 | 'yii\db\Query' => 'yii\db\QueryExpressionBuilder', |
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| 165 | 'yii\db\PdoValue' => 'yii\db\PdoValueBuilder', |
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| 166 | 'yii\db\Expression' => 'yii\db\ExpressionBuilder', |
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| 167 | 'yii\db\conditions\ConjunctionCondition' => 'yii\db\conditions\ConjunctionConditionBuilder', |
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| 168 | 'yii\db\conditions\NotCondition' => 'yii\db\conditions\NotConditionBuilder', |
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| 169 | 'yii\db\conditions\AndCondition' => 'yii\db\conditions\ConjunctionConditionBuilder', |
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| 170 | 'yii\db\conditions\OrCondition' => 'yii\db\conditions\ConjunctionConditionBuilder', |
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| 171 | 'yii\db\conditions\BetweenCondition' => 'yii\db\conditions\BetweenConditionBuilder', |
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| 172 | 'yii\db\conditions\InCondition' => 'yii\db\conditions\InConditionBuilder', |
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| 173 | 'yii\db\conditions\LikeCondition' => 'yii\db\conditions\LikeConditionBuilder', |
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| 174 | 'yii\db\conditions\ExistsCondition' => 'yii\db\conditions\ExistsConditionBuilder', |
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| 175 | 'yii\db\conditions\SimpleCondition' => 'yii\db\conditions\SimpleConditionBuilder', |
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| 176 | 'yii\db\conditions\HashCondition' => 'yii\db\conditions\HashConditionBuilder', |
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| 177 | 'yii\db\conditions\BetweenColumnsCondition' => 'yii\db\conditions\BetweenColumnsConditionBuilder', |
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| 178 | ]; |
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| 179 | } |
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| 180 | |||
| 181 | /** |
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| 182 | * Setter for [[expressionBuilders]] property. |
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| 183 | * |
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| 184 | * @param string[] $builders array of builder that should be merged with [[expressionBuilders]] |
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| 185 | * @since 2.0.14 |
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| 186 | * @see expressionBuilders |
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| 187 | */ |
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| 188 | public function setExpressionBuilders($builders) |
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| 189 | { |
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| 190 | $this->expressionBuilders = array_merge($this->expressionBuilders, $builders); |
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| 191 | } |
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| 192 | |||
| 193 | /** |
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| 194 | * Generates a SELECT SQL statement from a [[Query]] object. |
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| 195 | * |
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| 196 | * @param Query $query the [[Query]] object from which the SQL statement will be generated. |
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| 197 | * @param array $params the parameters to be bound to the generated SQL statement. These parameters will |
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| 198 | * be included in the result with the additional parameters generated during the query building process. |
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| 199 | * @return array the generated SQL statement (the first array element) and the corresponding |
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| 200 | * parameters to be bound to the SQL statement (the second array element). The parameters returned |
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| 201 | * include those provided in `$params`. |
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| 202 | */ |
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| 203 | 814 | public function build($query, $params = []) |
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| 204 | { |
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| 205 | 814 | $query = $query->prepare($this); |
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| 206 | |||
| 207 | 814 | $params = empty($params) ? $query->params : array_merge($params, $query->params); |
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| 208 | |||
| 209 | $clauses = [ |
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| 210 | 814 | $this->buildSelect($query->select, $params, $query->distinct, $query->selectOption), |
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| 211 | 814 | $this->buildFrom($query->from, $params), |
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| 212 | 814 | $this->buildJoin($query->join, $params), |
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| 213 | 814 | $this->buildWhere($query->where, $params), |
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| 214 | 814 | $this->buildGroupBy($query->groupBy), |
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| 215 | 814 | $this->buildHaving($query->having, $params), |
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| 216 | ]; |
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| 217 | |||
| 218 | 814 | $sql = implode($this->separator, array_filter($clauses)); |
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| 219 | 814 | $sql = $this->buildOrderByAndLimit($sql, $query->orderBy, $query->limit, $query->offset); |
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| 220 | |||
| 221 | 814 | if (!empty($query->orderBy)) { |
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| 222 | 108 | foreach ($query->orderBy as $expression) { |
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| 223 | 108 | if ($expression instanceof ExpressionInterface) { |
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| 224 | 108 | $this->buildExpression($expression, $params); |
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| 225 | } |
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| 226 | } |
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| 227 | } |
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| 228 | 814 | if (!empty($query->groupBy)) { |
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| 229 | 18 | foreach ($query->groupBy as $expression) { |
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| 230 | 18 | if ($expression instanceof ExpressionInterface) { |
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| 231 | 18 | $this->buildExpression($expression, $params); |
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| 232 | } |
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| 233 | } |
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| 234 | } |
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| 235 | |||
| 236 | 814 | $union = $this->buildUnion($query->union, $params); |
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| 237 | 814 | if ($union !== '') { |
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| 238 | 8 | $sql = "($sql){$this->separator}$union"; |
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| 239 | } |
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| 240 | |||
| 241 | 814 | return [$sql, $params]; |
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| 242 | } |
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| 243 | |||
| 244 | /** |
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| 245 | * Builds given $expression |
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| 246 | * |
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| 247 | * @param ExpressionInterface $expression the expression to be built |
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| 248 | * @param array $params the parameters to be bound to the generated SQL statement. These parameters will |
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| 249 | * be included in the result with the additional parameters generated during the expression building process. |
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| 250 | * @return string the SQL statement that will not be neither quoted nor encoded before passing to DBMS |
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| 251 | * @see ExpressionInterface |
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| 252 | * @see ExpressionBuilderInterface |
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| 253 | * @see expressionBuilders |
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| 254 | * @since 2.0.14 |
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| 255 | * @throws InvalidArgumentException when $expression building is not supported by this QueryBuilder. |
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| 256 | */ |
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| 257 | 1052 | public function buildExpression(ExpressionInterface $expression, &$params = []) |
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| 258 | { |
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| 259 | 1052 | $builder = $this->getExpressionBuilder($expression); |
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| 260 | |||
| 261 | 1052 | return $builder->build($expression, $params); |
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| 262 | } |
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| 263 | |||
| 264 | /** |
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| 265 | * Gets object of [[ExpressionBuilderInterface]] that is suitable for $expression. |
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| 266 | * Uses [[expressionBuilders]] array to find a suitable builder class. |
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| 267 | * |
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| 268 | * @param ExpressionInterface $expression |
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| 269 | * @return ExpressionBuilderInterface |
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| 270 | * @see expressionBuilders |
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| 271 | * @since 2.0.14 |
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| 272 | * @throws InvalidArgumentException when $expression building is not supported by this QueryBuilder. |
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| 273 | */ |
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| 274 | 1052 | public function getExpressionBuilder(ExpressionInterface $expression) |
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| 275 | { |
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| 276 | 1052 | $className = get_class($expression); |
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| 277 | |||
| 278 | 1052 | if (!isset($this->expressionBuilders[$className])) { |
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| 279 | 3 | foreach (array_reverse($this->expressionBuilders) as $expressionClass => $builderClass) { |
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| 280 | 3 | if (is_subclass_of($expression, $expressionClass)) { |
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| 281 | 3 | $this->expressionBuilders[$className] = $builderClass; |
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| 282 | 3 | break; |
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| 283 | } |
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| 284 | } |
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| 285 | |||
| 286 | 3 | if (!isset($this->expressionBuilders[$className])) { |
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| 287 | throw new InvalidArgumentException('Expression of class ' . $className . ' can not be built in ' . get_class($this)); |
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| 288 | } |
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| 289 | } |
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| 290 | |||
| 291 | 1052 | if ($this->expressionBuilders[$className] === __CLASS__) { |
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| 292 | return $this; |
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| 293 | } |
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| 294 | |||
| 295 | 1052 | if (!is_object($this->expressionBuilders[$className])) { |
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| 296 | 1008 | $this->expressionBuilders[$className] = new $this->expressionBuilders[$className]($this); |
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| 297 | } |
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| 298 | |||
| 299 | 1052 | return $this->expressionBuilders[$className]; |
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| 300 | } |
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| 301 | |||
| 302 | /** |
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| 303 | * Creates an INSERT SQL statement. |
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| 304 | * For example, |
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| 305 | * ```php |
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| 306 | * $sql = $queryBuilder->insert('user', [ |
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| 307 | * 'name' => 'Sam', |
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| 308 | * 'age' => 30, |
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| 309 | * ], $params); |
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| 310 | * ``` |
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| 311 | * The method will properly escape the table and column names. |
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| 312 | * |
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| 313 | * @param string $table the table that new rows will be inserted into. |
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| 314 | * @param array|Query $columns the column data (name => value) to be inserted into the table or instance |
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| 315 | * of [[yii\db\Query|Query]] to perform INSERT INTO ... SELECT SQL statement. |
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| 316 | * Passing of [[yii\db\Query|Query]] is available since version 2.0.11. |
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| 317 | * @param array $params the binding parameters that will be generated by this method. |
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| 318 | * They should be bound to the DB command later. |
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| 319 | * @return string the INSERT SQL |
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| 320 | */ |
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| 321 | 532 | public function insert($table, $columns, &$params) |
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| 322 | { |
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| 323 | 532 | list($names, $placeholders, $values, $params) = $this->prepareInsertValues($table, $columns, $params); |
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| 324 | 523 | return 'INSERT INTO ' . $this->db->quoteTableName($table) |
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| 325 | 523 | . (!empty($names) ? ' (' . implode(', ', $names) . ')' : '') |
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| 326 | 523 | . (!empty($placeholders) ? ' VALUES (' . implode(', ', $placeholders) . ')' : $values); |
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| 327 | } |
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| 328 | |||
| 329 | /** |
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| 330 | * Prepares a `VALUES` part for an `INSERT` SQL statement. |
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| 331 | * |
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| 332 | * @param string $table the table that new rows will be inserted into. |
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| 333 | * @param array|Query $columns the column data (name => value) to be inserted into the table or instance |
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| 334 | * of [[yii\db\Query|Query]] to perform INSERT INTO ... SELECT SQL statement. |
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| 335 | * @param array $params the binding parameters that will be generated by this method. |
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| 336 | * They should be bound to the DB command later. |
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| 337 | * @return array array of column names, placeholders, values and params. |
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| 338 | * @since 2.0.14 |
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| 339 | */ |
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| 340 | 546 | protected function prepareInsertValues($table, $columns, $params = []) |
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| 341 | { |
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| 342 | 546 | $schema = $this->db->getSchema(); |
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| 343 | 546 | $tableSchema = $schema->getTableSchema($table); |
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| 344 | 546 | $columnSchemas = $tableSchema !== null ? $tableSchema->columns : []; |
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| 345 | 546 | $names = []; |
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| 346 | 546 | $placeholders = []; |
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| 347 | 546 | $values = ' DEFAULT VALUES'; |
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| 348 | 546 | if ($columns instanceof Query) { |
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| 349 | 42 | list($names, $values, $params) = $this->prepareInsertSelectSubQuery($columns, $schema, $params); |
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| 350 | } else { |
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| 351 | 510 | foreach ($columns as $name => $value) { |
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| 352 | 506 | $names[] = $schema->quoteColumnName($name); |
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| 353 | 506 | $value = isset($columnSchemas[$name]) ? $columnSchemas[$name]->dbTypecast($value) : $value; |
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| 354 | |||
| 355 | 506 | if ($value instanceof ExpressionInterface) { |
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| 356 | 116 | $placeholders[] = $this->buildExpression($value, $params); |
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| 357 | } else { |
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| 358 | 506 | $placeholders[] = $this->bindParam($value, $params); |
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| 359 | } |
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| 360 | } |
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| 361 | } |
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| 362 | 537 | return [$names, $placeholders, $values, $params]; |
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| 363 | } |
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| 364 | |||
| 365 | /** |
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| 366 | * Prepare select-subquery and field names for INSERT INTO ... SELECT SQL statement. |
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| 367 | * |
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| 368 | * @param Query $columns Object, which represents select query. |
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| 369 | * @param \yii\db\Schema $schema Schema object to quote column name. |
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| 370 | * @param array $params the parameters to be bound to the generated SQL statement. These parameters will |
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| 371 | * be included in the result with the additional parameters generated during the query building process. |
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| 372 | * @return array array of column names, values and params. |
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| 373 | * @throws InvalidArgumentException if query's select does not contain named parameters only. |
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| 374 | * @since 2.0.11 |
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| 375 | */ |
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| 376 | 42 | protected function prepareInsertSelectSubQuery($columns, $schema, $params = []) |
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| 377 | { |
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| 378 | 42 | if (!is_array($columns->select) || empty($columns->select) || in_array('*', $columns->select)) { |
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| 379 | 9 | throw new InvalidArgumentException('Expected select query object with enumerated (named) parameters'); |
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| 380 | } |
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| 381 | |||
| 382 | 33 | list($values, $params) = $this->build($columns, $params); |
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| 383 | 33 | $names = []; |
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| 384 | 33 | $values = ' ' . $values; |
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| 385 | 33 | foreach ($columns->select as $title => $field) { |
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| 386 | 33 | if (is_string($title)) { |
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| 387 | 27 | $names[] = $schema->quoteColumnName($title); |
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| 388 | 24 | } elseif (preg_match('/^(.*?)(?i:\s+as\s+|\s+)([\w\-_\.]+)$/', $field, $matches)) { |
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| 389 | 3 | $names[] = $schema->quoteColumnName($matches[2]); |
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| 390 | } else { |
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| 391 | 33 | $names[] = $schema->quoteColumnName($field); |
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| 392 | } |
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| 393 | } |
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| 394 | |||
| 395 | 33 | return [$names, $values, $params]; |
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| 396 | } |
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| 397 | |||
| 398 | /** |
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| 399 | * Generates a batch INSERT SQL statement. |
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| 400 | * |
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| 401 | * For example, |
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| 402 | * |
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| 403 | * ```php |
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| 404 | * $sql = $queryBuilder->batchInsert('user', ['name', 'age'], [ |
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| 405 | * ['Tom', 30], |
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| 406 | * ['Jane', 20], |
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| 407 | * ['Linda', 25], |
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| 408 | * ]); |
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| 409 | * ``` |
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| 410 | * |
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| 411 | * Note that the values in each row must match the corresponding column names. |
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| 412 | * |
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| 413 | * The method will properly escape the column names, and quote the values to be inserted. |
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| 414 | * |
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| 415 | * @param string $table the table that new rows will be inserted into. |
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| 416 | * @param array $columns the column names |
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| 417 | * @param array|\Generator $rows the rows to be batch inserted into the table |
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| 418 | * @return string the batch INSERT SQL statement |
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| 419 | */ |
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| 420 | 26 | public function batchInsert($table, $columns, $rows) |
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| 421 | { |
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| 422 | 26 | if (empty($rows)) { |
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| 423 | 2 | return ''; |
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| 424 | } |
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| 425 | |||
| 426 | 25 | $schema = $this->db->getSchema(); |
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| 427 | 25 | if (($tableSchema = $schema->getTableSchema($table)) !== null) { |
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| 428 | 19 | $columnSchemas = $tableSchema->columns; |
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| 429 | } else { |
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| 430 | 6 | $columnSchemas = []; |
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| 431 | } |
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| 432 | |||
| 433 | 25 | $values = []; |
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| 434 | 25 | foreach ($rows as $row) { |
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| 435 | 23 | $vs = []; |
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| 436 | 23 | foreach ($row as $i => $value) { |
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| 437 | 23 | if (isset($columns[$i], $columnSchemas[$columns[$i]])) { |
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| 438 | 14 | $value = $columnSchemas[$columns[$i]]->dbTypecast($value); |
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| 439 | } |
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| 440 | 23 | if (is_string($value)) { |
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| 441 | 17 | $value = $schema->quoteValue($value); |
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| 442 | 13 | } elseif (is_float($value)) { |
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| 443 | // ensure type cast always has . as decimal separator in all locales |
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| 444 | 2 | $value = StringHelper::floatToString($value); |
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| 445 | 13 | } elseif ($value === false) { |
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| 446 | 4 | $value = 0; |
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| 447 | 13 | } elseif ($value === null) { |
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| 448 | 8 | $value = 'NULL'; |
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| 449 | } |
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| 450 | 23 | $vs[] = $value; |
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| 451 | } |
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| 452 | 23 | $values[] = '(' . implode(', ', $vs) . ')'; |
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| 453 | } |
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| 454 | 25 | if (empty($values)) { |
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| 455 | 2 | return ''; |
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| 456 | } |
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| 457 | |||
| 458 | 23 | foreach ($columns as $i => $name) { |
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| 459 | 21 | $columns[$i] = $schema->quoteColumnName($name); |
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| 460 | } |
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| 461 | |||
| 462 | 23 | return 'INSERT INTO ' . $schema->quoteTableName($table) |
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| 463 | 23 | . ' (' . implode(', ', $columns) . ') VALUES ' . implode(', ', $values); |
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| 464 | } |
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| 465 | |||
| 466 | /** |
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| 467 | * Creates an SQL statement to insert rows into a database table if |
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| 468 | * they do not already exist (matching unique constraints), |
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| 469 | * or update them if they do. |
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| 470 | * |
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| 471 | * For example, |
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| 472 | * |
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| 473 | * ```php |
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| 474 | * $sql = $queryBuilder->upsert('pages', [ |
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| 475 | * 'name' => 'Front page', |
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| 476 | * 'url' => 'http://example.com/', // url is unique |
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| 477 | * 'visits' => 0, |
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| 478 | * ], [ |
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| 479 | * 'visits' => new \yii\db\Expression('visits + 1'), |
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| 480 | * ], $params); |
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| 481 | * ``` |
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| 482 | * |
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| 483 | * The method will properly escape the table and column names. |
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| 484 | * |
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| 485 | * @param string $table the table that new rows will be inserted into/updated in. |
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| 486 | * @param array|Query $insertColumns the column data (name => value) to be inserted into the table or instance |
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| 487 | * of [[Query]] to perform `INSERT INTO ... SELECT` SQL statement. |
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| 488 | * @param array|bool $updateColumns the column data (name => value) to be updated if they already exist. |
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| 489 | * If `true` is passed, the column data will be updated to match the insert column data. |
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| 490 | * If `false` is passed, no update will be performed if the column data already exists. |
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| 491 | * @param array $params the binding parameters that will be generated by this method. |
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| 492 | * They should be bound to the DB command later. |
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| 493 | * @return string the resulting SQL. |
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| 494 | * @throws NotSupportedException if this is not supported by the underlying DBMS. |
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| 495 | * @since 2.0.14 |
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| 496 | */ |
||
| 497 | public function upsert($table, $insertColumns, $updateColumns, &$params) |
||
| 498 | { |
||
| 499 | throw new NotSupportedException($this->db->getDriverName() . ' does not support upsert statements.'); |
||
| 500 | } |
||
| 501 | |||
| 502 | /** |
||
| 503 | * @param string $table |
||
| 504 | * @param array|Query $insertColumns |
||
| 505 | * @param array|bool $updateColumns |
||
| 506 | * @param Constraint[] $constraints this parameter recieves a matched constraint list. |
||
| 507 | * The constraints will be unique by their column names. |
||
| 508 | * @return array |
||
| 509 | * @since 2.0.14 |
||
| 510 | */ |
||
| 511 | 66 | protected function prepareUpsertColumns($table, $insertColumns, $updateColumns, &$constraints = []) |
|
| 512 | { |
||
| 513 | 66 | if ($insertColumns instanceof Query) { |
|
| 514 | 24 | list($insertNames) = $this->prepareInsertSelectSubQuery($insertColumns, $this->db->getSchema()); |
|
| 515 | } else { |
||
| 516 | 42 | $insertNames = array_map([$this->db, 'quoteColumnName'], array_keys($insertColumns)); |
|
| 517 | } |
||
| 518 | 66 | $uniqueNames = $this->getTableUniqueColumnNames($table, $insertNames, $constraints); |
|
| 519 | 66 | $uniqueNames = array_map([$this->db, 'quoteColumnName'], $uniqueNames); |
|
| 520 | 66 | if ($updateColumns !== true) { |
|
| 521 | 36 | return [$uniqueNames, $insertNames, null]; |
|
| 522 | } |
||
| 523 | |||
| 524 | 30 | return [$uniqueNames, $insertNames, array_diff($insertNames, $uniqueNames)]; |
|
| 525 | } |
||
| 526 | |||
| 527 | /** |
||
| 528 | * Returns all column names belonging to constraints enforcing uniqueness (`PRIMARY KEY`, `UNIQUE INDEX`, etc.) |
||
| 529 | * for the named table removing constraints which did not cover the specified column list. |
||
| 530 | * The column list will be unique by column names. |
||
| 531 | * |
||
| 532 | * @param string $name table name. The table name may contain schema name if any. Do not quote the table name. |
||
| 533 | * @param string[] $columns source column list. |
||
| 534 | * @param Constraint[] $constraints this parameter optionally recieves a matched constraint list. |
||
| 535 | * The constraints will be unique by their column names. |
||
| 536 | * @return string[] column list. |
||
| 537 | */ |
||
| 538 | 66 | private function getTableUniqueColumnNames($name, $columns, &$constraints = []) |
|
| 539 | { |
||
| 540 | 66 | $schema = $this->db->getSchema(); |
|
| 541 | 66 | if (!$schema instanceof ConstraintFinderInterface) { |
|
| 542 | return []; |
||
| 543 | } |
||
| 544 | |||
| 545 | 66 | $constraints = []; |
|
| 546 | 66 | $primaryKey = $schema->getTablePrimaryKey($name); |
|
| 547 | 66 | if ($primaryKey !== null) { |
|
| 548 | 49 | $constraints[] = $primaryKey; |
|
| 549 | } |
||
| 550 | 66 | foreach ($schema->getTableIndexes($name) as $constraint) { |
|
| 551 | 66 | if ($constraint->isUnique) { |
|
| 552 | 66 | $constraints[] = $constraint; |
|
| 553 | } |
||
| 554 | } |
||
| 555 | 66 | $constraints = array_merge($constraints, $schema->getTableUniques($name)); |
|
| 556 | // Remove duplicates |
||
| 557 | $constraints = array_combine(array_map(function (Constraint $constraint) { |
||
| 558 | 66 | $columns = $constraint->columnNames; |
|
| 559 | 66 | sort($columns, SORT_STRING); |
|
| 560 | 66 | return json_encode($columns); |
|
| 561 | 66 | }, $constraints), $constraints); |
|
| 562 | 66 | $columnNames = []; |
|
| 563 | // Remove all constraints which do not cover the specified column list |
||
| 564 | $constraints = array_values(array_filter($constraints, function (Constraint $constraint) use ($schema, $columns, &$columnNames) { |
||
| 565 | 66 | $constraintColumnNames = array_map([$schema, 'quoteColumnName'], $constraint->columnNames); |
|
| 566 | 66 | $result = !array_diff($constraintColumnNames, $columns); |
|
| 567 | 66 | if ($result) { |
|
| 568 | 57 | $columnNames = array_merge($columnNames, $constraintColumnNames); |
|
| 569 | } |
||
| 570 | 66 | return $result; |
|
| 571 | 66 | })); |
|
| 572 | 66 | return array_unique($columnNames); |
|
| 573 | } |
||
| 574 | |||
| 575 | /** |
||
| 576 | * Creates an UPDATE SQL statement. |
||
| 577 | * |
||
| 578 | * For example, |
||
| 579 | * |
||
| 580 | * ```php |
||
| 581 | * $params = []; |
||
| 582 | * $sql = $queryBuilder->update('user', ['status' => 1], 'age > 30', $params); |
||
| 583 | * ``` |
||
| 584 | * |
||
| 585 | * The method will properly escape the table and column names. |
||
| 586 | * |
||
| 587 | * @param string $table the table to be updated. |
||
| 588 | * @param array $columns the column data (name => value) to be updated. |
||
| 589 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
||
| 590 | * refer to [[Query::where()]] on how to specify condition. |
||
| 591 | * @param array $params the binding parameters that will be modified by this method |
||
| 592 | * so that they can be bound to the DB command later. |
||
| 593 | * @return string the UPDATE SQL |
||
| 594 | */ |
||
| 595 | 128 | public function update($table, $columns, $condition, &$params) |
|
| 596 | { |
||
| 597 | 128 | list($lines, $params) = $this->prepareUpdateSets($table, $columns, $params); |
|
| 598 | 128 | $sql = 'UPDATE ' . $this->db->quoteTableName($table) . ' SET ' . implode(', ', $lines); |
|
| 599 | 128 | $where = $this->buildWhere($condition, $params); |
|
| 600 | 128 | return $where === '' ? $sql : $sql . ' ' . $where; |
|
| 601 | } |
||
| 602 | |||
| 603 | /** |
||
| 604 | * Prepares a `SET` parts for an `UPDATE` SQL statement. |
||
| 605 | * @param string $table the table to be updated. |
||
| 606 | * @param array $columns the column data (name => value) to be updated. |
||
| 607 | * @param array $params the binding parameters that will be modified by this method |
||
| 608 | * so that they can be bound to the DB command later. |
||
| 609 | * @return array an array `SET` parts for an `UPDATE` SQL statement (the first array element) and params (the second array element). |
||
| 610 | * @since 2.0.14 |
||
| 611 | */ |
||
| 612 | 160 | protected function prepareUpdateSets($table, $columns, $params = []) |
|
| 613 | { |
||
| 614 | 160 | $tableSchema = $this->db->getTableSchema($table); |
|
| 615 | 160 | $columnSchemas = $tableSchema !== null ? $tableSchema->columns : []; |
|
| 616 | 160 | $sets = []; |
|
| 617 | 160 | foreach ($columns as $name => $value) { |
|
| 618 | 160 | if ($value instanceof ExpressionInterface) { |
|
| 619 | 85 | $sets[] = $this->db->quoteColumnName($name) . '=' . $this->buildExpression($value, $params); |
|
| 620 | } else { |
||
| 621 | 125 | $phName = $this->bindParam( |
|
| 622 | 125 | isset($columnSchemas[$name]) ? $columnSchemas[$name]->dbTypecast($value) : $value, |
|
| 623 | 125 | $params |
|
| 624 | ); |
||
| 625 | 160 | $sets[] = $this->db->quoteColumnName($name) . '=' . $phName; |
|
| 626 | } |
||
| 627 | } |
||
| 628 | 160 | return [$sets, $params]; |
|
| 629 | } |
||
| 630 | |||
| 631 | /** |
||
| 632 | * Creates a DELETE SQL statement. |
||
| 633 | * |
||
| 634 | * For example, |
||
| 635 | * |
||
| 636 | * ```php |
||
| 637 | * $sql = $queryBuilder->delete('user', 'status = 0'); |
||
| 638 | * ``` |
||
| 639 | * |
||
| 640 | * The method will properly escape the table and column names. |
||
| 641 | * |
||
| 642 | * @param string $table the table where the data will be deleted from. |
||
| 643 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
||
| 644 | * refer to [[Query::where()]] on how to specify condition. |
||
| 645 | * @param array $params the binding parameters that will be modified by this method |
||
| 646 | * so that they can be bound to the DB command later. |
||
| 647 | * @return string the DELETE SQL |
||
| 648 | */ |
||
| 649 | 353 | public function delete($table, $condition, &$params) |
|
| 650 | { |
||
| 651 | 353 | $sql = 'DELETE FROM ' . $this->db->quoteTableName($table); |
|
| 652 | 353 | $where = $this->buildWhere($condition, $params); |
|
| 653 | |||
| 654 | 353 | return $where === '' ? $sql : $sql . ' ' . $where; |
|
| 655 | } |
||
| 656 | |||
| 657 | /** |
||
| 658 | * Builds a SQL statement for creating a new DB table. |
||
| 659 | * |
||
| 660 | * The columns in the new table should be specified as name-definition pairs (e.g. 'name' => 'string'), |
||
| 661 | * where name stands for a column name which will be properly quoted by the method, and definition |
||
| 662 | * stands for the column type which can contain an abstract DB type. |
||
| 663 | * The [[getColumnType()]] method will be invoked to convert any abstract type into a physical one. |
||
| 664 | * |
||
| 665 | * If a column is specified with definition only (e.g. 'PRIMARY KEY (name, type)'), it will be directly |
||
| 666 | * inserted into the generated SQL. |
||
| 667 | * |
||
| 668 | * For example, |
||
| 669 | * |
||
| 670 | * ```php |
||
| 671 | * $sql = $queryBuilder->createTable('user', [ |
||
| 672 | * 'id' => 'pk', |
||
| 673 | * 'name' => 'string', |
||
| 674 | * 'age' => 'integer', |
||
| 675 | * ]); |
||
| 676 | * ``` |
||
| 677 | * |
||
| 678 | * @param string $table the name of the table to be created. The name will be properly quoted by the method. |
||
| 679 | * @param array $columns the columns (name => definition) in the new table. |
||
| 680 | * @param string $options additional SQL fragment that will be appended to the generated SQL. |
||
| 681 | * @return string the SQL statement for creating a new DB table. |
||
| 682 | */ |
||
| 683 | 137 | public function createTable($table, $columns, $options = null) |
|
| 684 | { |
||
| 685 | 137 | $cols = []; |
|
| 686 | 137 | foreach ($columns as $name => $type) { |
|
| 687 | 137 | if (is_string($name)) { |
|
| 688 | 137 | $cols[] = "\t" . $this->db->quoteColumnName($name) . ' ' . $this->getColumnType($type); |
|
| 689 | } else { |
||
| 690 | 137 | $cols[] = "\t" . $type; |
|
| 691 | } |
||
| 692 | } |
||
| 693 | 137 | $sql = 'CREATE TABLE ' . $this->db->quoteTableName($table) . " (\n" . implode(",\n", $cols) . "\n)"; |
|
| 694 | |||
| 695 | 137 | return $options === null ? $sql : $sql . ' ' . $options; |
|
| 696 | } |
||
| 697 | |||
| 698 | /** |
||
| 699 | * Builds a SQL statement for renaming a DB table. |
||
| 700 | * @param string $oldName the table to be renamed. The name will be properly quoted by the method. |
||
| 701 | * @param string $newName the new table name. The name will be properly quoted by the method. |
||
| 702 | * @return string the SQL statement for renaming a DB table. |
||
| 703 | */ |
||
| 704 | 1 | public function renameTable($oldName, $newName) |
|
| 705 | { |
||
| 706 | 1 | return 'RENAME TABLE ' . $this->db->quoteTableName($oldName) . ' TO ' . $this->db->quoteTableName($newName); |
|
| 707 | } |
||
| 708 | |||
| 709 | /** |
||
| 710 | * Builds a SQL statement for dropping a DB table. |
||
| 711 | * @param string $table the table to be dropped. The name will be properly quoted by the method. |
||
| 712 | * @return string the SQL statement for dropping a DB table. |
||
| 713 | */ |
||
| 714 | 39 | public function dropTable($table) |
|
| 715 | { |
||
| 716 | 39 | return 'DROP TABLE ' . $this->db->quoteTableName($table); |
|
| 717 | } |
||
| 718 | |||
| 719 | /** |
||
| 720 | * Builds a SQL statement for adding a primary key constraint to an existing table. |
||
| 721 | * @param string $name the name of the primary key constraint. |
||
| 722 | * @param string $table the table that the primary key constraint will be added to. |
||
| 723 | * @param string|array $columns comma separated string or array of columns that the primary key will consist of. |
||
| 724 | * @return string the SQL statement for adding a primary key constraint to an existing table. |
||
| 725 | */ |
||
| 726 | 6 | public function addPrimaryKey($name, $table, $columns) |
|
| 727 | { |
||
| 728 | 6 | if (is_string($columns)) { |
|
| 729 | 4 | $columns = preg_split('/\s*,\s*/', $columns, -1, PREG_SPLIT_NO_EMPTY); |
|
| 730 | } |
||
| 731 | |||
| 732 | 6 | foreach ($columns as $i => $col) { |
|
| 733 | 6 | $columns[$i] = $this->db->quoteColumnName($col); |
|
| 734 | } |
||
| 735 | |||
| 736 | 6 | return 'ALTER TABLE ' . $this->db->quoteTableName($table) . ' ADD CONSTRAINT ' |
|
| 737 | 6 | . $this->db->quoteColumnName($name) . ' PRIMARY KEY (' |
|
| 738 | 6 | . implode(', ', $columns) . ')'; |
|
| 739 | } |
||
| 740 | |||
| 741 | /** |
||
| 742 | * Builds a SQL statement for removing a primary key constraint to an existing table. |
||
| 743 | * @param string $name the name of the primary key constraint to be removed. |
||
| 744 | * @param string $table the table that the primary key constraint will be removed from. |
||
| 745 | * @return string the SQL statement for removing a primary key constraint from an existing table. |
||
| 746 | */ |
||
| 747 | 2 | public function dropPrimaryKey($name, $table) |
|
| 748 | { |
||
| 749 | 2 | return 'ALTER TABLE ' . $this->db->quoteTableName($table) |
|
| 750 | 2 | . ' DROP CONSTRAINT ' . $this->db->quoteColumnName($name); |
|
| 751 | } |
||
| 752 | |||
| 753 | /** |
||
| 754 | * Builds a SQL statement for truncating a DB table. |
||
| 755 | * @param string $table the table to be truncated. The name will be properly quoted by the method. |
||
| 756 | * @return string the SQL statement for truncating a DB table. |
||
| 757 | */ |
||
| 758 | 11 | public function truncateTable($table) |
|
| 759 | { |
||
| 760 | 11 | return 'TRUNCATE TABLE ' . $this->db->quoteTableName($table); |
|
| 761 | } |
||
| 762 | |||
| 763 | /** |
||
| 764 | * Builds a SQL statement for adding a new DB column. |
||
| 765 | * @param string $table the table that the new column will be added to. The table name will be properly quoted by the method. |
||
| 766 | * @param string $column the name of the new column. The name will be properly quoted by the method. |
||
| 767 | * @param string $type the column type. The [[getColumnType()]] method will be invoked to convert abstract column type (if any) |
||
| 768 | * into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL. |
||
| 769 | * For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'. |
||
| 770 | * @return string the SQL statement for adding a new column. |
||
| 771 | */ |
||
| 772 | 4 | public function addColumn($table, $column, $type) |
|
| 773 | { |
||
| 774 | 4 | return 'ALTER TABLE ' . $this->db->quoteTableName($table) |
|
| 775 | 4 | . ' ADD ' . $this->db->quoteColumnName($column) . ' ' |
|
| 776 | 4 | . $this->getColumnType($type); |
|
| 777 | } |
||
| 778 | |||
| 779 | /** |
||
| 780 | * Builds a SQL statement for dropping a DB column. |
||
| 781 | * @param string $table the table whose column is to be dropped. The name will be properly quoted by the method. |
||
| 782 | * @param string $column the name of the column to be dropped. The name will be properly quoted by the method. |
||
| 783 | * @return string the SQL statement for dropping a DB column. |
||
| 784 | */ |
||
| 785 | public function dropColumn($table, $column) |
||
| 786 | { |
||
| 787 | return 'ALTER TABLE ' . $this->db->quoteTableName($table) |
||
| 788 | . ' DROP COLUMN ' . $this->db->quoteColumnName($column); |
||
| 789 | } |
||
| 790 | |||
| 791 | /** |
||
| 792 | * Builds a SQL statement for renaming a column. |
||
| 793 | * @param string $table the table whose column is to be renamed. The name will be properly quoted by the method. |
||
| 794 | * @param string $oldName the old name of the column. The name will be properly quoted by the method. |
||
| 795 | * @param string $newName the new name of the column. The name will be properly quoted by the method. |
||
| 796 | * @return string the SQL statement for renaming a DB column. |
||
| 797 | */ |
||
| 798 | public function renameColumn($table, $oldName, $newName) |
||
| 799 | { |
||
| 800 | return 'ALTER TABLE ' . $this->db->quoteTableName($table) |
||
| 801 | . ' RENAME COLUMN ' . $this->db->quoteColumnName($oldName) |
||
| 802 | . ' TO ' . $this->db->quoteColumnName($newName); |
||
| 803 | } |
||
| 804 | |||
| 805 | /** |
||
| 806 | * Builds a SQL statement for changing the definition of a column. |
||
| 807 | * @param string $table the table whose column is to be changed. The table name will be properly quoted by the method. |
||
| 808 | * @param string $column the name of the column to be changed. The name will be properly quoted by the method. |
||
| 809 | * @param string $type the new column type. The [[getColumnType()]] method will be invoked to convert abstract |
||
| 810 | * column type (if any) into the physical one. Anything that is not recognized as abstract type will be kept |
||
| 811 | * in the generated SQL. For example, 'string' will be turned into 'varchar(255)', while 'string not null' |
||
| 812 | * will become 'varchar(255) not null'. |
||
| 813 | * @return string the SQL statement for changing the definition of a column. |
||
| 814 | */ |
||
| 815 | 1 | public function alterColumn($table, $column, $type) |
|
| 816 | { |
||
| 817 | 1 | return 'ALTER TABLE ' . $this->db->quoteTableName($table) . ' CHANGE ' |
|
| 818 | 1 | . $this->db->quoteColumnName($column) . ' ' |
|
| 819 | 1 | . $this->db->quoteColumnName($column) . ' ' |
|
| 820 | 1 | . $this->getColumnType($type); |
|
| 821 | } |
||
| 822 | |||
| 823 | /** |
||
| 824 | * Builds a SQL statement for adding a foreign key constraint to an existing table. |
||
| 825 | * The method will properly quote the table and column names. |
||
| 826 | * @param string $name the name of the foreign key constraint. |
||
| 827 | * @param string $table the table that the foreign key constraint will be added to. |
||
| 828 | * @param string|array $columns the name of the column to that the constraint will be added on. |
||
| 829 | * If there are multiple columns, separate them with commas or use an array to represent them. |
||
| 830 | * @param string $refTable the table that the foreign key references to. |
||
| 831 | * @param string|array $refColumns the name of the column that the foreign key references to. |
||
| 832 | * If there are multiple columns, separate them with commas or use an array to represent them. |
||
| 833 | * @param string $delete the ON DELETE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
||
| 834 | * @param string $update the ON UPDATE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
||
| 835 | * @return string the SQL statement for adding a foreign key constraint to an existing table. |
||
| 836 | */ |
||
| 837 | 8 | public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null) |
|
| 838 | { |
||
| 839 | 8 | $sql = 'ALTER TABLE ' . $this->db->quoteTableName($table) |
|
| 840 | 8 | . ' ADD CONSTRAINT ' . $this->db->quoteColumnName($name) |
|
| 841 | 8 | . ' FOREIGN KEY (' . $this->buildColumns($columns) . ')' |
|
| 842 | 8 | . ' REFERENCES ' . $this->db->quoteTableName($refTable) |
|
| 843 | 8 | . ' (' . $this->buildColumns($refColumns) . ')'; |
|
| 844 | 8 | if ($delete !== null) { |
|
| 845 | 4 | $sql .= ' ON DELETE ' . $delete; |
|
| 846 | } |
||
| 847 | 8 | if ($update !== null) { |
|
| 848 | 4 | $sql .= ' ON UPDATE ' . $update; |
|
| 849 | } |
||
| 850 | |||
| 851 | 8 | return $sql; |
|
| 852 | } |
||
| 853 | |||
| 854 | /** |
||
| 855 | * Builds a SQL statement for dropping a foreign key constraint. |
||
| 856 | * @param string $name the name of the foreign key constraint to be dropped. The name will be properly quoted by the method. |
||
| 857 | * @param string $table the table whose foreign is to be dropped. The name will be properly quoted by the method. |
||
| 858 | * @return string the SQL statement for dropping a foreign key constraint. |
||
| 859 | */ |
||
| 860 | 3 | public function dropForeignKey($name, $table) |
|
| 861 | { |
||
| 862 | 3 | return 'ALTER TABLE ' . $this->db->quoteTableName($table) |
|
| 863 | 3 | . ' DROP CONSTRAINT ' . $this->db->quoteColumnName($name); |
|
| 864 | } |
||
| 865 | |||
| 866 | /** |
||
| 867 | * Builds a SQL statement for creating a new index. |
||
| 868 | * @param string $name the name of the index. The name will be properly quoted by the method. |
||
| 869 | * @param string $table the table that the new index will be created for. The table name will be properly quoted by the method. |
||
| 870 | * @param string|array $columns the column(s) that should be included in the index. If there are multiple columns, |
||
| 871 | * separate them with commas or use an array to represent them. Each column name will be properly quoted |
||
| 872 | * by the method, unless a parenthesis is found in the name. |
||
| 873 | * @param bool $unique whether to add UNIQUE constraint on the created index. |
||
| 874 | * @return string the SQL statement for creating a new index. |
||
| 875 | */ |
||
| 876 | 6 | public function createIndex($name, $table, $columns, $unique = false) |
|
| 877 | { |
||
| 878 | 6 | return ($unique ? 'CREATE UNIQUE INDEX ' : 'CREATE INDEX ') |
|
| 879 | 6 | . $this->db->quoteTableName($name) . ' ON ' |
|
| 880 | 6 | . $this->db->quoteTableName($table) |
|
| 881 | 6 | . ' (' . $this->buildColumns($columns) . ')'; |
|
| 882 | } |
||
| 883 | |||
| 884 | /** |
||
| 885 | * Builds a SQL statement for dropping an index. |
||
| 886 | * @param string $name the name of the index to be dropped. The name will be properly quoted by the method. |
||
| 887 | * @param string $table the table whose index is to be dropped. The name will be properly quoted by the method. |
||
| 888 | * @return string the SQL statement for dropping an index. |
||
| 889 | */ |
||
| 890 | 4 | public function dropIndex($name, $table) |
|
| 891 | { |
||
| 892 | 4 | return 'DROP INDEX ' . $this->db->quoteTableName($name) . ' ON ' . $this->db->quoteTableName($table); |
|
| 893 | } |
||
| 894 | |||
| 895 | /** |
||
| 896 | * Creates a SQL command for adding an unique constraint to an existing table. |
||
| 897 | * @param string $name the name of the unique constraint. |
||
| 898 | * The name will be properly quoted by the method. |
||
| 899 | * @param string $table the table that the unique constraint will be added to. |
||
| 900 | * The name will be properly quoted by the method. |
||
| 901 | * @param string|array $columns the name of the column to that the constraint will be added on. |
||
| 902 | * If there are multiple columns, separate them with commas. |
||
| 903 | * The name will be properly quoted by the method. |
||
| 904 | * @return string the SQL statement for adding an unique constraint to an existing table. |
||
| 905 | * @since 2.0.13 |
||
| 906 | */ |
||
| 907 | 6 | public function addUnique($name, $table, $columns) |
|
| 908 | { |
||
| 909 | 6 | if (is_string($columns)) { |
|
| 910 | 4 | $columns = preg_split('/\s*,\s*/', $columns, -1, PREG_SPLIT_NO_EMPTY); |
|
| 911 | } |
||
| 912 | 6 | foreach ($columns as $i => $col) { |
|
| 913 | 6 | $columns[$i] = $this->db->quoteColumnName($col); |
|
| 914 | } |
||
| 915 | |||
| 916 | 6 | return 'ALTER TABLE ' . $this->db->quoteTableName($table) . ' ADD CONSTRAINT ' |
|
| 917 | 6 | . $this->db->quoteColumnName($name) . ' UNIQUE (' |
|
| 918 | 6 | . implode(', ', $columns) . ')'; |
|
| 919 | } |
||
| 920 | |||
| 921 | /** |
||
| 922 | * Creates a SQL command for dropping an unique constraint. |
||
| 923 | * @param string $name the name of the unique constraint to be dropped. |
||
| 924 | * The name will be properly quoted by the method. |
||
| 925 | * @param string $table the table whose unique constraint is to be dropped. |
||
| 926 | * The name will be properly quoted by the method. |
||
| 927 | * @return string the SQL statement for dropping an unique constraint. |
||
| 928 | * @since 2.0.13 |
||
| 929 | */ |
||
| 930 | 2 | public function dropUnique($name, $table) |
|
| 931 | { |
||
| 932 | 2 | return 'ALTER TABLE ' . $this->db->quoteTableName($table) |
|
| 933 | 2 | . ' DROP CONSTRAINT ' . $this->db->quoteColumnName($name); |
|
| 934 | } |
||
| 935 | |||
| 936 | /** |
||
| 937 | * Creates a SQL command for adding a check constraint to an existing table. |
||
| 938 | * @param string $name the name of the check constraint. |
||
| 939 | * The name will be properly quoted by the method. |
||
| 940 | * @param string $table the table that the check constraint will be added to. |
||
| 941 | * The name will be properly quoted by the method. |
||
| 942 | * @param string $expression the SQL of the `CHECK` constraint. |
||
| 943 | * @return string the SQL statement for adding a check constraint to an existing table. |
||
| 944 | * @since 2.0.13 |
||
| 945 | */ |
||
| 946 | 2 | public function addCheck($name, $table, $expression) |
|
| 947 | { |
||
| 948 | 2 | return 'ALTER TABLE ' . $this->db->quoteTableName($table) . ' ADD CONSTRAINT ' |
|
| 949 | 2 | . $this->db->quoteColumnName($name) . ' CHECK (' . $this->db->quoteSql($expression) . ')'; |
|
| 950 | } |
||
| 951 | |||
| 952 | /** |
||
| 953 | * Creates a SQL command for dropping a check constraint. |
||
| 954 | * @param string $name the name of the check constraint to be dropped. |
||
| 955 | * The name will be properly quoted by the method. |
||
| 956 | * @param string $table the table whose check constraint is to be dropped. |
||
| 957 | * The name will be properly quoted by the method. |
||
| 958 | * @return string the SQL statement for dropping a check constraint. |
||
| 959 | * @since 2.0.13 |
||
| 960 | */ |
||
| 961 | 2 | public function dropCheck($name, $table) |
|
| 962 | { |
||
| 963 | 2 | return 'ALTER TABLE ' . $this->db->quoteTableName($table) |
|
| 964 | 2 | . ' DROP CONSTRAINT ' . $this->db->quoteColumnName($name); |
|
| 965 | } |
||
| 966 | |||
| 967 | /** |
||
| 968 | * Creates a SQL command for adding a default value constraint to an existing table. |
||
| 969 | * @param string $name the name of the default value constraint. |
||
| 970 | * The name will be properly quoted by the method. |
||
| 971 | * @param string $table the table that the default value constraint will be added to. |
||
| 972 | * The name will be properly quoted by the method. |
||
| 973 | * @param string $column the name of the column to that the constraint will be added on. |
||
| 974 | * The name will be properly quoted by the method. |
||
| 975 | * @param mixed $value default value. |
||
| 976 | * @return string the SQL statement for adding a default value constraint to an existing table. |
||
| 977 | * @throws NotSupportedException if this is not supported by the underlying DBMS. |
||
| 978 | * @since 2.0.13 |
||
| 979 | */ |
||
| 980 | public function addDefaultValue($name, $table, $column, $value) |
||
| 981 | { |
||
| 982 | throw new NotSupportedException($this->db->getDriverName() . ' does not support adding default value constraints.'); |
||
| 983 | } |
||
| 984 | |||
| 985 | /** |
||
| 986 | * Creates a SQL command for dropping a default value constraint. |
||
| 987 | * @param string $name the name of the default value constraint to be dropped. |
||
| 988 | * The name will be properly quoted by the method. |
||
| 989 | * @param string $table the table whose default value constraint is to be dropped. |
||
| 990 | * The name will be properly quoted by the method. |
||
| 991 | * @return string the SQL statement for dropping a default value constraint. |
||
| 992 | * @throws NotSupportedException if this is not supported by the underlying DBMS. |
||
| 993 | * @since 2.0.13 |
||
| 994 | */ |
||
| 995 | public function dropDefaultValue($name, $table) |
||
| 996 | { |
||
| 997 | throw new NotSupportedException($this->db->getDriverName() . ' does not support dropping default value constraints.'); |
||
| 998 | } |
||
| 999 | |||
| 1000 | /** |
||
| 1001 | * Creates a SQL statement for resetting the sequence value of a table's primary key. |
||
| 1002 | * The sequence will be reset such that the primary key of the next new row inserted |
||
| 1003 | * will have the specified value or 1. |
||
| 1004 | * @param string $table the name of the table whose primary key sequence will be reset |
||
| 1005 | * @param array|string $value the value for the primary key of the next new row inserted. If this is not set, |
||
| 1006 | * the next new row's primary key will have a value 1. |
||
| 1007 | * @return string the SQL statement for resetting sequence |
||
| 1008 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
||
| 1009 | */ |
||
| 1010 | public function resetSequence($table, $value = null) |
||
| 1011 | { |
||
| 1012 | throw new NotSupportedException($this->db->getDriverName() . ' does not support resetting sequence.'); |
||
| 1013 | } |
||
| 1014 | |||
| 1015 | /** |
||
| 1016 | * Builds a SQL statement for enabling or disabling integrity check. |
||
| 1017 | * @param bool $check whether to turn on or off the integrity check. |
||
| 1018 | * @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema. |
||
| 1019 | * @param string $table the table name. Defaults to empty string, meaning that no table will be changed. |
||
| 1020 | * @return string the SQL statement for checking integrity |
||
| 1021 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
||
| 1022 | */ |
||
| 1023 | public function checkIntegrity($check = true, $schema = '', $table = '') |
||
| 1024 | { |
||
| 1025 | throw new NotSupportedException($this->db->getDriverName() . ' does not support enabling/disabling integrity check.'); |
||
| 1026 | } |
||
| 1027 | |||
| 1028 | /** |
||
| 1029 | * Builds a SQL command for adding comment to column. |
||
| 1030 | * |
||
| 1031 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 1032 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
||
| 1033 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
||
| 1034 | * @return string the SQL statement for adding comment on column |
||
| 1035 | * @since 2.0.8 |
||
| 1036 | */ |
||
| 1037 | 2 | public function addCommentOnColumn($table, $column, $comment) |
|
| 1038 | { |
||
| 1039 | 2 | return 'COMMENT ON COLUMN ' . $this->db->quoteTableName($table) . '.' . $this->db->quoteColumnName($column) . ' IS ' . $this->db->quoteValue($comment); |
|
| 1040 | } |
||
| 1041 | |||
| 1042 | /** |
||
| 1043 | * Builds a SQL command for adding comment to table. |
||
| 1044 | * |
||
| 1045 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 1046 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
||
| 1047 | * @return string the SQL statement for adding comment on table |
||
| 1048 | * @since 2.0.8 |
||
| 1049 | */ |
||
| 1050 | 1 | public function addCommentOnTable($table, $comment) |
|
| 1051 | { |
||
| 1052 | 1 | return 'COMMENT ON TABLE ' . $this->db->quoteTableName($table) . ' IS ' . $this->db->quoteValue($comment); |
|
| 1053 | } |
||
| 1054 | |||
| 1055 | /** |
||
| 1056 | * Builds a SQL command for adding comment to column. |
||
| 1057 | * |
||
| 1058 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 1059 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
||
| 1060 | * @return string the SQL statement for adding comment on column |
||
| 1061 | * @since 2.0.8 |
||
| 1062 | */ |
||
| 1063 | 2 | public function dropCommentFromColumn($table, $column) |
|
| 1064 | { |
||
| 1065 | 2 | return 'COMMENT ON COLUMN ' . $this->db->quoteTableName($table) . '.' . $this->db->quoteColumnName($column) . ' IS NULL'; |
|
| 1066 | } |
||
| 1067 | |||
| 1068 | /** |
||
| 1069 | * Builds a SQL command for adding comment to table. |
||
| 1070 | * |
||
| 1071 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
||
| 1072 | * @return string the SQL statement for adding comment on column |
||
| 1073 | * @since 2.0.8 |
||
| 1074 | */ |
||
| 1075 | 1 | public function dropCommentFromTable($table) |
|
| 1076 | { |
||
| 1077 | 1 | return 'COMMENT ON TABLE ' . $this->db->quoteTableName($table) . ' IS NULL'; |
|
| 1078 | } |
||
| 1079 | |||
| 1080 | /** |
||
| 1081 | * Creates a SQL View. |
||
| 1082 | * |
||
| 1083 | * @param string $viewName the name of the view to be created. |
||
| 1084 | * @param string|Query $subQuery the select statement which defines the view. |
||
| 1085 | * This can be either a string or a [[Query]] object. |
||
| 1086 | * @return string the `CREATE VIEW` SQL statement. |
||
| 1087 | * @since 2.0.14 |
||
| 1088 | */ |
||
| 1089 | 3 | public function createView($viewName, $subQuery) |
|
| 1090 | { |
||
| 1091 | 3 | if ($subQuery instanceof Query) { |
|
| 1092 | 3 | list($rawQuery, $params) = $this->build($subQuery); |
|
| 1093 | 3 | array_walk( |
|
| 1094 | 3 | $params, |
|
| 1095 | 3 | function(&$param) { |
|
| 1096 | 3 | $param = $this->db->quoteValue($param); |
|
| 1097 | 3 | } |
|
| 1098 | ); |
||
| 1099 | 3 | $subQuery = strtr($rawQuery, $params); |
|
| 1100 | } |
||
| 1101 | |||
| 1102 | 3 | return 'CREATE VIEW ' . $this->db->quoteTableName($viewName) . ' AS ' . $subQuery; |
|
| 1103 | } |
||
| 1104 | |||
| 1105 | /** |
||
| 1106 | * Drops a SQL View. |
||
| 1107 | * |
||
| 1108 | * @param string $viewName the name of the view to be dropped. |
||
| 1109 | * @return string the `DROP VIEW` SQL statement. |
||
| 1110 | * @since 2.0.14 |
||
| 1111 | */ |
||
| 1112 | 3 | public function dropView($viewName) |
|
| 1113 | { |
||
| 1114 | 3 | return 'DROP VIEW ' . $this->db->quoteTableName($viewName); |
|
| 1115 | } |
||
| 1116 | |||
| 1117 | /** |
||
| 1118 | * Converts an abstract column type into a physical column type. |
||
| 1119 | * |
||
| 1120 | * The conversion is done using the type map specified in [[typeMap]]. |
||
| 1121 | * The following abstract column types are supported (using MySQL as an example to explain the corresponding |
||
| 1122 | * physical types): |
||
| 1123 | * |
||
| 1124 | * - `pk`: an auto-incremental primary key type, will be converted into "int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
||
| 1125 | * - `bigpk`: an auto-incremental primary key type, will be converted into "bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
||
| 1126 | * - `upk`: an unsigned auto-incremental primary key type, will be converted into "int(10) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY" |
||
| 1127 | * - `char`: char type, will be converted into "char(1)" |
||
| 1128 | * - `string`: string type, will be converted into "varchar(255)" |
||
| 1129 | * - `text`: a long string type, will be converted into "text" |
||
| 1130 | * - `smallint`: a small integer type, will be converted into "smallint(6)" |
||
| 1131 | * - `integer`: integer type, will be converted into "int(11)" |
||
| 1132 | * - `bigint`: a big integer type, will be converted into "bigint(20)" |
||
| 1133 | * - `boolean`: boolean type, will be converted into "tinyint(1)" |
||
| 1134 | * - `float``: float number type, will be converted into "float" |
||
| 1135 | * - `decimal`: decimal number type, will be converted into "decimal" |
||
| 1136 | * - `datetime`: datetime type, will be converted into "datetime" |
||
| 1137 | * - `timestamp`: timestamp type, will be converted into "timestamp" |
||
| 1138 | * - `time`: time type, will be converted into "time" |
||
| 1139 | * - `date`: date type, will be converted into "date" |
||
| 1140 | * - `money`: money type, will be converted into "decimal(19,4)" |
||
| 1141 | * - `binary`: binary data type, will be converted into "blob" |
||
| 1142 | * |
||
| 1143 | * If the abstract type contains two or more parts separated by spaces (e.g. "string NOT NULL"), then only |
||
| 1144 | * the first part will be converted, and the rest of the parts will be appended to the converted result. |
||
| 1145 | * For example, 'string NOT NULL' is converted to 'varchar(255) NOT NULL'. |
||
| 1146 | * |
||
| 1147 | * For some of the abstract types you can also specify a length or precision constraint |
||
| 1148 | * by appending it in round brackets directly to the type. |
||
| 1149 | * For example `string(32)` will be converted into "varchar(32)" on a MySQL database. |
||
| 1150 | * If the underlying DBMS does not support these kind of constraints for a type it will |
||
| 1151 | * be ignored. |
||
| 1152 | * |
||
| 1153 | * If a type cannot be found in [[typeMap]], it will be returned without any change. |
||
| 1154 | * @param string|ColumnSchemaBuilder $type abstract column type |
||
| 1155 | * @return string physical column type. |
||
| 1156 | */ |
||
| 1157 | 141 | public function getColumnType($type) |
|
| 1158 | { |
||
| 1159 | 141 | if ($type instanceof ColumnSchemaBuilder) { |
|
| 1160 | 33 | $type = $type->__toString(); |
|
| 1161 | } |
||
| 1162 | |||
| 1163 | 141 | if (isset($this->typeMap[$type])) { |
|
| 1164 | 128 | return $this->typeMap[$type]; |
|
| 1165 | 77 | } elseif (preg_match('/^(\w+)\((.+?)\)(.*)$/', $type, $matches)) { |
|
| 1166 | 39 | if (isset($this->typeMap[$matches[1]])) { |
|
| 1167 | 39 | return preg_replace('/\(.+\)/', '(' . $matches[2] . ')', $this->typeMap[$matches[1]]) . $matches[3]; |
|
| 1168 | } |
||
| 1169 | 52 | } elseif (preg_match('/^(\w+)\s+/', $type, $matches)) { |
|
| 1170 | 49 | if (isset($this->typeMap[$matches[1]])) { |
|
| 1171 | 49 | return preg_replace('/^\w+/', $this->typeMap[$matches[1]], $type); |
|
| 1172 | } |
||
| 1173 | } |
||
| 1174 | |||
| 1175 | 32 | return $type; |
|
| 1176 | } |
||
| 1177 | |||
| 1178 | /** |
||
| 1179 | * @param array $columns |
||
| 1180 | * @param array $params the binding parameters to be populated |
||
| 1181 | * @param bool $distinct |
||
| 1182 | * @param string $selectOption |
||
| 1183 | * @return string the SELECT clause built from [[Query::$select]]. |
||
| 1184 | */ |
||
| 1185 | 1153 | public function buildSelect($columns, &$params, $distinct = false, $selectOption = null) |
|
| 1186 | { |
||
| 1187 | 1153 | $select = $distinct ? 'SELECT DISTINCT' : 'SELECT'; |
|
| 1188 | 1153 | if ($selectOption !== null) { |
|
| 1189 | $select .= ' ' . $selectOption; |
||
| 1190 | } |
||
| 1191 | |||
| 1192 | 1153 | if (empty($columns)) { |
|
| 1193 | 888 | return $select . ' *'; |
|
| 1194 | } |
||
| 1195 | |||
| 1196 | 546 | foreach ($columns as $i => $column) { |
|
| 1197 | 546 | if ($column instanceof ExpressionInterface) { |
|
| 1198 | 42 | if (is_int($i)) { |
|
| 1199 | 6 | $columns[$i] = $this->buildExpression($column, $params); |
|
| 1200 | } else { |
||
| 1201 | 42 | $columns[$i] = $this->buildExpression($column, $params) . ' AS ' . $this->db->quoteColumnName($i); |
|
| 1202 | } |
||
| 1203 | 537 | } elseif ($column instanceof Query) { |
|
| 1204 | $sql = $this->buildExpression($column, $params); |
||
| 1205 | $columns[$i] = "$sql AS " . $this->db->quoteColumnName($i); |
||
| 1206 | 537 | } elseif (is_string($i)) { |
|
| 1207 | 23 | if (strpos($column, '(') === false) { |
|
| 1208 | 23 | $column = $this->db->quoteColumnName($column); |
|
| 1209 | } |
||
| 1210 | 23 | $columns[$i] = "$column AS " . $this->db->quoteColumnName($i); |
|
| 1211 | 532 | } elseif (strpos($column, '(') === false) { |
|
| 1212 | 448 | if (preg_match('/^(.*?)(?i:\s+as\s+|\s+)([\w\-_\.]+)$/', $column, $matches)) { |
|
| 1213 | 6 | $columns[$i] = $this->db->quoteColumnName($matches[1]) . ' AS ' . $this->db->quoteColumnName($matches[2]); |
|
| 1214 | } else { |
||
| 1215 | 546 | $columns[$i] = $this->db->quoteColumnName($column); |
|
| 1216 | } |
||
| 1217 | } |
||
| 1218 | } |
||
| 1219 | |||
| 1220 | 546 | return $select . ' ' . implode(', ', $columns); |
|
| 1221 | } |
||
| 1222 | |||
| 1223 | /** |
||
| 1224 | * @param array $tables |
||
| 1225 | * @param array $params the binding parameters to be populated |
||
| 1226 | * @return string the FROM clause built from [[Query::$from]]. |
||
| 1227 | */ |
||
| 1228 | 1153 | public function buildFrom($tables, &$params) |
|
| 1229 | { |
||
| 1230 | 1153 | if (empty($tables)) { |
|
| 1231 | 349 | return ''; |
|
| 1232 | } |
||
| 1233 | |||
| 1234 | 841 | $tables = $this->quoteTableNames($tables, $params); |
|
| 1235 | |||
| 1236 | 841 | return 'FROM ' . implode(', ', $tables); |
|
| 1237 | } |
||
| 1238 | |||
| 1239 | /** |
||
| 1240 | * @param array $joins |
||
| 1241 | * @param array $params the binding parameters to be populated |
||
| 1242 | * @return string the JOIN clause built from [[Query::$join]]. |
||
| 1243 | * @throws Exception if the $joins parameter is not in proper format |
||
| 1244 | */ |
||
| 1245 | 1153 | public function buildJoin($joins, &$params) |
|
| 1246 | { |
||
| 1247 | 1153 | if (empty($joins)) { |
|
| 1248 | 1141 | return ''; |
|
| 1249 | } |
||
| 1250 | |||
| 1251 | 54 | foreach ($joins as $i => $join) { |
|
| 1252 | 54 | if (!is_array($join) || !isset($join[0], $join[1])) { |
|
| 1253 | throw new Exception('A join clause must be specified as an array of join type, join table, and optionally join condition.'); |
||
| 1254 | } |
||
| 1255 | // 0:join type, 1:join table, 2:on-condition (optional) |
||
| 1256 | 54 | list($joinType, $table) = $join; |
|
| 1257 | 54 | $tables = $this->quoteTableNames((array) $table, $params); |
|
| 1258 | 54 | $table = reset($tables); |
|
| 1259 | 54 | $joins[$i] = "$joinType $table"; |
|
| 1260 | 54 | if (isset($join[2])) { |
|
| 1261 | 54 | $condition = $this->buildCondition($join[2], $params); |
|
| 1262 | 54 | if ($condition !== '') { |
|
| 1263 | 54 | $joins[$i] .= ' ON ' . $condition; |
|
| 1264 | } |
||
| 1265 | } |
||
| 1266 | } |
||
| 1267 | |||
| 1268 | 54 | return implode($this->separator, $joins); |
|
| 1269 | } |
||
| 1270 | |||
| 1271 | /** |
||
| 1272 | * Quotes table names passed. |
||
| 1273 | * |
||
| 1274 | * @param array $tables |
||
| 1275 | * @param array $params |
||
| 1276 | * @return array |
||
| 1277 | */ |
||
| 1278 | 841 | private function quoteTableNames($tables, &$params) |
|
| 1279 | { |
||
| 1280 | 841 | foreach ($tables as $i => $table) { |
|
| 1281 | 841 | if ($table instanceof Query) { |
|
| 1282 | 10 | $sql = $this->buildExpression($table, $params); |
|
| 1283 | 10 | $tables[$i] = "$sql " . $this->db->quoteTableName($i); |
|
| 1284 | 841 | } elseif (is_string($i)) { |
|
| 1285 | 79 | if (strpos($table, '(') === false) { |
|
| 1286 | 70 | $table = $this->db->quoteTableName($table); |
|
| 1287 | } |
||
| 1288 | 79 | $tables[$i] = "$table " . $this->db->quoteTableName($i); |
|
| 1289 | 820 | } elseif (strpos($table, '(') === false) { |
|
| 1290 | 813 | if (preg_match('/^(.*?)(?i:\s+as|)\s+([^ ]+)$/', $table, $matches)) { // with alias |
|
| 1291 | 21 | $tables[$i] = $this->db->quoteTableName($matches[1]) . ' ' . $this->db->quoteTableName($matches[2]); |
|
| 1292 | } else { |
||
| 1293 | 841 | $tables[$i] = $this->db->quoteTableName($table); |
|
| 1294 | } |
||
| 1295 | } |
||
| 1296 | } |
||
| 1297 | |||
| 1298 | 841 | return $tables; |
|
| 1299 | } |
||
| 1300 | |||
| 1301 | /** |
||
| 1302 | * @param string|array $condition |
||
| 1303 | * @param array $params the binding parameters to be populated |
||
| 1304 | * @return string the WHERE clause built from [[Query::$where]]. |
||
| 1305 | */ |
||
| 1306 | 1232 | public function buildWhere($condition, &$params) |
|
| 1307 | { |
||
| 1308 | 1232 | $where = $this->buildCondition($condition, $params); |
|
| 1309 | |||
| 1310 | 1232 | return $where === '' ? '' : 'WHERE ' . $where; |
|
| 1311 | } |
||
| 1312 | |||
| 1313 | /** |
||
| 1314 | * @param array $columns |
||
| 1315 | * @return string the GROUP BY clause |
||
| 1316 | */ |
||
| 1317 | 1153 | public function buildGroupBy($columns) |
|
| 1318 | { |
||
| 1319 | 1153 | if (empty($columns)) { |
|
| 1320 | 1147 | return ''; |
|
| 1321 | } |
||
| 1322 | 21 | foreach ($columns as $i => $column) { |
|
| 1323 | 21 | if ($column instanceof ExpressionInterface) { |
|
| 1324 | 3 | $columns[$i] = $this->buildExpression($column); |
|
| 1325 | 21 | } elseif (strpos($column, '(') === false) { |
|
| 1326 | 21 | $columns[$i] = $this->db->quoteColumnName($column); |
|
| 1327 | } |
||
| 1328 | } |
||
| 1329 | |||
| 1330 | 21 | return 'GROUP BY ' . implode(', ', $columns); |
|
| 1331 | } |
||
| 1332 | |||
| 1333 | /** |
||
| 1334 | * @param string|array $condition |
||
| 1335 | * @param array $params the binding parameters to be populated |
||
| 1336 | * @return string the HAVING clause built from [[Query::$having]]. |
||
| 1337 | */ |
||
| 1338 | 1153 | public function buildHaving($condition, &$params) |
|
| 1339 | { |
||
| 1340 | 1153 | $having = $this->buildCondition($condition, $params); |
|
| 1341 | |||
| 1342 | 1153 | return $having === '' ? '' : 'HAVING ' . $having; |
|
| 1343 | } |
||
| 1344 | |||
| 1345 | /** |
||
| 1346 | * Builds the ORDER BY and LIMIT/OFFSET clauses and appends them to the given SQL. |
||
| 1347 | * @param string $sql the existing SQL (without ORDER BY/LIMIT/OFFSET) |
||
| 1348 | * @param array $orderBy the order by columns. See [[Query::orderBy]] for more details on how to specify this parameter. |
||
| 1349 | * @param int $limit the limit number. See [[Query::limit]] for more details. |
||
| 1350 | * @param int $offset the offset number. See [[Query::offset]] for more details. |
||
| 1351 | * @return string the SQL completed with ORDER BY/LIMIT/OFFSET (if any) |
||
| 1352 | */ |
||
| 1353 | 1153 | public function buildOrderByAndLimit($sql, $orderBy, $limit, $offset) |
|
| 1354 | { |
||
| 1355 | 1153 | $orderBy = $this->buildOrderBy($orderBy); |
|
| 1356 | 1153 | if ($orderBy !== '') { |
|
| 1357 | 180 | $sql .= $this->separator . $orderBy; |
|
| 1358 | } |
||
| 1359 | 1153 | $limit = $this->buildLimit($limit, $offset); |
|
| 1360 | 1153 | if ($limit !== '') { |
|
| 1361 | 91 | $sql .= $this->separator . $limit; |
|
| 1362 | } |
||
| 1363 | |||
| 1364 | 1153 | return $sql; |
|
| 1365 | } |
||
| 1366 | |||
| 1367 | /** |
||
| 1368 | * @param array $columns |
||
| 1369 | * @return string the ORDER BY clause built from [[Query::$orderBy]]. |
||
| 1370 | */ |
||
| 1371 | 1153 | public function buildOrderBy($columns) |
|
| 1372 | { |
||
| 1373 | 1153 | if (empty($columns)) { |
|
| 1374 | 1118 | return ''; |
|
| 1375 | } |
||
| 1376 | 180 | $orders = []; |
|
| 1377 | 180 | foreach ($columns as $name => $direction) { |
|
| 1378 | 180 | if ($direction instanceof ExpressionInterface) { |
|
| 1379 | 3 | $orders[] = $this->buildExpression($direction); |
|
| 1380 | } else { |
||
| 1381 | 180 | $orders[] = $this->db->quoteColumnName($name) . ($direction === SORT_DESC ? ' DESC' : ''); |
|
| 1382 | } |
||
| 1383 | } |
||
| 1384 | |||
| 1385 | 180 | return 'ORDER BY ' . implode(', ', $orders); |
|
| 1386 | } |
||
| 1387 | |||
| 1388 | /** |
||
| 1389 | * @param int $limit |
||
| 1390 | * @param int $offset |
||
| 1391 | * @return string the LIMIT and OFFSET clauses |
||
| 1392 | */ |
||
| 1393 | 418 | public function buildLimit($limit, $offset) |
|
| 1394 | { |
||
| 1395 | 418 | $sql = ''; |
|
| 1396 | 418 | if ($this->hasLimit($limit)) { |
|
| 1397 | 25 | $sql = 'LIMIT ' . $limit; |
|
| 1398 | } |
||
| 1399 | 418 | if ($this->hasOffset($offset)) { |
|
| 1400 | 3 | $sql .= ' OFFSET ' . $offset; |
|
| 1401 | } |
||
| 1402 | |||
| 1403 | 418 | return ltrim($sql); |
|
| 1404 | } |
||
| 1405 | |||
| 1406 | /** |
||
| 1407 | * Checks to see if the given limit is effective. |
||
| 1408 | * @param mixed $limit the given limit |
||
| 1409 | * @return bool whether the limit is effective |
||
| 1410 | */ |
||
| 1411 | 757 | protected function hasLimit($limit) |
|
| 1412 | { |
||
| 1413 | 757 | return ($limit instanceof ExpressionInterface) || ctype_digit((string) $limit); |
|
| 1414 | } |
||
| 1415 | |||
| 1416 | /** |
||
| 1417 | * Checks to see if the given offset is effective. |
||
| 1418 | * @param mixed $offset the given offset |
||
| 1419 | * @return bool whether the offset is effective |
||
| 1420 | */ |
||
| 1421 | 757 | protected function hasOffset($offset) |
|
| 1422 | { |
||
| 1423 | 757 | return ($offset instanceof ExpressionInterface) || ctype_digit((string) $offset) && (string) $offset !== '0'; |
|
| 1424 | } |
||
| 1425 | |||
| 1426 | /** |
||
| 1427 | * @param array $unions |
||
| 1428 | * @param array $params the binding parameters to be populated |
||
| 1429 | * @return string the UNION clause built from [[Query::$union]]. |
||
| 1430 | */ |
||
| 1431 | 814 | public function buildUnion($unions, &$params) |
|
| 1432 | { |
||
| 1433 | 814 | if (empty($unions)) { |
|
| 1434 | 814 | return ''; |
|
| 1435 | } |
||
| 1436 | |||
| 1437 | 8 | $result = ''; |
|
| 1438 | |||
| 1439 | 8 | foreach ($unions as $i => $union) { |
|
| 1440 | 8 | $query = $union['query']; |
|
| 1441 | 8 | if ($query instanceof Query) { |
|
| 1442 | 8 | $unions[$i]['query'] = $this->buildExpression($query, $params); |
|
| 1443 | } |
||
| 1444 | |||
| 1445 | 8 | $result .= 'UNION ' . ($union['all'] ? 'ALL ' : '') . '( ' . $unions[$i]['query'] . ' ) '; |
|
| 1446 | } |
||
| 1447 | |||
| 1448 | 8 | return trim($result); |
|
| 1449 | } |
||
| 1450 | |||
| 1451 | /** |
||
| 1452 | * Processes columns and properly quotes them if necessary. |
||
| 1453 | * It will join all columns into a string with comma as separators. |
||
| 1454 | * @param string|array $columns the columns to be processed |
||
| 1455 | * @return string the processing result |
||
| 1456 | */ |
||
| 1457 | 32 | public function buildColumns($columns) |
|
| 1458 | { |
||
| 1459 | 32 | if (!is_array($columns)) { |
|
| 1460 | 27 | if (strpos($columns, '(') !== false) { |
|
| 1461 | return $columns; |
||
| 1462 | } |
||
| 1463 | |||
| 1464 | 27 | $rawColumns = $columns; |
|
| 1465 | 27 | $columns = preg_split('/\s*,\s*/', $columns, -1, PREG_SPLIT_NO_EMPTY); |
|
| 1466 | 27 | if ($columns === false) { |
|
| 1467 | throw new InvalidArgumentException("$rawColumns is not valid columns."); |
||
| 1468 | } |
||
| 1469 | } |
||
| 1470 | 32 | foreach ($columns as $i => $column) { |
|
| 1471 | 32 | if ($column instanceof ExpressionInterface) { |
|
| 1472 | $columns[$i] = $this->buildExpression($column); |
||
| 1473 | 32 | } elseif (strpos($column, '(') === false) { |
|
| 1474 | 32 | $columns[$i] = $this->db->quoteColumnName($column); |
|
| 1475 | } |
||
| 1476 | } |
||
| 1477 | |||
| 1478 | 32 | return implode(', ', $columns); |
|
| 1479 | } |
||
| 1480 | |||
| 1481 | /** |
||
| 1482 | * Parses the condition specification and generates the corresponding SQL expression. |
||
| 1483 | * @param string|array|ExpressionInterface $condition the condition specification. Please refer to [[Query::where()]] |
||
| 1484 | * on how to specify a condition. |
||
| 1485 | * @param array $params the binding parameters to be populated |
||
| 1486 | * @return string the generated SQL expression |
||
| 1487 | */ |
||
| 1488 | 1232 | public function buildCondition($condition, &$params) |
|
| 1489 | { |
||
| 1490 | 1232 | if (is_array($condition)) { |
|
| 1491 | 968 | if (empty($condition)) { |
|
| 1492 | 3 | return ''; |
|
| 1493 | } |
||
| 1494 | |||
| 1495 | 968 | $condition = $this->createConditionFromArray($condition); |
|
| 1496 | } |
||
| 1497 | |||
| 1498 | 1232 | if ($condition instanceof ExpressionInterface) { |
|
| 1499 | 989 | return $this->buildExpression($condition, $params); |
|
| 1500 | } |
||
| 1501 | |||
| 1502 | 1215 | return (string) $condition; |
|
| 1503 | } |
||
| 1504 | |||
| 1505 | /** |
||
| 1506 | * Transforms $condition defined in array format (as described in [[Query::where()]] |
||
| 1507 | * to instance of [[yii\db\condition\ConditionInterface|ConditionInterface]] according to |
||
| 1508 | * [[conditionClasses]] map. |
||
| 1509 | * |
||
| 1510 | * @param string|array $condition |
||
| 1511 | * @see conditionClasses |
||
| 1512 | * @return ConditionInterface |
||
| 1513 | * @since 2.0.14 |
||
| 1514 | */ |
||
| 1515 | 968 | public function createConditionFromArray($condition) |
|
| 1516 | { |
||
| 1517 | 968 | if (isset($condition[0])) { // operator format: operator, operand 1, operand 2, ... |
|
| 1518 | 584 | $operator = strtoupper(array_shift($condition)); |
|
| 1519 | 584 | if (isset($this->conditionClasses[$operator])) { |
|
| 1520 | 506 | $className = $this->conditionClasses[$operator]; |
|
| 1521 | } else { |
||
| 1522 | 84 | $className = 'yii\db\conditions\SimpleCondition'; |
|
| 1523 | } |
||
| 1524 | /** @var ConditionInterface $className */ |
||
| 1525 | 584 | return $className::fromArrayDefinition($operator, $condition); |
|
| 1526 | } |
||
| 1527 | |||
| 1528 | // hash format: 'column1' => 'value1', 'column2' => 'value2', ... |
||
| 1529 | 679 | return new HashCondition($condition); |
|
| 1530 | } |
||
| 1531 | |||
| 1532 | /** |
||
| 1533 | * Creates a condition based on column-value pairs. |
||
| 1534 | * @param array $condition the condition specification. |
||
| 1535 | * @param array $params the binding parameters to be populated |
||
| 1536 | * @return string the generated SQL expression |
||
| 1537 | * @deprecated since 2.0.14. Use `buildCondition()` instead. |
||
| 1538 | */ |
||
| 1539 | public function buildHashCondition($condition, &$params) |
||
| 1540 | { |
||
| 1541 | return $this->buildCondition(new HashCondition($condition), $params); |
||
| 1542 | } |
||
| 1543 | |||
| 1544 | /** |
||
| 1545 | * Connects two or more SQL expressions with the `AND` or `OR` operator. |
||
| 1546 | * @param string $operator the operator to use for connecting the given operands |
||
| 1547 | * @param array $operands the SQL expressions to connect. |
||
| 1548 | * @param array $params the binding parameters to be populated |
||
| 1549 | * @return string the generated SQL expression |
||
| 1550 | * @deprecated since 2.0.14. Use `buildCondition()` instead. |
||
| 1551 | */ |
||
| 1552 | public function buildAndCondition($operator, $operands, &$params) |
||
| 1553 | { |
||
| 1554 | array_unshift($operands, $operator); |
||
| 1555 | return $this->buildCondition($operands, $params); |
||
| 1556 | } |
||
| 1557 | |||
| 1558 | /** |
||
| 1559 | * Inverts an SQL expressions with `NOT` operator. |
||
| 1560 | * @param string $operator the operator to use for connecting the given operands |
||
| 1561 | * @param array $operands the SQL expressions to connect. |
||
| 1562 | * @param array $params the binding parameters to be populated |
||
| 1563 | * @return string the generated SQL expression |
||
| 1564 | * @throws InvalidArgumentException if wrong number of operands have been given. |
||
| 1565 | * @deprecated since 2.0.14. Use `buildCondition()` instead. |
||
| 1566 | */ |
||
| 1567 | public function buildNotCondition($operator, $operands, &$params) |
||
| 1572 | |||
| 1573 | /** |
||
| 1574 | * Creates an SQL expressions with the `BETWEEN` operator. |
||
| 1575 | * @param string $operator the operator to use (e.g. `BETWEEN` or `NOT BETWEEN`) |
||
| 1576 | * @param array $operands the first operand is the column name. The second and third operands |
||
| 1577 | * describe the interval that column value should be in. |
||
| 1578 | * @param array $params the binding parameters to be populated |
||
| 1579 | * @return string the generated SQL expression |
||
| 1580 | * @throws InvalidArgumentException if wrong number of operands have been given. |
||
| 1581 | * @deprecated since 2.0.14. Use `buildCondition()` instead. |
||
| 1582 | */ |
||
| 1583 | public function buildBetweenCondition($operator, $operands, &$params) |
||
| 1584 | { |
||
| 1585 | array_unshift($operands, $operator); |
||
| 1586 | return $this->buildCondition($operands, $params); |
||
| 1587 | } |
||
| 1588 | |||
| 1589 | /** |
||
| 1590 | * Creates an SQL expressions with the `IN` operator. |
||
| 1591 | * @param string $operator the operator to use (e.g. `IN` or `NOT IN`) |
||
| 1592 | * @param array $operands the first operand is the column name. If it is an array |
||
| 1593 | * a composite IN condition will be generated. |
||
| 1594 | * The second operand is an array of values that column value should be among. |
||
| 1595 | * If it is an empty array the generated expression will be a `false` value if |
||
| 1596 | * operator is `IN` and empty if operator is `NOT IN`. |
||
| 1597 | * @param array $params the binding parameters to be populated |
||
| 1598 | * @return string the generated SQL expression |
||
| 1599 | * @throws Exception if wrong number of operands have been given. |
||
| 1600 | * @deprecated since 2.0.14. Use `buildCondition()` instead. |
||
| 1601 | */ |
||
| 1602 | public function buildInCondition($operator, $operands, &$params) |
||
| 1603 | { |
||
| 1604 | array_unshift($operands, $operator); |
||
| 1605 | return $this->buildCondition($operands, $params); |
||
| 1606 | } |
||
| 1607 | |||
| 1608 | /** |
||
| 1609 | * Creates an SQL expressions with the `LIKE` operator. |
||
| 1610 | * @param string $operator the operator to use (e.g. `LIKE`, `NOT LIKE`, `OR LIKE` or `OR NOT LIKE`) |
||
| 1611 | * @param array $operands an array of two or three operands |
||
| 1612 | * |
||
| 1613 | * - The first operand is the column name. |
||
| 1614 | * - The second operand is a single value or an array of values that column value |
||
| 1615 | * should be compared with. If it is an empty array the generated expression will |
||
| 1616 | * be a `false` value if operator is `LIKE` or `OR LIKE`, and empty if operator |
||
| 1617 | * is `NOT LIKE` or `OR NOT LIKE`. |
||
| 1618 | * - An optional third operand can also be provided to specify how to escape special characters |
||
| 1619 | * in the value(s). The operand should be an array of mappings from the special characters to their |
||
| 1620 | * escaped counterparts. If this operand is not provided, a default escape mapping will be used. |
||
| 1621 | * You may use `false` or an empty array to indicate the values are already escaped and no escape |
||
| 1622 | * should be applied. Note that when using an escape mapping (or the third operand is not provided), |
||
| 1623 | * the values will be automatically enclosed within a pair of percentage characters. |
||
| 1624 | * @param array $params the binding parameters to be populated |
||
| 1625 | * @return string the generated SQL expression |
||
| 1626 | * @throws InvalidArgumentException if wrong number of operands have been given. |
||
| 1627 | * @deprecated since 2.0.14. Use `buildCondition()` instead. |
||
| 1628 | */ |
||
| 1629 | public function buildLikeCondition($operator, $operands, &$params) |
||
| 1630 | { |
||
| 1631 | array_unshift($operands, $operator); |
||
| 1632 | return $this->buildCondition($operands, $params); |
||
| 1633 | } |
||
| 1634 | |||
| 1635 | /** |
||
| 1636 | * Creates an SQL expressions with the `EXISTS` operator. |
||
| 1637 | * @param string $operator the operator to use (e.g. `EXISTS` or `NOT EXISTS`) |
||
| 1638 | * @param array $operands contains only one element which is a [[Query]] object representing the sub-query. |
||
| 1639 | * @param array $params the binding parameters to be populated |
||
| 1640 | * @return string the generated SQL expression |
||
| 1641 | * @throws InvalidArgumentException if the operand is not a [[Query]] object. |
||
| 1642 | * @deprecated since 2.0.14. Use `buildCondition()` instead. |
||
| 1643 | */ |
||
| 1644 | public function buildExistsCondition($operator, $operands, &$params) |
||
| 1649 | |||
| 1650 | /** |
||
| 1651 | * Creates an SQL expressions like `"column" operator value`. |
||
| 1652 | * @param string $operator the operator to use. Anything could be used e.g. `>`, `<=`, etc. |
||
| 1653 | * @param array $operands contains two column names. |
||
| 1654 | * @param array $params the binding parameters to be populated |
||
| 1655 | * @return string the generated SQL expression |
||
| 1656 | * @throws InvalidArgumentException if wrong number of operands have been given. |
||
| 1657 | * @deprecated since 2.0.14. Use `buildCondition()` instead. |
||
| 1658 | */ |
||
| 1659 | public function buildSimpleCondition($operator, $operands, &$params) |
||
| 1664 | |||
| 1665 | /** |
||
| 1666 | * Creates a SELECT EXISTS() SQL statement. |
||
| 1667 | * @param string $rawSql the subquery in a raw form to select from. |
||
| 1668 | * @return string the SELECT EXISTS() SQL statement. |
||
| 1669 | * @since 2.0.8 |
||
| 1670 | */ |
||
| 1671 | 67 | public function selectExists($rawSql) |
|
| 1675 | |||
| 1676 | /** |
||
| 1677 | * Helper method to add $value to $params array using [[PARAM_PREFIX]]. |
||
| 1678 | * |
||
| 1679 | * @param string|null $value |
||
| 1680 | * @param array $params passed by reference |
||
| 1681 | * @return string the placeholder name in $params array |
||
| 1682 | * |
||
| 1683 | * @since 2.0.14 |
||
| 1684 | */ |
||
| 1685 | 1020 | public function bindParam($value, &$params) |
|
| 1692 | } |
||
| 1693 |
Loading history...
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..