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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| 26 | class QueryBuilder extends \yii\base\Object |
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| 27 | { |
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| 28 | /** |
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| 29 | * The prefix for automatically generated query binding parameters. |
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| 30 | */ |
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| 31 | const PARAM_PREFIX = ':qp'; |
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| 32 | |||
| 33 | /** |
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| 34 | * @var Connection the database connection. |
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| 35 | */ |
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| 36 | public $db; |
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| 37 | /** |
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| 38 | * @var string the separator between different fragments of a SQL statement. |
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| 39 | * Defaults to an empty space. This is mainly used by [[build()]] when generating a SQL statement. |
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| 40 | */ |
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| 41 | public $separator = ' '; |
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| 42 | /** |
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| 43 | * @var array the abstract column types mapped to physical column types. |
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| 44 | * This is mainly used to support creating/modifying tables using DB-independent data type specifications. |
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| 45 | * Child classes should override this property to declare supported type mappings. |
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| 46 | */ |
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| 47 | public $typeMap = []; |
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| 48 | |||
| 49 | /** |
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| 50 | * @var array map of query condition to builder methods. |
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| 51 | * These methods are used by [[buildCondition]] to build SQL conditions from array syntax. |
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| 52 | */ |
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| 53 | protected $conditionBuilders = [ |
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| 54 | 'NOT' => 'buildNotCondition', |
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| 55 | 'AND' => 'buildAndCondition', |
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| 56 | 'OR' => 'buildAndCondition', |
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| 57 | 'BETWEEN' => 'buildBetweenCondition', |
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| 58 | 'NOT BETWEEN' => 'buildBetweenCondition', |
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| 59 | 'IN' => 'buildInCondition', |
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| 60 | 'NOT IN' => 'buildInCondition', |
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| 61 | 'LIKE' => 'buildLikeCondition', |
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| 62 | 'NOT LIKE' => 'buildLikeCondition', |
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| 63 | 'OR LIKE' => 'buildLikeCondition', |
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| 64 | 'OR NOT LIKE' => 'buildLikeCondition', |
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| 65 | 'EXISTS' => 'buildExistsCondition', |
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| 66 | 'NOT EXISTS' => 'buildExistsCondition', |
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| 67 | ]; |
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| 68 | |||
| 69 | |||
| 70 | /** |
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| 71 | * Constructor. |
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| 72 | * @param Connection $connection the database connection. |
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| 73 | * @param array $config name-value pairs that will be used to initialize the object properties |
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| 74 | */ |
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| 75 | 853 | public function __construct($connection, $config = []) |
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| 80 | |||
| 81 | /** |
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| 82 | * Generates a SELECT SQL statement from a [[Query]] object. |
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| 83 | * @param Query $query the [[Query]] object from which the SQL statement will be generated. |
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| 84 | * @param array $params the parameters to be bound to the generated SQL statement. These parameters will |
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| 85 | * be included in the result with the additional parameters generated during the query building process. |
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| 86 | * @return array the generated SQL statement (the first array element) and the corresponding |
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| 87 | * parameters to be bound to the SQL statement (the second array element). The parameters returned |
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| 88 | * include those provided in `$params`. |
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| 89 | */ |
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| 90 | 559 | public function build($query, $params = []) |
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| 130 | |||
| 131 | /** |
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| 132 | * Creates an INSERT SQL statement. |
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| 133 | * For example, |
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| 134 | * |
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| 135 | * ```php |
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| 136 | * $sql = $queryBuilder->insert('user', [ |
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| 137 | * 'name' => 'Sam', |
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| 138 | * 'age' => 30, |
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| 139 | * ], $params); |
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| 140 | * ``` |
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| 141 | * |
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| 142 | * The method will properly escape the table and column names. |
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| 143 | * |
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| 144 | * @param string $table the table that new rows will be inserted into. |
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| 145 | * @param array|\yii\db\Query $columns the column data (name => value) to be inserted into the table or instance |
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| 146 | * of [[yii\db\Query|Query]] to perform INSERT INTO ... SELECT SQL statement. |
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| 147 | * Passing of [[yii\db\Query|Query]] is available since version 2.0.11. |
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| 148 | * @param array $params the binding parameters that will be generated by this method. |
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| 149 | * They should be bound to the DB command later. |
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| 150 | * @return string the INSERT SQL |
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| 151 | */ |
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| 152 | 118 | public function insert($table, $columns, &$params) |
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| 153 | { |
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| 154 | 118 | $schema = $this->db->getSchema(); |
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| 155 | 118 | if (($tableSchema = $schema->getTableSchema($table)) !== null) { |
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| 156 | 113 | $columnSchemas = $tableSchema->columns; |
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| 157 | 113 | } else { |
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| 158 | 19 | $columnSchemas = []; |
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| 159 | } |
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| 160 | 118 | $names = []; |
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| 161 | 118 | $placeholders = []; |
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| 162 | 118 | $values = ' DEFAULT VALUES'; |
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| 163 | 118 | if ($columns instanceof \yii\db\Query) { |
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| 164 | 10 | list($names, $values) = $this->prepareInsertSelectSubQuery($columns, $schema); |
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| 165 | 4 | } else { |
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| 166 | 112 | foreach ($columns as $name => $value) { |
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| 167 | 110 | $names[] = $schema->quoteColumnName($name); |
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| 168 | 110 | if ($value instanceof Expression) { |
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| 169 | 4 | $placeholders[] = $value->expression; |
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| 170 | 4 | foreach ($value->params as $n => $v) { |
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| 171 | 1 | $params[$n] = $v; |
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| 172 | 4 | } |
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| 173 | 111 | } elseif ($value instanceof \yii\db\Query) { |
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| 174 | 2 | list($sql, $params) = $this->build($value, $params); |
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| 175 | 2 | $placeholders[] = "($sql)"; |
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| 176 | 2 | } else { |
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| 177 | 108 | $phName = self::PARAM_PREFIX . count($params); |
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| 178 | 108 | $placeholders[] = $phName; |
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| 179 | 108 | $params[$phName] = !is_array($value) && isset($columnSchemas[$name]) ? $columnSchemas[$name]->dbTypecast($value) : $value; |
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| 180 | } |
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| 181 | 112 | } |
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| 182 | } |
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| 183 | |||
| 184 | 112 | return 'INSERT INTO ' . $schema->quoteTableName($table) |
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| 185 | 112 | . (!empty($names) ? ' (' . implode(', ', $names) . ')' : '') |
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| 186 | 112 | . (!empty($placeholders) ? ' VALUES (' . implode(', ', $placeholders) . ')' : $values); |
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| 187 | } |
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| 188 | |||
| 189 | /** |
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| 190 | * Prepare select-subquery and field names for INSERT INTO ... SELECT SQL statement. |
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| 191 | * |
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| 192 | * @param \yii\db\Query $columns Object, which represents select query |
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| 193 | * @param \yii\db\Schema $schema Schema object to qoute column name |
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| 194 | * @return array |
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| 195 | * @since 2.0.11 |
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| 196 | */ |
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| 197 | 15 | protected function prepareInsertSelectSubQuery($columns, $schema) |
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| 218 | |||
| 219 | /** |
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| 220 | * Generates a batch INSERT SQL statement. |
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| 221 | * For example, |
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| 222 | * |
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| 223 | * ```php |
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| 224 | * $sql = $queryBuilder->batchInsert('user', ['name', 'age'], [ |
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| 225 | * ['Tom', 30], |
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| 226 | * ['Jane', 20], |
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| 227 | * ['Linda', 25], |
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| 228 | * ]); |
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| 229 | * ``` |
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| 230 | * |
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| 231 | * Note that the values in each row must match the corresponding column names. |
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| 232 | * |
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| 233 | * The method will properly escape the column names, and quote the values to be inserted. |
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| 234 | * |
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| 235 | * @param string $table the table that new rows will be inserted into. |
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| 236 | * @param array $columns the column names |
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| 237 | * @param array $rows the rows to be batch inserted into the table |
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| 238 | * @return string the batch INSERT SQL statement |
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| 239 | */ |
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| 240 | 18 | public function batchInsert($table, $columns, $rows) |
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| 282 | |||
| 283 | /** |
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| 284 | * Creates an UPDATE SQL statement. |
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| 285 | * For example, |
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| 286 | * |
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| 287 | * ```php |
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| 288 | * $params = []; |
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| 289 | * $sql = $queryBuilder->update('user', ['status' => 1], 'age > 30', $params); |
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| 290 | * ``` |
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| 291 | * |
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| 292 | * The method will properly escape the table and column names. |
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| 293 | * |
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| 294 | * @param string $table the table to be updated. |
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| 295 | * @param array $columns the column data (name => value) to be updated. |
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| 296 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
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| 297 | * refer to [[Query::where()]] on how to specify condition. |
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| 298 | * @param array $params the binding parameters that will be modified by this method |
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| 299 | * so that they can be bound to the DB command later. |
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| 300 | * @return string the UPDATE SQL |
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| 301 | */ |
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| 302 | 74 | public function update($table, $columns, $condition, &$params) |
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| 329 | |||
| 330 | /** |
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| 331 | * Creates a DELETE SQL statement. |
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| 332 | * For example, |
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| 333 | * |
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| 334 | * ```php |
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| 335 | * $sql = $queryBuilder->delete('user', 'status = 0'); |
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| 336 | * ``` |
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| 337 | * |
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| 338 | * The method will properly escape the table and column names. |
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| 339 | * |
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| 340 | * @param string $table the table where the data will be deleted from. |
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| 341 | * @param array|string $condition the condition that will be put in the WHERE part. Please |
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| 342 | * refer to [[Query::where()]] on how to specify condition. |
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| 343 | * @param array $params the binding parameters that will be modified by this method |
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| 344 | * so that they can be bound to the DB command later. |
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| 345 | * @return string the DELETE SQL |
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| 346 | */ |
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| 347 | 152 | public function delete($table, $condition, &$params) |
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| 348 | 1 | { |
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| 349 | 151 | $sql = 'DELETE FROM ' . $this->db->quoteTableName($table); |
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| 350 | 152 | $where = $this->buildWhere($condition, $params); |
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| 351 | |||
| 352 | 151 | return $where === '' ? $sql : $sql . ' ' . $where; |
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| 353 | } |
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| 354 | |||
| 355 | /** |
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| 356 | * Builds a SQL statement for creating a new DB table. |
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| 357 | * |
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| 358 | * The columns in the new table should be specified as name-definition pairs (e.g. 'name' => 'string'), |
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| 359 | * where name stands for a column name which will be properly quoted by the method, and definition |
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| 360 | * stands for the column type which can contain an abstract DB type. |
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| 361 | * The [[getColumnType()]] method will be invoked to convert any abstract type into a physical one. |
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| 362 | * |
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| 363 | * If a column is specified with definition only (e.g. 'PRIMARY KEY (name, type)'), it will be directly |
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| 364 | * inserted into the generated SQL. |
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| 365 | * |
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| 366 | * For example, |
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| 367 | * |
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| 368 | * ```php |
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| 369 | * $sql = $queryBuilder->createTable('user', [ |
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| 370 | * 'id' => 'pk', |
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| 371 | * 'name' => 'string', |
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| 372 | * 'age' => 'integer', |
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| 373 | * ]); |
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| 374 | * ``` |
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| 375 | * |
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| 376 | * @param string $table the name of the table to be created. The name will be properly quoted by the method. |
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| 377 | * @param array $columns the columns (name => definition) in the new table. |
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| 378 | * @param string $options additional SQL fragment that will be appended to the generated SQL. |
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| 379 | * @return string the SQL statement for creating a new DB table. |
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| 380 | */ |
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| 381 | 68 | public function createTable($table, $columns, $options = null) |
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| 395 | |||
| 396 | /** |
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| 397 | * Builds a SQL statement for renaming a DB table. |
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| 398 | * @param string $oldName the table to be renamed. The name will be properly quoted by the method. |
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| 399 | * @param string $newName the new table name. The name will be properly quoted by the method. |
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| 400 | * @return string the SQL statement for renaming a DB table. |
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| 401 | */ |
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| 402 | 1 | public function renameTable($oldName, $newName) |
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| 406 | |||
| 407 | /** |
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| 408 | * Builds a SQL statement for dropping a DB table. |
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| 409 | * @param string $table the table to be dropped. The name will be properly quoted by the method. |
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| 410 | * @return string the SQL statement for dropping a DB table. |
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| 411 | */ |
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| 412 | 11 | public function dropTable($table) |
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| 416 | |||
| 417 | /** |
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| 418 | * Builds a SQL statement for adding a primary key constraint to an existing table. |
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| 419 | * @param string $name the name of the primary key constraint. |
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| 420 | * @param string $table the table that the primary key constraint will be added to. |
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| 421 | * @param string|array $columns comma separated string or array of columns that the primary key will consist of. |
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| 422 | * @return string the SQL statement for adding a primary key constraint to an existing table. |
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| 423 | */ |
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| 424 | 2 | public function addPrimaryKey($name, $table, $columns) |
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| 438 | |||
| 439 | /** |
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| 440 | * Builds a SQL statement for removing a primary key constraint to an existing table. |
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| 441 | * @param string $name the name of the primary key constraint to be removed. |
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| 442 | * @param string $table the table that the primary key constraint will be removed from. |
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| 443 | * @return string the SQL statement for removing a primary key constraint from an existing table. |
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| 444 | */ |
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| 445 | 1 | public function dropPrimaryKey($name, $table) |
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| 450 | |||
| 451 | /** |
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| 452 | * Builds a SQL statement for truncating a DB table. |
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| 453 | * @param string $table the table to be truncated. The name will be properly quoted by the method. |
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| 454 | * @return string the SQL statement for truncating a DB table. |
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| 455 | */ |
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| 456 | 6 | public function truncateTable($table) |
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| 460 | |||
| 461 | /** |
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| 462 | * Builds a SQL statement for adding a new DB column. |
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| 463 | * @param string $table the table that the new column will be added to. The table name will be properly quoted by the method. |
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| 464 | * @param string $column the name of the new column. The name will be properly quoted by the method. |
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| 465 | * @param string $type the column type. The [[getColumnType()]] method will be invoked to convert abstract column type (if any) |
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| 466 | * into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL. |
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| 467 | * For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'. |
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| 468 | * @return string the SQL statement for adding a new column. |
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| 469 | */ |
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| 470 | 4 | public function addColumn($table, $column, $type) |
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| 476 | |||
| 477 | /** |
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| 478 | * Builds a SQL statement for dropping a DB column. |
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| 479 | * @param string $table the table whose column is to be dropped. The name will be properly quoted by the method. |
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| 480 | * @param string $column the name of the column to be dropped. The name will be properly quoted by the method. |
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| 481 | * @return string the SQL statement for dropping a DB column. |
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| 482 | */ |
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| 483 | public function dropColumn($table, $column) |
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| 488 | |||
| 489 | /** |
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| 490 | * Builds a SQL statement for renaming a column. |
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| 491 | * @param string $table the table whose column is to be renamed. The name will be properly quoted by the method. |
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| 492 | * @param string $oldName the old name of the column. The name will be properly quoted by the method. |
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| 493 | * @param string $newName the new name of the column. The name will be properly quoted by the method. |
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| 494 | * @return string the SQL statement for renaming a DB column. |
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| 495 | */ |
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| 496 | public function renameColumn($table, $oldName, $newName) |
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| 502 | |||
| 503 | /** |
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| 504 | * Builds a SQL statement for changing the definition of a column. |
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| 505 | * @param string $table the table whose column is to be changed. The table name will be properly quoted by the method. |
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| 506 | * @param string $column the name of the column to be changed. The name will be properly quoted by the method. |
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| 507 | * @param string $type the new column type. The [[getColumnType()]] method will be invoked to convert abstract |
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| 508 | * column type (if any) into the physical one. Anything that is not recognized as abstract type will be kept |
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| 509 | * in the generated SQL. For example, 'string' will be turned into 'varchar(255)', while 'string not null' |
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| 510 | * will become 'varchar(255) not null'. |
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| 511 | * @return string the SQL statement for changing the definition of a column. |
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| 512 | */ |
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| 513 | 1 | public function alterColumn($table, $column, $type) |
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| 520 | |||
| 521 | /** |
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| 522 | * Builds a SQL statement for adding a foreign key constraint to an existing table. |
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| 523 | * The method will properly quote the table and column names. |
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| 524 | * @param string $name the name of the foreign key constraint. |
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| 525 | * @param string $table the table that the foreign key constraint will be added to. |
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| 526 | * @param string|array $columns the name of the column to that the constraint will be added on. |
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| 527 | * If there are multiple columns, separate them with commas or use an array to represent them. |
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| 528 | * @param string $refTable the table that the foreign key references to. |
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| 529 | * @param string|array $refColumns the name of the column that the foreign key references to. |
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| 530 | * If there are multiple columns, separate them with commas or use an array to represent them. |
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| 531 | * @param string $delete the ON DELETE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
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| 532 | * @param string $update the ON UPDATE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL |
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| 533 | * @return string the SQL statement for adding a foreign key constraint to an existing table. |
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| 534 | */ |
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| 535 | public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null) |
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| 551 | |||
| 552 | /** |
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| 553 | * Builds a SQL statement for dropping a foreign key constraint. |
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| 554 | * @param string $name the name of the foreign key constraint to be dropped. The name will be properly quoted by the method. |
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| 555 | * @param string $table the table whose foreign is to be dropped. The name will be properly quoted by the method. |
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| 556 | * @return string the SQL statement for dropping a foreign key constraint. |
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| 557 | */ |
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| 558 | public function dropForeignKey($name, $table) |
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| 563 | |||
| 564 | /** |
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| 565 | * Builds a SQL statement for creating a new index. |
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| 566 | * @param string $name the name of the index. The name will be properly quoted by the method. |
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| 567 | * @param string $table the table that the new index will be created for. The table name will be properly quoted by the method. |
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| 568 | * @param string|array $columns the column(s) that should be included in the index. If there are multiple columns, |
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| 569 | * separate them with commas or use an array to represent them. Each column name will be properly quoted |
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| 570 | * by the method, unless a parenthesis is found in the name. |
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| 571 | * @param bool $unique whether to add UNIQUE constraint on the created index. |
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| 572 | * @return string the SQL statement for creating a new index. |
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| 573 | */ |
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| 574 | 1 | public function createIndex($name, $table, $columns, $unique = false) |
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| 581 | |||
| 582 | /** |
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| 583 | * Builds a SQL statement for dropping an index. |
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| 584 | * @param string $name the name of the index to be dropped. The name will be properly quoted by the method. |
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| 585 | * @param string $table the table whose index is to be dropped. The name will be properly quoted by the method. |
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| 586 | * @return string the SQL statement for dropping an index. |
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| 587 | */ |
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| 588 | public function dropIndex($name, $table) |
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| 592 | |||
| 593 | /** |
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| 594 | * Creates a SQL statement for resetting the sequence value of a table's primary key. |
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| 595 | * The sequence will be reset such that the primary key of the next new row inserted |
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| 596 | * will have the specified value or 1. |
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| 597 | * @param string $table the name of the table whose primary key sequence will be reset |
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| 598 | * @param array|string $value the value for the primary key of the next new row inserted. If this is not set, |
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| 599 | * the next new row's primary key will have a value 1. |
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| 600 | * @return string the SQL statement for resetting sequence |
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| 601 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
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| 602 | */ |
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| 603 | public function resetSequence($table, $value = null) |
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| 607 | |||
| 608 | /** |
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| 609 | * Builds a SQL statement for enabling or disabling integrity check. |
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| 610 | * @param bool $check whether to turn on or off the integrity check. |
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| 611 | * @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema. |
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| 612 | * @param string $table the table name. Defaults to empty string, meaning that no table will be changed. |
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| 613 | * @return string the SQL statement for checking integrity |
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| 614 | * @throws NotSupportedException if this is not supported by the underlying DBMS |
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| 615 | */ |
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| 616 | public function checkIntegrity($check = true, $schema = '', $table = '') |
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| 620 | |||
| 621 | /** |
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| 622 | * Builds a SQL command for adding comment to column |
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| 623 | * |
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| 624 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
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| 625 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
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| 626 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
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| 627 | * @return string the SQL statement for adding comment on column |
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| 628 | * @since 2.0.8 |
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| 629 | */ |
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| 630 | 1 | public function addCommentOnColumn($table, $column, $comment) |
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| 635 | |||
| 636 | /** |
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| 637 | * Builds a SQL command for adding comment to table |
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| 638 | * |
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| 639 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
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| 640 | * @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
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| 641 | * @return string the SQL statement for adding comment on table |
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| 642 | * @since 2.0.8 |
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| 643 | */ |
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| 644 | 1 | public function addCommentOnTable($table, $comment) |
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| 648 | |||
| 649 | /** |
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| 650 | * Builds a SQL command for adding comment to column |
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| 651 | * |
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| 652 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
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| 653 | * @param string $column the name of the column to be commented. The column name will be properly quoted by the method. |
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| 654 | * @return string the SQL statement for adding comment on column |
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| 655 | * @since 2.0.8 |
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| 656 | */ |
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| 657 | 1 | public function dropCommentFromColumn($table, $column) |
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| 661 | |||
| 662 | /** |
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| 663 | * Builds a SQL command for adding comment to table |
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| 664 | * |
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| 665 | * @param string $table the table whose column is to be commented. The table name will be properly quoted by the method. |
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| 666 | * @return string the SQL statement for adding comment on column |
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| 667 | * @since 2.0.8 |
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| 668 | */ |
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| 669 | 1 | public function dropCommentFromTable($table) |
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| 673 | |||
| 674 | /** |
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| 675 | * Converts an abstract column type into a physical column type. |
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| 676 | * The conversion is done using the type map specified in [[typeMap]]. |
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| 677 | * The following abstract column types are supported (using MySQL as an example to explain the corresponding |
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| 678 | * physical types): |
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| 679 | * |
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| 680 | * - `pk`: an auto-incremental primary key type, will be converted into "int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
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| 681 | * - `bigpk`: an auto-incremental primary key type, will be converted into "bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY" |
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| 682 | * - `unsignedpk`: an unsigned auto-incremental primary key type, will be converted into "int(11) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY" |
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| 683 | * - `char`: char type, will be converted into "char(1)" |
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| 684 | * - `string`: string type, will be converted into "varchar(255)" |
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| 685 | * - `text`: a long string type, will be converted into "text" |
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| 686 | * - `smallint`: a small integer type, will be converted into "smallint(6)" |
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| 687 | * - `integer`: integer type, will be converted into "int(11)" |
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| 688 | * - `bigint`: a big integer type, will be converted into "bigint(20)" |
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| 689 | * - `boolean`: boolean type, will be converted into "tinyint(1)" |
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| 690 | * - `float``: float number type, will be converted into "float" |
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| 691 | * - `decimal`: decimal number type, will be converted into "decimal" |
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| 692 | * - `datetime`: datetime type, will be converted into "datetime" |
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| 693 | * - `timestamp`: timestamp type, will be converted into "timestamp" |
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| 694 | * - `time`: time type, will be converted into "time" |
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| 695 | * - `date`: date type, will be converted into "date" |
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| 696 | * - `money`: money type, will be converted into "decimal(19,4)" |
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| 697 | * - `binary`: binary data type, will be converted into "blob" |
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| 698 | * |
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| 699 | * If the abstract type contains two or more parts separated by spaces (e.g. "string NOT NULL"), then only |
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| 700 | * the first part will be converted, and the rest of the parts will be appended to the converted result. |
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| 701 | * For example, 'string NOT NULL' is converted to 'varchar(255) NOT NULL'. |
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| 702 | * |
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| 703 | * For some of the abstract types you can also specify a length or precision constraint |
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| 704 | * by appending it in round brackets directly to the type. |
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| 705 | * For example `string(32)` will be converted into "varchar(32)" on a MySQL database. |
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| 706 | * If the underlying DBMS does not support these kind of constraints for a type it will |
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| 707 | * be ignored. |
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| 708 | * |
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| 709 | * If a type cannot be found in [[typeMap]], it will be returned without any change. |
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| 710 | * @param string|ColumnSchemaBuilder $type abstract column type |
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| 711 | * @return string physical column type. |
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| 712 | */ |
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| 713 | 71 | public function getColumnType($type) |
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| 733 | |||
| 734 | /** |
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| 735 | * @param array $columns |
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| 736 | * @param array $params the binding parameters to be populated |
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| 737 | * @param bool $distinct |
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| 738 | * @param string $selectOption |
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| 739 | * @return string the SELECT clause built from [[Query::$select]]. |
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| 740 | */ |
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| 741 | 800 | public function buildSelect($columns, &$params, $distinct = false, $selectOption = null) |
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| 779 | |||
| 780 | /** |
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| 781 | * @param array $tables |
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| 782 | * @param array $params the binding parameters to be populated |
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| 783 | * @return string the FROM clause built from [[Query::$from]]. |
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| 784 | */ |
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| 785 | 800 | public function buildFrom($tables, &$params) |
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| 795 | |||
| 796 | /** |
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| 797 | * @param array $joins |
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| 798 | * @param array $params the binding parameters to be populated |
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| 799 | * @return string the JOIN clause built from [[Query::$join]]. |
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| 800 | * @throws Exception if the $joins parameter is not in proper format |
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| 801 | */ |
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| 802 | 800 | public function buildJoin($joins, &$params) |
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| 827 | |||
| 828 | /** |
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| 829 | * Quotes table names passed |
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| 830 | * |
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| 831 | * @param array $tables |
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| 832 | * @param array $params |
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| 833 | * @return array |
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| 834 | */ |
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| 835 | 551 | private function quoteTableNames($tables, &$params) |
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| 856 | |||
| 857 | /** |
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| 858 | * @param string|array $condition |
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| 859 | * @param array $params the binding parameters to be populated |
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| 860 | * @return string the WHERE clause built from [[Query::$where]]. |
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| 861 | */ |
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| 862 | 818 | public function buildWhere($condition, &$params) |
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| 868 | |||
| 869 | /** |
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| 870 | * @param array $columns |
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| 871 | * @return string the GROUP BY clause |
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| 872 | */ |
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| 873 | 800 | public function buildGroupBy($columns) |
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| 887 | |||
| 888 | /** |
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| 889 | * @param string|array $condition |
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| 890 | * @param array $params the binding parameters to be populated |
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| 891 | * @return string the HAVING clause built from [[Query::$having]]. |
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| 892 | */ |
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| 893 | 800 | public function buildHaving($condition, &$params) |
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| 899 | |||
| 900 | /** |
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| 901 | * Builds the ORDER BY and LIMIT/OFFSET clauses and appends them to the given SQL. |
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| 902 | * @param string $sql the existing SQL (without ORDER BY/LIMIT/OFFSET) |
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| 903 | * @param array $orderBy the order by columns. See [[Query::orderBy]] for more details on how to specify this parameter. |
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| 904 | * @param int $limit the limit number. See [[Query::limit]] for more details. |
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| 905 | * @param int $offset the offset number. See [[Query::offset]] for more details. |
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| 906 | * @return string the SQL completed with ORDER BY/LIMIT/OFFSET (if any) |
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| 907 | */ |
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| 908 | 800 | public function buildOrderByAndLimit($sql, $orderBy, $limit, $offset) |
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| 920 | |||
| 921 | /** |
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| 922 | * @param array $columns |
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| 923 | * @return string the ORDER BY clause built from [[Query::$orderBy]]. |
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| 924 | */ |
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| 925 | 800 | public function buildOrderBy($columns) |
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| 941 | |||
| 942 | /** |
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| 943 | * @param int $limit |
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| 944 | * @param int $offset |
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| 945 | * @return string the LIMIT and OFFSET clauses |
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| 946 | */ |
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| 947 | 233 | public function buildLimit($limit, $offset) |
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| 959 | |||
| 960 | /** |
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| 961 | * Checks to see if the given limit is effective. |
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| 962 | * @param mixed $limit the given limit |
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| 963 | * @return bool whether the limit is effective |
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| 964 | */ |
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| 965 | 474 | protected function hasLimit($limit) |
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| 969 | |||
| 970 | /** |
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| 971 | * Checks to see if the given offset is effective. |
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| 972 | * @param mixed $offset the given offset |
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| 973 | * @return bool whether the offset is effective |
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| 974 | */ |
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| 975 | 474 | protected function hasOffset($offset) |
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| 979 | |||
| 980 | /** |
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| 981 | * @param array $unions |
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| 982 | * @param array $params the binding parameters to be populated |
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| 983 | * @return string the UNION clause built from [[Query::$union]]. |
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| 984 | */ |
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| 985 | 559 | public function buildUnion($unions, &$params) |
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| 1004 | |||
| 1005 | /** |
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| 1006 | * Processes columns and properly quotes them if necessary. |
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| 1007 | * It will join all columns into a string with comma as separators. |
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| 1008 | * @param string|array $columns the columns to be processed |
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| 1009 | * @return string the processing result |
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| 1010 | */ |
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| 1011 | 3 | public function buildColumns($columns) |
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| 1030 | |||
| 1031 | /** |
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| 1032 | * Parses the condition specification and generates the corresponding SQL expression. |
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| 1033 | * @param string|array|Expression $condition the condition specification. Please refer to [[Query::where()]] |
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| 1034 | * on how to specify a condition. |
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| 1035 | * @param array $params the binding parameters to be populated |
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| 1036 | * @return string the generated SQL expression |
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| 1037 | */ |
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| 1038 | 818 | public function buildCondition($condition, &$params) |
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| 1064 | |||
| 1065 | /** |
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| 1066 | * Creates a condition based on column-value pairs. |
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| 1067 | * @param array $condition the condition specification. |
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| 1068 | * @param array $params the binding parameters to be populated |
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| 1069 | * @return string the generated SQL expression |
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| 1070 | */ |
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| 1071 | 414 | public function buildHashCondition($condition, &$params) |
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| 1098 | |||
| 1099 | /** |
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| 1100 | * Connects two or more SQL expressions with the `AND` or `OR` operator. |
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| 1101 | * @param string $operator the operator to use for connecting the given operands |
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| 1102 | * @param array $operands the SQL expressions to connect. |
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| 1103 | * @param array $params the binding parameters to be populated |
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| 1104 | * @return string the generated SQL expression |
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| 1105 | */ |
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| 1106 | 151 | public function buildAndCondition($operator, $operands, &$params) |
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| 1129 | |||
| 1130 | /** |
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| 1131 | * Inverts an SQL expressions with `NOT` operator. |
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| 1132 | * @param string $operator the operator to use for connecting the given operands |
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| 1133 | * @param array $operands the SQL expressions to connect. |
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| 1134 | * @param array $params the binding parameters to be populated |
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| 1135 | * @return string the generated SQL expression |
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| 1136 | * @throws InvalidParamException if wrong number of operands have been given. |
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| 1137 | */ |
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| 1138 | 3 | public function buildNotCondition($operator, $operands, &$params) |
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| 1154 | |||
| 1155 | /** |
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| 1156 | * Creates an SQL expressions with the `BETWEEN` operator. |
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| 1157 | * @param string $operator the operator to use (e.g. `BETWEEN` or `NOT BETWEEN`) |
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| 1158 | * @param array $operands the first operand is the column name. The second and third operands |
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| 1159 | * describe the interval that column value should be in. |
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| 1160 | * @param array $params the binding parameters to be populated |
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| 1161 | * @return string the generated SQL expression |
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| 1162 | * @throws InvalidParamException if wrong number of operands have been given. |
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| 1163 | */ |
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| 1164 | 21 | public function buildBetweenCondition($operator, $operands, &$params) |
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| 1196 | |||
| 1197 | /** |
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| 1198 | * Creates an SQL expressions with the `IN` operator. |
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| 1199 | * @param string $operator the operator to use (e.g. `IN` or `NOT IN`) |
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| 1200 | * @param array $operands the first operand is the column name. If it is an array |
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| 1201 | * a composite IN condition will be generated. |
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| 1202 | * The second operand is an array of values that column value should be among. |
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| 1203 | * If it is an empty array the generated expression will be a `false` value if |
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| 1204 | * operator is `IN` and empty if operator is `NOT IN`. |
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| 1205 | * @param array $params the binding parameters to be populated |
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| 1206 | * @return string the generated SQL expression |
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| 1207 | * @throws Exception if wrong number of operands have been given. |
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| 1208 | */ |
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| 1209 | 214 | public function buildInCondition($operator, $operands, &$params) |
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| 1270 | |||
| 1271 | /** |
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| 1272 | * Builds SQL for IN condition |
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| 1273 | * |
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| 1274 | * @param string $operator |
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| 1275 | * @param array $columns |
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| 1276 | * @param Query $values |
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| 1277 | * @param array $params |
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| 1278 | * @return string SQL |
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| 1279 | */ |
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| 1280 | 14 | protected function buildSubqueryInCondition($operator, $columns, $values, &$params) |
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| 1297 | |||
| 1298 | /** |
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| 1299 | * Builds SQL for IN condition |
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| 1300 | * |
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| 1301 | * @param string $operator |
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| 1302 | * @param array|\Traversable $columns |
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| 1303 | * @param array $values |
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| 1304 | * @param array $params |
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| 1305 | * @return string SQL |
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| 1306 | */ |
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| 1307 | 10 | protected function buildCompositeInCondition($operator, $columns, $values, &$params) |
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| 1335 | |||
| 1336 | /** |
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| 1337 | * Creates an SQL expressions with the `LIKE` operator. |
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| 1338 | * @param string $operator the operator to use (e.g. `LIKE`, `NOT LIKE`, `OR LIKE` or `OR NOT LIKE`) |
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| 1339 | * @param array $operands an array of two or three operands |
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| 1340 | * |
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| 1341 | * - The first operand is the column name. |
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| 1342 | * - The second operand is a single value or an array of values that column value |
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| 1343 | * should be compared with. If it is an empty array the generated expression will |
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| 1344 | * be a `false` value if operator is `LIKE` or `OR LIKE`, and empty if operator |
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| 1345 | * is `NOT LIKE` or `OR NOT LIKE`. |
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| 1346 | * - An optional third operand can also be provided to specify how to escape special characters |
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| 1347 | * in the value(s). The operand should be an array of mappings from the special characters to their |
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| 1348 | * escaped counterparts. If this operand is not provided, a default escape mapping will be used. |
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| 1349 | * You may use `false` or an empty array to indicate the values are already escaped and no escape |
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| 1350 | * should be applied. Note that when using an escape mapping (or the third operand is not provided), |
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| 1351 | * the values will be automatically enclosed within a pair of percentage characters. |
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| 1352 | * @param array $params the binding parameters to be populated |
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| 1353 | * @return string the generated SQL expression |
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| 1354 | * @throws InvalidParamException if wrong number of operands have been given. |
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| 1355 | */ |
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| 1356 | 72 | public function buildLikeCondition($operator, $operands, &$params) |
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| 1402 | |||
| 1403 | /** |
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| 1404 | * Creates an SQL expressions with the `EXISTS` operator. |
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| 1405 | * @param string $operator the operator to use (e.g. `EXISTS` or `NOT EXISTS`) |
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| 1406 | * @param array $operands contains only one element which is a [[Query]] object representing the sub-query. |
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| 1407 | * @param array $params the binding parameters to be populated |
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| 1408 | * @return string the generated SQL expression |
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| 1409 | * @throws InvalidParamException if the operand is not a [[Query]] object. |
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| 1410 | */ |
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| 1411 | 18 | public function buildExistsCondition($operator, $operands, &$params) |
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| 1420 | |||
| 1421 | /** |
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| 1422 | * Creates an SQL expressions like `"column" operator value`. |
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| 1423 | * @param string $operator the operator to use. Anything could be used e.g. `>`, `<=`, etc. |
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| 1424 | * @param array $operands contains two column names. |
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| 1425 | * @param array $params the binding parameters to be populated |
||
| 1426 | * @return string the generated SQL expression |
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| 1427 | * @throws InvalidParamException if wrong number of operands have been given. |
||
| 1428 | */ |
||
| 1429 | 30 | public function buildSimpleCondition($operator, $operands, &$params) |
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| 1457 | |||
| 1458 | /** |
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| 1459 | * Creates a SELECT EXISTS() SQL statement. |
||
| 1460 | * @param string $rawSql the subquery in a raw form to select from. |
||
| 1461 | * @return string the SELECT EXISTS() SQL statement. |
||
| 1462 | * @since 2.0.8 |
||
| 1463 | */ |
||
| 1464 | 53 | public function selectExists($rawSql) |
|
| 1468 | } |
||
| 1469 |
