lenevor /
syscodes
| Total Complexity | 96 |
| Total Lines | 989 |
| Duplicated Lines | 0 % |
| Changes | 2 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Grammar 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.
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 Grammar, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 32 | class Grammar extends BaseGrammar |
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| 33 | { |
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| 34 | /** |
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| 35 | * Get the components for use a select statement. |
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| 36 | * |
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| 37 | * @var array $components |
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| 38 | */ |
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| 39 | protected $components = [ |
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| 40 | 'aggregate', |
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| 41 | 'columns', |
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| 42 | 'from', |
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| 43 | 'joins', |
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| 44 | 'wheres', |
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| 45 | 'groups', |
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| 46 | 'havings', |
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| 47 | 'orders', |
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| 48 | 'limit', |
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| 49 | 'offset', |
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| 50 | 'unions' |
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| 51 | ]; |
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| 52 | |||
| 53 | /** |
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| 54 | * Compile a select query into sql. |
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| 55 | * |
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| 56 | * @param \Syscodes\Database\Query\Builder $builder |
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| 57 | * |
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| 58 | * @return string |
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| 59 | */ |
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| 60 | public function compileSelect(Builder $builder) |
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| 61 | { |
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| 62 | if (is_null($builder->columns)) { |
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|
introduced
by
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| 63 | $builder->columns = ['*']; |
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| 64 | } |
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| 65 | |||
| 66 | return trim($this->concatenate($this->compileComponents($builder))); |
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| 67 | } |
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| 68 | |||
| 69 | /** |
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| 70 | * Compile the components necessary for a select clause. |
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| 71 | * |
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| 72 | * @param \Syscodes\Database\Query\Builder $builder |
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| 73 | * |
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| 74 | * @return array |
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| 75 | */ |
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| 76 | protected function compileComponents(Builder $builder) |
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| 77 | { |
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| 78 | $sql = []; |
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| 79 | |||
| 80 | foreach ($this->components as $component) { |
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| 81 | if ( ! is_null($builder->$component)) { |
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| 82 | $method = 'compile'.ucfirst($component); |
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| 83 | |||
| 84 | $sql[$component] = $this->$method($builder, $builder->$component); |
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| 85 | } |
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| 86 | } |
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| 87 | |||
| 88 | return $sql; |
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| 89 | } |
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| 90 | |||
| 91 | /** |
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| 92 | * Compile an aggregated select clause. |
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| 93 | * |
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| 94 | * @param \Syscodes\Database\Query\Builder $builder |
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| 95 | * @param array $aggregate |
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| 96 | * |
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| 97 | * @return string |
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| 98 | */ |
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| 99 | protected function compileAggregate(Builder $builder, $aggregate) |
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| 100 | { |
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| 101 | $column = $this->columnize($aggregate['columns']); |
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| 102 | |||
| 103 | if ($builder->distinct && $column !== '*') { |
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| 104 | $column = 'distinct '.$column; |
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| 105 | } |
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| 106 | |||
| 107 | return 'select '.$aggregate['function'].'('.$column.') as aggregate'; |
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| 108 | } |
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| 109 | |||
| 110 | /** |
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| 111 | * Compile the "select *" portion of the query. |
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| 112 | * |
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| 113 | * @param \Syscodes\Database\Query\Builder $builder |
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| 114 | * @param array $columns |
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| 115 | * |
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| 116 | * @return string |
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| 117 | */ |
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| 118 | protected function compileColumns(Builder $builder, $columns) |
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| 119 | { |
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| 120 | if (is_null($builder->columns)) { |
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| 121 | return; |
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| 122 | } |
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| 123 | |||
| 124 | $select = $builder->distinct ? 'select distinct ' : 'select '; |
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| 125 | |||
| 126 | return $select.$this->columnize($columns); |
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| 127 | } |
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| 128 | |||
| 129 | /** |
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| 130 | * Compile the "from" portion of the query. |
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| 131 | * |
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| 132 | * @param \Syscodes\Database\Query\Builder $builder |
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| 133 | * @param string $table |
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| 134 | * |
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| 135 | * @return string |
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| 136 | */ |
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| 137 | protected function compileFrom(Builder $builder, $table) |
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| 138 | { |
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| 139 | return 'from '.$this->wrapTable($table); |
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| 140 | } |
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| 141 | |||
| 142 | /** |
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| 143 | * Compile the "join" portions of the query. |
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| 144 | * |
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| 145 | * @param \Syscodes\Database\Query\Builder $builder |
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| 146 | * @param array $joins |
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| 147 | * |
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| 148 | * @return string |
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| 149 | */ |
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| 150 | protected function compileJoins(Builder $builder, $joins) |
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| 151 | { |
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| 152 | $sql = []; |
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| 153 | |||
| 154 | foreach ((array) $joins as $join) { |
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| 155 | $table = $this->wrapTable($join->table); |
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| 156 | |||
| 157 | $clauses = []; |
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| 158 | |||
| 159 | foreach ($join->clauses as $clause) { |
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| 160 | $clauses[] = $this->compileJoinContraint($clause); |
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| 161 | } |
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| 162 | |||
| 163 | foreach ($join->bindings as $binding) { |
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| 164 | $query->addBinding($binding, 'join'); |
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| 165 | } |
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| 166 | |||
| 167 | $clauses[0] = $this->removeStatementBoolean($clauses[0]); |
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| 168 | |||
| 169 | $clauses = implode(' ', $clauses); |
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| 170 | |||
| 171 | $sql[] = "{$join->type} join {$table} on {$clauses}"; |
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| 172 | } |
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| 173 | |||
| 174 | return implode(' ', $sql); |
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| 175 | } |
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| 176 | |||
| 177 | /** |
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| 178 | * Create a join clause constraint segment. |
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| 179 | * |
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| 180 | * @param array $clause |
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| 181 | * |
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| 182 | * @return string |
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| 183 | */ |
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| 184 | protected function compileJoinContraint(array $clause) |
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| 185 | { |
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| 186 | $first = $this->wrap($clause['first']); |
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| 187 | $second = $clause['where'] ? '?' : $this->wrap($clause['second']); |
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| 188 | |||
| 189 | return "{$clause['boolean']} $first {$clause['operator']} $second"; |
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| 190 | } |
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| 191 | |||
| 192 | /** |
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| 193 | * Compile the "where" portions of the query. |
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| 194 | * |
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| 195 | * @param \Syscodes\Database\Query\Builder $builder |
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| 196 | * |
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| 197 | * @return string |
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| 198 | */ |
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| 199 | protected function compileWheres(Builder $builder) |
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| 200 | { |
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| 201 | if (is_null($builder->wheres)) { |
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| 202 | return ''; |
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| 203 | } |
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| 204 | |||
| 205 | if (count($sql = $this->compileWheresToArray($builder)) > 0) { |
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| 206 | return $this->concatenateWheresClauses($builder, $sql); |
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| 207 | } |
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| 208 | |||
| 209 | return ''; |
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| 210 | } |
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| 211 | |||
| 212 | /** |
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| 213 | * Get an array of all the where clauses for the query. |
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| 214 | * |
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| 215 | * @param \Syscodes\Database\Query\Builder $query |
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| 216 | * |
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| 217 | * @return array |
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| 218 | */ |
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| 219 | protected function compileWheresToArray($query) |
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| 220 | { |
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| 221 | $sql = []; |
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| 222 | |||
| 223 | foreach ($query->wheres as $where) { |
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| 224 | $sql[] = $where['boolean'].' '.$this->{"where{$where['type']}"}($query, $where); |
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| 225 | } |
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| 226 | |||
| 227 | return $sql; |
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| 228 | } |
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| 229 | |||
| 230 | /** |
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| 231 | * Format the where clause statements into one string. |
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| 232 | * |
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| 233 | * @param \Syscodes\Database\Query\Builder $builder |
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| 234 | * @param array $sql |
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| 235 | * |
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| 236 | * @return string |
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| 237 | */ |
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| 238 | protected function concatenateWheresClauses($builder, $sql) |
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| 239 | { |
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| 240 | $statement = $builder->joins ? 'on' : 'where'; |
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| 241 | |||
| 242 | return $statement.' '.$this->removeStatementBoolean(implode(' ', $sql)); |
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| 243 | } |
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| 244 | |||
| 245 | /** |
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| 246 | * Compile a raw where clause. |
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| 247 | * |
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| 248 | * @param \Syscodes\Database\Query\Builder $builder |
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| 249 | * @param array $where |
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| 250 | * |
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| 251 | * @return string |
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| 252 | */ |
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| 253 | protected function whereRaw(Builder $builder, $where) |
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| 254 | { |
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| 255 | return $where['sql']; |
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| 256 | } |
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| 257 | |||
| 258 | /** |
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| 259 | * Compile a basic where clause. |
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| 260 | * |
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| 261 | * @param \Syscodes\Database\Query\Builder $builder |
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| 262 | * @param array $where |
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| 263 | * |
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| 264 | * @return string |
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| 265 | */ |
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| 266 | protected function whereBasic(Builder $builder, $where) |
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| 267 | { |
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| 268 | $operator = str_replace('?', '??', $where['operator']); |
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| 269 | |||
| 270 | return $this->wrap($where['column']).' '.$where['operator'].' '.$where['value']; |
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| 271 | } |
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| 272 | |||
| 273 | /** |
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| 274 | * Compile a "between" where clause. |
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| 275 | * |
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| 276 | * @param \Syscodes\Database\Query\Builder $builder |
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| 277 | * @param array $where |
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| 278 | * |
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| 279 | * @return string |
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| 280 | */ |
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| 281 | protected function whereBetween(Builder $builder, $where) |
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| 282 | { |
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| 283 | $between = $where['not'] ? 'not between' : 'between'; |
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| 284 | |||
| 285 | return $this->wrap($where['column']).' '.$between.' ? and ?'; |
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| 286 | } |
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| 287 | |||
| 288 | /** |
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| 289 | * Compile a where exists clause. |
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| 290 | * |
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| 291 | * @param \Syscodes\Database\Query\Builder $builder |
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| 292 | * @param array $where |
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| 293 | * |
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| 294 | * @return string |
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| 295 | */ |
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| 296 | protected function whereExists(Builder $builder, $where) |
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| 297 | { |
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| 298 | return 'exists ('.$this->compileSelect($where['query']).')'; |
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| 299 | } |
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| 300 | |||
| 301 | /** |
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| 302 | * Compile a where exists clause. |
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| 303 | * |
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| 304 | * @param \Syscodes\Database\Query\Builder $builder |
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| 305 | * @param array $where |
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| 306 | * |
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| 307 | * @return string |
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| 308 | */ |
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| 309 | protected function whereNotExists(Builder $builder, $where) |
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| 310 | { |
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| 311 | return 'not exists ('.$this->compileSelect($where['query']).')'; |
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| 312 | } |
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| 313 | |||
| 314 | /** |
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| 315 | * Compile a "where in" clause. |
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| 316 | * |
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| 317 | * @param \Syscodes\Database\Query\Builder $builder |
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| 318 | * @param array $where |
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| 319 | * |
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| 320 | * @return string |
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| 321 | */ |
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| 322 | protected function whereIn(Builder $builder, $where) |
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| 323 | { |
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| 324 | $values = $this->parameterize($where['query']); |
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| 325 | |||
| 326 | if ( ! empty($where['query'])) { |
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| 327 | return $this->wrap($where['column']).' in ('.$values.')'; |
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| 328 | } |
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| 329 | |||
| 330 | return '0 = 1'; |
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| 331 | } |
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| 332 | |||
| 333 | /** |
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| 334 | * Compile a "where not in" clause. |
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| 335 | * |
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| 336 | * @param \Syscodes\Database\Query\Builder $builder |
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| 337 | * @param array $where |
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| 338 | * |
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| 339 | * @return string |
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| 340 | */ |
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| 341 | protected function whereNotIn(Builder $builder, $where) |
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| 342 | { |
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| 343 | $values = $this->parameterize($where['query']); |
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| 344 | |||
| 345 | if ( ! empty($where['query'])) { |
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| 346 | return $this->wrap($where['column']).' not in ('.$values.')'; |
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| 347 | } |
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| 348 | |||
| 349 | return '1 = 1'; |
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| 350 | } |
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| 351 | |||
| 352 | /** |
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| 353 | * Compile a "where not in raw" clause. |
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| 354 | * |
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| 355 | * @param \Syscodes\Database\Query\Builder $builder |
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| 356 | * @param array $where |
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| 357 | * |
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| 358 | * @return string |
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| 359 | */ |
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| 360 | protected function whereNotInRaw(Builder $builder, $where) |
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| 361 | { |
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| 362 | if ( ! empty($where['query'])) { |
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| 363 | return $this->wrap($where['column']).' not in ('.implode(', ', $where['values']).')'; |
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| 364 | } |
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| 365 | |||
| 366 | return '1 = 1'; |
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| 367 | } |
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| 368 | |||
| 369 | /** |
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| 370 | * Compile a "where in raw" clause. |
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| 371 | * |
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| 372 | * @param \Syscodes\Database\Query\Builder $builder |
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| 373 | * @param array $where |
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| 374 | * |
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| 375 | * @return string |
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| 376 | */ |
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| 377 | protected function whereInRaw(Builder $builder, $where) |
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| 378 | { |
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| 379 | if ( ! empty($where['query'])) { |
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| 380 | return $this->wrap($where['column']).' in ('.implode(', ', $where['values']).')'; |
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| 381 | } |
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| 382 | |||
| 383 | return '0 = 1'; |
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| 384 | } |
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| 385 | |||
| 386 | /** |
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| 387 | * Compile a where in sub-select clause. |
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| 388 | * |
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| 389 | * @param \Syscodes\Database\Query\Builder $builder |
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| 390 | * @param array $where |
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| 391 | * |
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| 392 | * @return string |
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| 393 | */ |
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| 394 | protected function whereInSub(Builder $builder, $where) |
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| 395 | { |
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| 396 | $select = $this->compileSelect($where['query']); |
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| 397 | |||
| 398 | return $this->wrap($where['column']).' in ('.$select.')'; |
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| 399 | } |
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| 400 | |||
| 401 | /** |
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| 402 | * Compile a where not in sub-select clause. |
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| 403 | * |
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| 404 | * @param \Syscodes\Database\Query\Builder $builder |
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| 405 | * @param array $where |
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| 406 | * |
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| 407 | * @return string |
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| 408 | */ |
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| 409 | protected function whereNotInSub(Builder $builder, $where) |
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| 410 | { |
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| 411 | $select = $this->compileSelect($where['query']); |
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| 412 | |||
| 413 | return $this->wrap($where['column']).' not in ('.$select.')'; |
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| 414 | } |
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| 415 | |||
| 416 | /** |
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| 417 | * Compile a "where null" clause. |
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| 418 | * |
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| 419 | * @param \Syscodes\Database\Query\Builder $builder |
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| 420 | * @param array $where |
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| 421 | * |
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| 422 | * @return string |
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| 423 | */ |
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| 424 | protected function whereNull(Builder $builder, $where) |
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| 425 | { |
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| 426 | return $this->wrap($where['column']).' is null'; |
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| 427 | } |
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| 428 | |||
| 429 | /** |
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| 430 | * Compile a "where not null" clause. |
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| 431 | * |
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| 432 | * @param \Syscodes\Database\Query\Builder $builder |
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| 433 | * @param array $where |
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| 434 | * |
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| 435 | * @return string |
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| 436 | */ |
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| 437 | protected function whereNotNull(Builder $builder, $where) |
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| 438 | { |
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| 439 | return $this->wrap($where['column']).' not is null'; |
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| 440 | } |
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| 441 | |||
| 442 | /** |
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| 443 | * Compile a "where date" clause. |
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| 444 | * |
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| 445 | * @param \Syscodes\Database\Query\Builder $builder |
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| 446 | * @param array $where |
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| 447 | * |
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| 448 | * @return string |
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| 449 | */ |
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| 450 | protected function whereDate(Builder $builder, $where) |
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| 451 | { |
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| 452 | return $this->dateBasedWhere('date', $builder, $where); |
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| 453 | } |
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| 454 | |||
| 455 | /** |
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| 456 | * Compile a "where time" clause. |
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| 457 | * |
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| 458 | * @param \Syscodes\Database\Query\Builder $builder |
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| 459 | * @param array $where |
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| 460 | * |
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| 461 | * @return string |
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| 462 | */ |
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| 463 | protected function whereTime(Builder $builder, $where) |
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| 464 | { |
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| 465 | return $this->dateBasedWhere('time', $builder, $where); |
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| 466 | } |
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| 467 | |||
| 468 | /** |
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| 469 | * Compile a "where day" clause. |
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| 470 | * |
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| 471 | * @param \Syscodes\Database\Query\Builder $builder |
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| 472 | * @param array $where |
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| 473 | * |
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| 474 | * @return string |
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| 475 | */ |
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| 476 | protected function whereDay(Builder $builder, $where) |
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| 477 | { |
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| 478 | return $this->dateBasedWhere('day', $builder, $where); |
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| 479 | } |
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| 480 | |||
| 481 | /** |
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| 482 | * Compile a "where month" clause. |
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| 483 | * |
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| 484 | * @param \Syscodes\Database\Query\Builder $builder |
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| 485 | * @param array $where |
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| 486 | * |
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| 487 | * @return string |
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| 488 | */ |
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| 489 | protected function whereMonth(Builder $builder, $where) |
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| 490 | { |
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| 491 | return $this->dateBasedWhere('month', $builder, $where); |
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| 492 | } |
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| 493 | |||
| 494 | /** |
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| 495 | * Compile a "where year" clause. |
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| 496 | * |
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| 497 | * @param \Syscodes\Database\Query\Builder $builder |
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| 498 | * @param array $where |
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| 499 | * |
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| 500 | * @return string |
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| 501 | */ |
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| 502 | protected function whereYear(Builder $builder, $where) |
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| 503 | { |
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| 504 | return $this->dateBasedWhere('year', $builder, $where); |
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| 505 | } |
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| 506 | |||
| 507 | /** |
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| 508 | * Compile a date based where clause. |
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| 509 | * |
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| 510 | * @param string $type |
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| 511 | * @param \Syscodes\Database\Query\Builder $builder |
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| 512 | * @param array $where |
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| 513 | * |
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| 514 | * @return string |
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| 515 | */ |
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| 516 | protected function dateBasedWhere($type, Builder $builder, $where) |
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| 517 | { |
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| 518 | $value = $this->parameter($where['value']); |
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| 519 | |||
| 520 | return $type.'('.$this->wrap($where['column']).') '.$where['operator'].' '.$value; |
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| 521 | } |
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| 522 | |||
| 523 | /** |
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| 524 | * Compile a nested where clause. |
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| 525 | * |
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| 526 | * @param \Syscodes\Database\Query\Builder $builder |
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| 527 | * @param array $where |
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| 528 | * |
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| 529 | * @return string |
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| 530 | */ |
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| 531 | protected function whereNested(Builder $builder, $where) |
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| 532 | { |
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| 533 | $intClause = $builder instanceof JoinClause ? 3 : 6; |
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| 534 | |||
| 535 | return '('.substr($this->compileWheres($where['query']), $intClause).')'; |
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| 536 | } |
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| 537 | |||
| 538 | /** |
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| 539 | * Compile a where condition with a sub-select. |
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| 540 | * |
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| 541 | * @param \Syscodes\Database\Query\Builder $builder |
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| 542 | * @param array $where |
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| 543 | * |
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| 544 | * @return string |
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| 545 | */ |
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| 546 | protected function whereSub(Builder $builder, $where) |
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| 547 | { |
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| 548 | $select = $this->compileSelect($where['query']); |
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| 549 | |||
| 550 | return $this->wrap($where['column']).' '.$where['operator']." ($select)"; |
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| 551 | } |
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| 552 | |||
| 553 | /** |
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| 554 | * Compile a where clause comparing two columns. |
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| 555 | * |
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| 556 | * @param \Syscodes\Database\Query\Builder $builder |
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| 557 | * @param array $where |
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| 558 | * |
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| 559 | * @return string |
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| 560 | */ |
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| 561 | protected function whereColumn(Builder $builder, $where) |
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| 562 | { |
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| 563 | return $this->wrap($where['first']).' '.$where['operator'].' '.$this->wrap($where['second']); |
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| 564 | } |
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| 565 | |||
| 566 | /** |
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| 567 | * Compile the "group by" portions of the query. |
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| 568 | * |
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| 569 | * @param \Syscodes\Database\Query\Builder $builder |
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| 570 | * @param array $groups |
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| 571 | * |
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| 572 | * @return string |
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| 573 | */ |
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| 574 | protected function compileGroups(Builder $builder, $groups) |
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| 575 | { |
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| 576 | return 'group by '.$this->columnize($groups); |
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| 577 | } |
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| 578 | |||
| 579 | /** |
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| 580 | * Compile the "having" portions of the query. |
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| 581 | * |
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| 582 | * @param \Syscodes\Database\Query\Builder $builder |
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| 583 | * @param array $havings |
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| 584 | * |
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| 585 | * @return string |
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| 586 | */ |
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| 587 | protected function compileHavings(Builder $builder, $havings) |
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| 588 | { |
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| 589 | $sql = implode(' ', array_map([$this, 'compileHaving'], $havings)); |
||
| 590 | |||
| 591 | return 'having '.$this->removeStatementBoolean($sql); |
||
| 592 | } |
||
| 593 | |||
| 594 | /** |
||
| 595 | * Compile a single having clause. |
||
| 596 | * |
||
| 597 | * @param array $having |
||
| 598 | * |
||
| 599 | * @return string |
||
| 600 | */ |
||
| 601 | protected function compileHaving(array $having) |
||
| 602 | { |
||
| 603 | if ($having['type'] === 'raw') { |
||
| 604 | return $having['boolean'].' '.$having['sql']; |
||
| 605 | } elseif ($having['type'] === 'between') { |
||
| 606 | return $this->compileHavingBetween($having); |
||
| 607 | } |
||
| 608 | |||
| 609 | return $this->compileBasicHaving($having); |
||
| 610 | } |
||
| 611 | |||
| 612 | /** |
||
| 613 | * Compile a "between" having clause. |
||
| 614 | * |
||
| 615 | * @param array $having |
||
| 616 | * |
||
| 617 | * @return string |
||
| 618 | */ |
||
| 619 | protected function compileHavingBetween($having) |
||
| 620 | { |
||
| 621 | $between = $having['not'] ? 'not between' : 'between'; |
||
| 622 | |||
| 623 | $column = $this->wrap($having['column']); |
||
| 624 | |||
| 625 | $min = $this->parameter(head($having['values'])); |
||
| 626 | $max = $this->parameter(last($having['values'])); |
||
| 627 | |||
| 628 | return $having['boolean'].' '.$column.' '.$between.' '.$min.' and '.$max; |
||
| 629 | } |
||
| 630 | |||
| 631 | /** |
||
| 632 | * Compile a "basic" having clause. |
||
| 633 | * |
||
| 634 | * @param array $having |
||
| 635 | * |
||
| 636 | * @return string |
||
| 637 | */ |
||
| 638 | protected function compileBasicHaving($having) |
||
| 645 | } |
||
| 646 | |||
| 647 | /** |
||
| 648 | * Compile the "order by" portions of the query. |
||
| 649 | * |
||
| 650 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 651 | * @param array $orders |
||
| 652 | * |
||
| 653 | * @return string |
||
| 654 | */ |
||
| 655 | protected function compileOrders(Builder $builder, $orders) |
||
| 656 | { |
||
| 657 | if ( ! empty($orders)) { |
||
| 658 | return 'order by '.implode(', ', $this->compileOrderToArray($builder, $orders)); |
||
| 659 | } |
||
| 660 | |||
| 661 | return ''; |
||
| 662 | } |
||
| 663 | |||
| 664 | /** |
||
| 665 | * Compile the query orders to an array. |
||
| 666 | * |
||
| 667 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 668 | * @param array $orders |
||
| 669 | * |
||
| 670 | * @return string |
||
| 671 | */ |
||
| 672 | protected function compileOrderToArray(Builder $builder, $orders) |
||
| 673 | { |
||
| 674 | return array_map(function ($order) { |
||
| 675 | return $order['sql'] ?? $this->wrap($order['column']).' '.$order['direction']; |
||
| 676 | }, $orders); |
||
| 677 | } |
||
| 678 | |||
| 679 | /** |
||
| 680 | * Compile the "limit" portions of the query. |
||
| 681 | * |
||
| 682 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 683 | * @param int $limit |
||
| 684 | * |
||
| 685 | * @return string |
||
| 686 | */ |
||
| 687 | protected function compileLimit(Builder $builder, $limit) |
||
| 688 | { |
||
| 689 | return 'limit '.(int) $limit; |
||
| 690 | } |
||
| 691 | |||
| 692 | /** |
||
| 693 | * Compile the "offset" portions of the query. |
||
| 694 | * |
||
| 695 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 696 | * @param int $offset |
||
| 697 | * |
||
| 698 | * @return string |
||
| 699 | */ |
||
| 700 | protected function compileOffset(Builder $builder, $offset) |
||
| 701 | { |
||
| 702 | return 'offset '.(int) $offset; |
||
| 703 | } |
||
| 704 | |||
| 705 | /** |
||
| 706 | * Compile the "union" queries attached to the main query. |
||
| 707 | * |
||
| 708 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 709 | * |
||
| 710 | * @return string |
||
| 711 | */ |
||
| 712 | protected function compileUnions(Builder $builder) |
||
| 713 | { |
||
| 714 | $sql = ''; |
||
| 715 | |||
| 716 | foreach ($builder->unions as $union) { |
||
| 717 | $sql .= $this->compileUnion($union); |
||
| 718 | } |
||
| 719 | |||
| 720 | if ( ! empty($builder->unionOrders)) { |
||
| 721 | $sql .= ' '.$this->compileOrders($builder, $builder->unionOrders); |
||
| 722 | } |
||
| 723 | |||
| 724 | if (isset($builder->unionLimit)) { |
||
| 725 | $sql .= ' '.$this->compileLimit($builder, $builder->unionLimit); |
||
| 726 | } |
||
| 727 | |||
| 728 | if (isset($builder->unionOffset)) { |
||
| 729 | $sql .= ' '.$this->compileOffset($builder, $builder->unionOffset); |
||
| 730 | } |
||
| 731 | |||
| 732 | return ltrim($sql); |
||
| 733 | } |
||
| 734 | |||
| 735 | /** |
||
| 736 | * Compile a single union statement. |
||
| 737 | * |
||
| 738 | * @param array $union |
||
| 739 | * |
||
| 740 | * @return string |
||
| 741 | */ |
||
| 742 | protected function compileUnion(array $union) |
||
| 743 | { |
||
| 744 | $joiner = $union['all'] ? ' union all ' : ' union '; |
||
| 745 | |||
| 746 | return $joiner.$this->wrapUnion($union['query']->tosql()); |
||
| 747 | } |
||
| 748 | |||
| 749 | /** |
||
| 750 | * Wrap a union subquery in parentheses. |
||
| 751 | * |
||
| 752 | * @param string $sql |
||
| 753 | * |
||
| 754 | * @return string |
||
| 755 | */ |
||
| 756 | protected function wrapUnion($sql) |
||
| 757 | { |
||
| 758 | return '('.$sql.')'; |
||
| 759 | } |
||
| 760 | |||
| 761 | /** |
||
| 762 | * Compile the random statement into SQL. |
||
| 763 | * |
||
| 764 | * @param string $seed |
||
| 765 | * |
||
| 766 | * @return string |
||
| 767 | */ |
||
| 768 | public function compileRandom($seed) |
||
| 769 | { |
||
| 770 | return 'RANDOM()'; |
||
| 771 | } |
||
| 772 | |||
| 773 | /** |
||
| 774 | * Compile an exists statement into SQL. |
||
| 775 | * |
||
| 776 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 777 | * |
||
| 778 | * @return string |
||
| 779 | */ |
||
| 780 | public function compileExists(Builder $builder) |
||
| 781 | { |
||
| 782 | $select = $this->compileSelect($builder); |
||
| 783 | |||
| 784 | return "select exists({$select}) as {$this->wrap('exists')}"; |
||
| 785 | } |
||
| 786 | |||
| 787 | /** |
||
| 788 | * Compile an insert statement into SQL. |
||
| 789 | * |
||
| 790 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 791 | * @param array $values |
||
| 792 | * |
||
| 793 | * @return string |
||
| 794 | */ |
||
| 795 | public function compileInsert(Builder $builder, array $values) |
||
| 796 | { |
||
| 797 | $table = $this->wrapTable($builder->from); |
||
| 798 | |||
| 799 | if (empty($values)) { |
||
| 800 | return "insert into {$table} default values"; |
||
| 801 | } |
||
| 802 | |||
| 803 | if ( ! is_array(head($values))) { |
||
| 804 | $values = [$values]; |
||
| 805 | } |
||
| 806 | |||
| 807 | $columns = $this->columnize(array_keys(head($values))); |
||
| 808 | |||
| 809 | $parameters = $this->parameterize(head($values)); |
||
| 810 | |||
| 811 | $value = array_fill(0, count($values), "($parameters)"); |
||
| 812 | |||
| 813 | $parameters = implode(', ', $value); |
||
| 814 | |||
| 815 | return "insert into $table ($columns) values $parameters"; |
||
| 816 | } |
||
| 817 | |||
| 818 | /** |
||
| 819 | * Compile an insert and get ID statement into SQL. |
||
| 820 | * |
||
| 821 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 822 | * @param array $values |
||
| 823 | * @param string $sequence |
||
| 824 | * |
||
| 825 | * @return string |
||
| 826 | */ |
||
| 827 | public function compileInsertGetId(Builder $builder, $values, $sequence) |
||
| 830 | } |
||
| 831 | |||
| 832 | /** |
||
| 833 | * Compile an insert statement using a subquery into SQL. |
||
| 834 | * |
||
| 835 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 836 | * @param array $columns |
||
| 837 | * @param string $sql |
||
| 838 | * |
||
| 839 | * @return string |
||
| 840 | */ |
||
| 841 | public function compileInsertUsing(Builder $builder, $columns, $sql) |
||
| 844 | } |
||
| 845 | |||
| 846 | /** |
||
| 847 | * Compile an update statement into SQL. |
||
| 848 | * |
||
| 849 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 850 | * @param array $values |
||
| 851 | * |
||
| 852 | * @return string |
||
| 853 | */ |
||
| 854 | public function compileUpdate(Builder $builder, array $values) |
||
| 855 | { |
||
| 856 | $table = $this->wrapTable($builder->from); |
||
| 857 | |||
| 858 | $columns = $this->getUpdateColumns($values); |
||
| 859 | |||
| 860 | $where = $this->compileWheres($builder); |
||
| 861 | |||
| 862 | return trim( |
||
| 863 | isset($builder->joins) |
||
| 864 | ? $this->compileUpdateWithJoins($builder, $table, $columns, $where) |
||
| 865 | : $this->compileUpdateWithoutJoins($builder, $table, $columns, $where) |
||
| 866 | ); |
||
| 867 | } |
||
| 868 | |||
| 869 | /** |
||
| 870 | * Compile the columns for an update statement. |
||
| 871 | * |
||
| 872 | * @param array $values |
||
| 873 | * |
||
| 874 | * @return string |
||
| 875 | */ |
||
| 876 | public function getUpdateColumns(array $values) |
||
| 877 | { |
||
| 878 | $columns = []; |
||
| 879 | |||
| 880 | foreach ($values as $key => $value) { |
||
| 881 | $columns[] = $this->wrap($key).' = '.$this->parameter($value); |
||
| 882 | } |
||
| 883 | |||
| 884 | return implode(', ', $columns); |
||
| 885 | } |
||
| 886 | |||
| 887 | /** |
||
| 888 | * Compile an update statement with joins into SQL. |
||
| 889 | * |
||
| 890 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 891 | * @param string $table |
||
| 892 | * @param string $columns |
||
| 893 | * @param string $where |
||
| 894 | * |
||
| 895 | * @return string |
||
| 896 | */ |
||
| 897 | public function compileUpdateWithJoins(Builder $builder, $table, $columns, $where) |
||
| 902 | } |
||
| 903 | |||
| 904 | /** |
||
| 905 | * Compile an update statement without joins into SQL. |
||
| 906 | * |
||
| 907 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 908 | * @param string $table |
||
| 909 | * @param string $columns |
||
| 910 | * @param string $where |
||
| 911 | * |
||
| 912 | * @return string |
||
| 913 | */ |
||
| 914 | public function compileUpdateWithoutJoins(Builder $builder, $table, $columns, $where) |
||
| 915 | { |
||
| 916 | return "update {$table} set {$columns} {$where}"; |
||
| 917 | } |
||
| 918 | |||
| 919 | /** |
||
| 920 | * Compile a delete statement into SQL. |
||
| 921 | * |
||
| 922 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 923 | * |
||
| 924 | * @return string |
||
| 925 | */ |
||
| 926 | public function compileDelete(Builder $builder) |
||
| 927 | { |
||
| 928 | $table = $this->wrapTable($builder->from); |
||
| 929 | |||
| 930 | $where = $this->compileWheres($builder); |
||
| 931 | |||
| 932 | return trim( |
||
| 933 | isset($builder->joins) |
||
| 934 | ? $this->compileDeleteWithJoins($builder, $table, $where) |
||
| 935 | : $this->compileDeleteWithoutJoins($builder, $table, $where) |
||
| 936 | ); |
||
| 937 | } |
||
| 938 | |||
| 939 | /** |
||
| 940 | * Compile an delete statement with joins into SQL. |
||
| 941 | * |
||
| 942 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 943 | * @param string $table |
||
| 944 | * @param string $columns |
||
| 945 | * @param string $where |
||
| 946 | * |
||
| 947 | * @return string |
||
| 948 | */ |
||
| 949 | public function compileDeleteWithJoins(Builder $builder, $table, $where) |
||
| 950 | { |
||
| 951 | $alias = last(explode(' as ', $table)); |
||
| 952 | |||
| 953 | $joins = $this->compileJoins($builder, $builder->joins); |
||
| 954 | |||
| 955 | return "delete {$alias} from {$table} {$joins} {$where}"; |
||
| 956 | } |
||
| 957 | |||
| 958 | /** |
||
| 959 | * Compile an delete statement without joins into SQL. |
||
| 960 | * |
||
| 961 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 962 | * @param string $table |
||
| 963 | * @param string $where |
||
| 964 | * |
||
| 965 | * @return string |
||
| 966 | */ |
||
| 967 | public function compileDeleteWithoutJoins(Builder $builder, $table, $where) |
||
| 968 | { |
||
| 969 | return "delete from {$table} {$where}"; |
||
| 970 | } |
||
| 971 | |||
| 972 | /** |
||
| 973 | * Compile a truncate table statement into SQL. |
||
| 974 | * |
||
| 975 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 976 | * |
||
| 977 | * @return array |
||
| 978 | */ |
||
| 979 | public function compileTruncate(Builder $builder) |
||
| 980 | { |
||
| 981 | return ['truncate table '.$this->wrapTable($builder->from) => []]; |
||
| 982 | } |
||
| 983 | |||
| 984 | /** |
||
| 985 | * Compile the lock into SQL. |
||
| 986 | * |
||
| 987 | * @param \Syscodes\Database\Query\Builder $builder |
||
| 988 | * @param bool|string $value |
||
| 989 | * |
||
| 990 | * @return string |
||
| 991 | */ |
||
| 992 | public function compileLock(Builder $builder, $value) |
||
| 995 | } |
||
| 996 | |||
| 997 | /** |
||
| 998 | * Concatenate an array of segments, removing empties. |
||
| 999 | * |
||
| 1000 | * @param array $segments |
||
| 1001 | * |
||
| 1002 | * @return string |
||
| 1003 | */ |
||
| 1004 | protected function concatenate($segments) |
||
| 1005 | { |
||
| 1006 | return implode(' ', array_filter($segments, function ($value) { |
||
| 1007 | return (string) $value !== ''; |
||
| 1008 | })); |
||
| 1009 | } |
||
| 1010 | |||
| 1011 | /** |
||
| 1012 | * Remove the leading boolean from a statement. |
||
| 1013 | * |
||
| 1014 | * @param string $value |
||
| 1015 | * |
||
| 1016 | * @return |
||
| 1017 | */ |
||
| 1018 | protected function removeStatementBoolean($value) |
||
| 1021 | } |
||
| 1022 | } |
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