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SelectStatement.php
128 lines
| 1 | <?php |
| 2 | |
| 3 | namespace Give\Framework\QueryBuilder\Concerns; |
| 4 | |
| 5 | use Give\Framework\Database\DB; |
| 6 | use Give\Framework\QueryBuilder\Clauses\RawSQL; |
| 7 | use Give\Framework\QueryBuilder\Clauses\Select; |
| 8 | |
| 9 | /** |
| 10 | * @since 2.19.0 |
| 11 | */ |
| 12 | trait SelectStatement |
| 13 | { |
| 14 | /** |
| 15 | * @var Select[]|RawSQL[] |
| 16 | */ |
| 17 | protected $selects = []; |
| 18 | |
| 19 | /** |
| 20 | * @var bool |
| 21 | */ |
| 22 | protected $distinct = false; |
| 23 | |
| 24 | /** |
| 25 | * @var bool |
| 26 | */ |
| 27 | private $includeSelectKeyword = true; |
| 28 | |
| 29 | /** |
| 30 | * @param array $columns |
| 31 | * |
| 32 | * @return $this |
| 33 | */ |
| 34 | public function select(...$columns) |
| 35 | { |
| 36 | $selects = array_map(function ($select) { |
| 37 | if (is_array($select)) { |
| 38 | list($column, $alias) = $select; |
| 39 | |
| 40 | return new Select($column, $alias); |
| 41 | } |
| 42 | |
| 43 | return new Select($select); |
| 44 | }, $columns); |
| 45 | |
| 46 | $this->selects = array_merge($this->selects, $selects); |
| 47 | |
| 48 | return $this; |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * Add raw SQL SELECT statement |
| 53 | * |
| 54 | * @param string $sql |
| 55 | * @param ...$args |
| 56 | */ |
| 57 | public function selectRaw($sql, ...$args) |
| 58 | { |
| 59 | $this->selects[] = new RawSQL($sql, $args); |
| 60 | |
| 61 | return $this; |
| 62 | } |
| 63 | |
| 64 | |
| 65 | /** |
| 66 | * Select distinct |
| 67 | * |
| 68 | * @return $this |
| 69 | */ |
| 70 | public function distinct() |
| 71 | { |
| 72 | $this->distinct = true; |
| 73 | |
| 74 | return $this; |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * @return string[] |
| 79 | */ |
| 80 | protected function getSelectSQL() |
| 81 | { |
| 82 | // Select all by default |
| 83 | if (empty($this->selects)) { |
| 84 | $this->select('*'); |
| 85 | } |
| 86 | |
| 87 | $selects = []; |
| 88 | |
| 89 | foreach ($this->selects as $i => $select) { |
| 90 | if ($select instanceof RawSQL) { |
| 91 | if ($i === 0) { |
| 92 | // If the first element is an instance of RawSQL |
| 93 | // then we don't need the starting SELECT keyword because we assume that the dev will include that in RawSQL |
| 94 | $this->includeSelectKeyword = false; |
| 95 | } |
| 96 | $selects[] = $select->sql; |
| 97 | continue; |
| 98 | } |
| 99 | |
| 100 | if ($select->alias) { |
| 101 | $selects[] = DB::prepare( |
| 102 | '%1s AS %2s', |
| 103 | $select->column, |
| 104 | $select->alias |
| 105 | ); |
| 106 | |
| 107 | continue; |
| 108 | } |
| 109 | |
| 110 | $selects[] = DB::prepare('%1s', $select->column); |
| 111 | } |
| 112 | |
| 113 | $selectStatements = implode(', ', $selects); |
| 114 | |
| 115 | if ($this->includeSelectKeyword) { |
| 116 | $keyword = 'SELECT '; |
| 117 | |
| 118 | if ($this->distinct) { |
| 119 | $keyword .= 'DISTINCT '; |
| 120 | } |
| 121 | |
| 122 | return [$keyword . $selectStatements]; |
| 123 | } |
| 124 | |
| 125 | return [$selectStatements]; |
| 126 | } |
| 127 | } |
| 128 |