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| 1 | +<?php |
| 2 | + |
| 3 | +/** |
| 4 | + * Transaction statement. |
| 5 | + * |
| 6 | + * @package SqlParser |
| 7 | + * @subpackage Statements |
| 8 | + */ |
| 9 | +namespace SqlParser\Statements; |
| 10 | + |
| 11 | +use SqlParser\Parser; |
| 12 | +use SqlParser\Statement; |
| 13 | +use SqlParser\Token; |
| 14 | +use SqlParser\TokensList; |
| 15 | +use SqlParser\Components\Expression; |
| 16 | +use SqlParser\Components\OptionsArray; |
| 17 | + |
| 18 | +/** |
| 19 | + * Transaction statement. |
| 20 | + * |
| 21 | + * @category Statements |
| 22 | + * @package SqlParser |
| 23 | + * @subpackage Statements |
| 24 | + * @author Dan Ungureanu <udan1107@gmail.com> |
| 25 | + * @license http://opensource.org/licenses/GPL-2.0 GNU Public License |
| 26 | + */ |
| 27 | +class TransactionStatement extends Statement |
| 28 | +{ |
| 29 | + |
| 30 | + /** |
| 31 | + * START TRANSACTION and BEGIN |
| 32 | + * |
| 33 | + * @var int |
| 34 | + */ |
| 35 | + const TYPE_BEGIN = 1; |
| 36 | + |
| 37 | + /** |
| 38 | + * COMMIT and ROLLBACK |
| 39 | + * |
| 40 | + * @var int |
| 41 | + */ |
| 42 | + const TYPE_END = 2; |
| 43 | + |
| 44 | + /** |
| 45 | + * The type of this query. |
| 46 | + * |
| 47 | + * @var int |
| 48 | + */ |
| 49 | + public $type; |
| 50 | + |
| 51 | + /** |
| 52 | + * The list of statements in this transaction. |
| 53 | + * |
| 54 | + * @var Statements[] |
| 55 | + */ |
| 56 | + public $statements; |
| 57 | + |
| 58 | + /** |
| 59 | + * The ending transaction statement which may be a `COMMIT` or a `ROLLBACK`. |
| 60 | + * |
| 61 | + * @var TransactionStatement |
| 62 | + */ |
| 63 | + public $end; |
| 64 | + |
| 65 | + /** |
| 66 | + * Options for this query. |
| 67 | + * |
| 68 | + * @var array |
| 69 | + */ |
| 70 | + public static $OPTIONS = array( |
| 71 | + 'START TRANSACTION' => 1, |
| 72 | + 'BEGIN' => 1, |
| 73 | + 'COMMIT' => 1, |
| 74 | + 'ROLLBACK' => 1, |
| 75 | + 'WITH CONSISTENT SNAPSHOT' => 2, |
| 76 | + 'WORK' => 2, |
| 77 | + 'AND NO CHAIN' => 3, |
| 78 | + 'AND CHAIN' => 3, |
| 79 | + 'RELEASE' => 4, |
| 80 | + 'NO RELEASE' => 4, |
| 81 | + ); |
| 82 | + |
| 83 | + /** |
| 84 | + * @param Parser $parser The instance that requests parsing. |
| 85 | + * @param TokensList $list The list of tokens to be parsed. |
| 86 | + * |
| 87 | + * @return void |
| 88 | + */ |
| 89 | + public function parse(Parser $parser, TokensList $list) |
| 90 | + { |
| 91 | + $this->options = OptionsArray::parse( |
| 92 | + $parser, |
| 93 | + $list, |
| 94 | + static::$OPTIONS |
| 95 | + ); |
| 96 | + |
| 97 | + // Checks the type of this query. |
| 98 | + if (($this->options->has('START TRANSACTION')) |
| 99 | + || ($this->options->has('BEGIN')) |
| 100 | + ) { |
| 101 | + $this->type = TransactionStatement::TYPE_BEGIN; |
| 102 | + } elseif (($this->options->has('COMMIT')) |
| 103 | + || ($this->options->has('ROLLBACK')) |
| 104 | + ) { |
| 105 | + $this->type = TransactionStatement::TYPE_END; |
| 106 | + } |
| 107 | + } |
| 108 | + |
| 109 | + /** |
| 110 | + * @return string |
| 111 | + */ |
| 112 | + public function build() |
| 113 | + { |
| 114 | + $ret = OptionsArray::build($this->options); |
| 115 | + if ($this->type === TransactionStatement::TYPE_BEGIN) { |
| 116 | + foreach ($this->statements as $statement) { |
| 117 | + $ret .= ';' . $statement->build(); |
| 118 | + } |
| 119 | + $ret .= ';' . $this->end->build(); |
| 120 | + } |
| 121 | + return $ret; |
| 122 | + } |
| 123 | +} |
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