| @@ 677-712 (lines=36) @@ | ||
| 674 | /** |
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| 675 | * {@inheritdoc} |
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| 676 | */ |
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| 677 | public function dropForeignKey($tableName, $columns, $constraint = null) |
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| 678 | { |
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| 679 | if (is_string($columns)) { |
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| 680 | $columns = [$columns]; // str to array |
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| 681 | } |
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| 682 | ||
| 683 | if ($constraint) { |
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| 684 | $this->execute( |
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| 685 | sprintf( |
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| 686 | 'ALTER TABLE %s DROP FOREIGN KEY %s', |
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| 687 | $this->quoteTableName($tableName), |
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| 688 | $constraint |
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| 689 | ) |
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| 690 | ); |
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| 691 | ||
| 692 | return; |
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| 693 | } else { |
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| 694 | foreach ($columns as $column) { |
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| 695 | $rows = $this->fetchAll(sprintf( |
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| 696 | "SELECT |
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| 697 | CONSTRAINT_NAME |
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| 698 | FROM information_schema.KEY_COLUMN_USAGE |
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| 699 | WHERE REFERENCED_TABLE_SCHEMA = DATABASE() |
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| 700 | AND REFERENCED_TABLE_NAME IS NOT NULL |
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| 701 | AND TABLE_NAME = '%s' |
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| 702 | AND COLUMN_NAME = '%s' |
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| 703 | ORDER BY POSITION_IN_UNIQUE_CONSTRAINT", |
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| 704 | $tableName, |
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| 705 | $column |
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| 706 | )); |
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| 707 | foreach ($rows as $row) { |
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| 708 | $this->dropForeignKey($tableName, $columns, $row['CONSTRAINT_NAME']); |
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| 709 | } |
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| 710 | } |
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| 711 | } |
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| 712 | } |
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| 713 | ||
| 714 | /** |
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| 715 | * {@inheritdoc} |
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| @@ 685-718 (lines=34) @@ | ||
| 682 | /** |
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| 683 | * {@inheritdoc} |
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| 684 | */ |
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| 685 | public function dropForeignKey($tableName, $columns, $constraint = null) |
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| 686 | { |
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| 687 | if (is_string($columns)) { |
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| 688 | $columns = [$columns]; // str to array |
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| 689 | } |
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| 690 | ||
| 691 | if ($constraint) { |
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| 692 | $this->execute( |
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| 693 | sprintf( |
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| 694 | 'ALTER TABLE %s DROP CONSTRAINT %s', |
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| 695 | $this->quoteTableName($tableName), |
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| 696 | $constraint |
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| 697 | ) |
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| 698 | ); |
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| 699 | } else { |
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| 700 | foreach ($columns as $column) { |
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| 701 | $rows = $this->fetchAll(sprintf( |
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| 702 | "SELECT CONSTRAINT_NAME |
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| 703 | FROM information_schema.KEY_COLUMN_USAGE |
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| 704 | WHERE TABLE_SCHEMA = CURRENT_SCHEMA() |
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| 705 | AND TABLE_NAME IS NOT NULL |
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| 706 | AND TABLE_NAME = '%s' |
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| 707 | AND COLUMN_NAME = '%s' |
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| 708 | ORDER BY POSITION_IN_UNIQUE_CONSTRAINT", |
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| 709 | $tableName, |
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| 710 | $column |
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| 711 | )); |
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| 712 | ||
| 713 | foreach ($rows as $row) { |
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| 714 | $this->dropForeignKey($tableName, $columns, $row['constraint_name']); |
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| 715 | } |
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| 716 | } |
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| 717 | } |
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| 718 | } |
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| 719 | ||
| 720 | /** |
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| 721 | * {@inheritdoc} |
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| @@ 692-714 (lines=23) @@ | ||
| 689 | /** |
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| 690 | * {@inheritdoc} |
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| 691 | */ |
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| 692 | public function dropIndex($tableName, $columns) |
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| 693 | { |
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| 694 | if (is_string($columns)) { |
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| 695 | $columns = [$columns]; // str to array |
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| 696 | } |
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| 697 | ||
| 698 | $indexes = $this->getIndexes($tableName); |
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| 699 | $columns = array_map('strtolower', $columns); |
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| 700 | ||
| 701 | foreach ($indexes as $indexName => $index) { |
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| 702 | $a = array_diff($columns, $index['columns']); |
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| 703 | if (empty($a)) { |
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| 704 | $this->execute( |
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| 705 | sprintf( |
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| 706 | 'DROP INDEX %s ON %s', |
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| 707 | $this->quoteColumnName($indexName), |
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| 708 | $this->quoteTableName($tableName) |
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| 709 | ) |
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| 710 | ); |
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| 711 | ||
| 712 | return; |
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| 713 | } |
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| 714 | } |
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| 715 | } |
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| 716 | ||
| 717 | /** |
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| @@ 816-853 (lines=38) @@ | ||
| 813 | /** |
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| 814 | * {@inheritdoc} |
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| 815 | */ |
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| 816 | public function dropForeignKey($tableName, $columns, $constraint = null) |
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| 817 | { |
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| 818 | if (is_string($columns)) { |
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| 819 | $columns = [$columns]; // str to array |
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| 820 | } |
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| 821 | ||
| 822 | if ($constraint) { |
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| 823 | $this->execute( |
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| 824 | sprintf( |
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| 825 | 'ALTER TABLE %s DROP CONSTRAINT %s', |
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| 826 | $this->quoteTableName($tableName), |
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| 827 | $constraint |
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| 828 | ) |
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| 829 | ); |
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| 830 | ||
| 831 | return; |
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| 832 | } else { |
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| 833 | foreach ($columns as $column) { |
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| 834 | $rows = $this->fetchAll(sprintf( |
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| 835 | "SELECT |
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| 836 | tc.constraint_name, |
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| 837 | tc.table_name, kcu.column_name, |
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| 838 | ccu.table_name AS referenced_table_name, |
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| 839 | ccu.column_name AS referenced_column_name |
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| 840 | FROM |
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| 841 | information_schema.table_constraints AS tc |
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| 842 | JOIN information_schema.key_column_usage AS kcu ON tc.constraint_name = kcu.constraint_name |
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| 843 | JOIN information_schema.constraint_column_usage AS ccu ON ccu.constraint_name = tc.constraint_name |
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| 844 | WHERE constraint_type = 'FOREIGN KEY' AND tc.table_name = '%s' and ccu.column_name='%s' |
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| 845 | ORDER BY kcu.ordinal_position", |
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| 846 | $tableName, |
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| 847 | $column |
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| 848 | )); |
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| 849 | foreach ($rows as $row) { |
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| 850 | $this->dropForeignKey($tableName, $columns, $row['constraint_name']); |
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| 851 | } |
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| 852 | } |
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| 853 | } |
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| 854 | } |
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| 855 | ||
| 856 | /** |
|