@@ 660-695 (lines=36) @@ | ||
657 | /** |
|
658 | * {@inheritdoc} |
|
659 | */ |
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660 | public function dropForeignKey($tableName, $columns, $constraint = null) |
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661 | { |
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662 | if (is_string($columns)) { |
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663 | $columns = [$columns]; // str to array |
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664 | } |
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665 | ||
666 | if ($constraint) { |
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667 | $this->execute( |
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668 | sprintf( |
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669 | 'ALTER TABLE %s DROP FOREIGN KEY %s', |
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670 | $this->quoteTableName($tableName), |
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671 | $constraint |
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672 | ) |
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673 | ); |
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674 | ||
675 | return; |
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676 | } else { |
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677 | foreach ($columns as $column) { |
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678 | $rows = $this->fetchAll(sprintf( |
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679 | "SELECT |
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680 | CONSTRAINT_NAME |
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681 | FROM information_schema.KEY_COLUMN_USAGE |
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682 | WHERE REFERENCED_TABLE_SCHEMA = DATABASE() |
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683 | AND REFERENCED_TABLE_NAME IS NOT NULL |
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684 | AND TABLE_NAME = '%s' |
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685 | AND COLUMN_NAME = '%s' |
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686 | ORDER BY POSITION_IN_UNIQUE_CONSTRAINT", |
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687 | $tableName, |
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688 | $column |
|
689 | )); |
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690 | foreach ($rows as $row) { |
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691 | $this->dropForeignKey($tableName, $columns, $row['CONSTRAINT_NAME']); |
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692 | } |
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693 | } |
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694 | } |
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695 | } |
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696 | ||
697 | /** |
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698 | * {@inheritdoc} |
@@ 683-705 (lines=23) @@ | ||
680 | /** |
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681 | * {@inheritdoc} |
|
682 | */ |
|
683 | public function dropIndex($tableName, $columns) |
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684 | { |
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685 | if (is_string($columns)) { |
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686 | $columns = [$columns]; // str to array |
|
687 | } |
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688 | ||
689 | $indexes = $this->getIndexes($tableName); |
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690 | $columns = array_map('strtolower', $columns); |
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691 | ||
692 | foreach ($indexes as $indexName => $index) { |
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693 | $a = array_diff($columns, $index['columns']); |
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694 | if (empty($a)) { |
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695 | $this->execute( |
|
696 | sprintf( |
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697 | 'DROP INDEX %s ON %s', |
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698 | $this->quoteColumnName($indexName), |
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699 | $this->quoteTableName($tableName) |
|
700 | ) |
|
701 | ); |
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702 | ||
703 | return; |
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704 | } |
|
705 | } |
|
706 | } |
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707 | ||
708 | /** |
|
@@ 807-844 (lines=38) @@ | ||
804 | /** |
|
805 | * {@inheritdoc} |
|
806 | */ |
|
807 | public function dropForeignKey($tableName, $columns, $constraint = null) |
|
808 | { |
|
809 | if (is_string($columns)) { |
|
810 | $columns = [$columns]; // str to array |
|
811 | } |
|
812 | ||
813 | if ($constraint) { |
|
814 | $this->execute( |
|
815 | sprintf( |
|
816 | 'ALTER TABLE %s DROP CONSTRAINT %s', |
|
817 | $this->quoteTableName($tableName), |
|
818 | $constraint |
|
819 | ) |
|
820 | ); |
|
821 | ||
822 | return; |
|
823 | } else { |
|
824 | foreach ($columns as $column) { |
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825 | $rows = $this->fetchAll(sprintf( |
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826 | "SELECT |
|
827 | tc.constraint_name, |
|
828 | tc.table_name, kcu.column_name, |
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829 | ccu.table_name AS referenced_table_name, |
|
830 | ccu.column_name AS referenced_column_name |
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831 | FROM |
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832 | information_schema.table_constraints AS tc |
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833 | JOIN information_schema.key_column_usage AS kcu ON tc.constraint_name = kcu.constraint_name |
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834 | JOIN information_schema.constraint_column_usage AS ccu ON ccu.constraint_name = tc.constraint_name |
|
835 | WHERE constraint_type = 'FOREIGN KEY' AND tc.table_name = '%s' and ccu.column_name='%s' |
|
836 | ORDER BY kcu.ordinal_position", |
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837 | $tableName, |
|
838 | $column |
|
839 | )); |
|
840 | foreach ($rows as $row) { |
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841 | $this->dropForeignKey($tableName, $columns, $row['constraint_name']); |
|
842 | } |
|
843 | } |
|
844 | } |
|
845 | } |
|
846 | ||
847 | /** |
@@ 720-753 (lines=34) @@ | ||
717 | /** |
|
718 | * {@inheritdoc} |
|
719 | */ |
|
720 | public function dropForeignKey($tableName, $columns, $constraint = null) |
|
721 | { |
|
722 | if (is_string($columns)) { |
|
723 | $columns = [$columns]; // str to array |
|
724 | } |
|
725 | ||
726 | if ($constraint) { |
|
727 | $this->execute( |
|
728 | sprintf( |
|
729 | 'ALTER TABLE %s DROP CONSTRAINT %s', |
|
730 | $this->quoteTableName($tableName), |
|
731 | $constraint |
|
732 | ) |
|
733 | ); |
|
734 | } else { |
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735 | foreach ($columns as $column) { |
|
736 | $rows = $this->fetchAll(sprintf( |
|
737 | "SELECT CONSTRAINT_NAME |
|
738 | FROM information_schema.KEY_COLUMN_USAGE |
|
739 | WHERE TABLE_SCHEMA = CURRENT_SCHEMA() |
|
740 | AND TABLE_NAME IS NOT NULL |
|
741 | AND TABLE_NAME = '%s' |
|
742 | AND COLUMN_NAME = '%s' |
|
743 | ORDER BY POSITION_IN_UNIQUE_CONSTRAINT", |
|
744 | $tableName, |
|
745 | $column |
|
746 | )); |
|
747 | ||
748 | foreach ($rows as $row) { |
|
749 | $this->dropForeignKey($tableName, $columns, $row['constraint_name']); |
|
750 | } |
|
751 | } |
|
752 | } |
|
753 | } |
|
754 | ||
755 | /** |
|
756 | * {@inheritdoc} |