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<?php |
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namespace kalanis\kw_mapper\Storage\Database\Dialects; |
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use kalanis\kw_mapper\MapperException; |
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use kalanis\kw_mapper\Storage\Shared\QueryBuilder; |
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/** |
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* Class ADialect |
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* @package kalanis\kw_mapper\Storage\Database\Dialects |
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* All actions as defined by CRUD - Create, Read, Update, Delete |
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* |
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* Hints: |
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* For testing purposes we just fill prepared data and by that we got query. Implemention details are the problem |
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* of dialect of each language. And it's simple to test that. Then result go to the real connection. |
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* |
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* @todo: |
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* -> database operations - table create, table drop, table alter, ... |
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* |
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* Escaping of params has been determined on following links: |
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* @link http://sqlfiddle.com/ |
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* @link https://sqliteonline.com |
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*/ |
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abstract class ADialect |
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{ |
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/** |
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* Create data by properties |
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* @param QueryBuilder $builder |
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* @throws MapperException |
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* @return string|object |
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*/ |
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abstract public function insert(QueryBuilder $builder); |
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/** |
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* Read data described by conditions |
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* @param QueryBuilder $builder |
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* @throws MapperException |
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* @return string|object |
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*/ |
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abstract public function select(QueryBuilder $builder); |
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/** |
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* Update data properties described by conditions |
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* @param QueryBuilder $builder |
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* @throws MapperException |
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* @return string|object |
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*/ |
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abstract public function update(QueryBuilder $builder); |
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/** |
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* Delete data by conditions |
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* @param QueryBuilder $builder |
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* @throws MapperException |
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* @return string|object |
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*/ |
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abstract public function delete(QueryBuilder $builder); |
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/** |
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* Get table structure |
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* @param QueryBuilder $builder |
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* @throws MapperException |
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* @return string|object |
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*/ |
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abstract public function describe(QueryBuilder $builder); |
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/** |
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* Get array of available join operations |
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* @return string[] |
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*/ |
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abstract public function availableJoins(): array; |
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protected function selectAllColumns(): string |
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{ |
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return '*'; |
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} |
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protected function selectAllProperties(): string |
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{ |
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return '1=1'; |
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} |
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public function singlePropertyEntry(QueryBuilder\Property $column): string |
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{ |
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return $column->getColumnKey(); |
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} |
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} |
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alex-kalanis /
kw_mapper
