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<?php |
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namespace yentu; |
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class DatabaseAssertor |
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{ |
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private $description; |
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public function __construct($description) |
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{ |
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$this->description = $description; |
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} |
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public function doesSchemaExist($details) |
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{ |
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return isset($this->description['schemata'][$details]); |
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} |
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public function doesTableExist($details) |
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{ |
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if (is_string($details)) { |
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$details = array( |
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'schema' => false, |
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'name' => $details |
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); |
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} |
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return $details['schema'] == false ? |
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isset($this->description['tables'][$details['name']]) : |
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isset($this->description['schemata'][$details['schema']]['tables'][$details['name']]); |
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} |
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public function doesColumnExist($details) |
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{ |
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$table = $this->getTableDetails($details['schema'], $details['table']); |
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return isset($table['columns'][$details['name']]) ? |
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Parameters::wrap($table['columns'][$details['name']]) : false; |
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} |
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private function doesItemExist($details, $type) |
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{ |
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$table = $this->getTableDetails($details['schema'], $details['table']); |
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if (isset($details['name'])) { |
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return $table[$type][$details['name']] ?? false; |
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} else if (!empty($details['columns'])) { |
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$columns = array_map(fn($x) => $x, $details['columns']); |
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sort($columns); |
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return $table["flat_$type"][implode(':', $columns)] ?? false; |
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} |
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return false; |
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} |
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public function doesForeignKeyExist($details) |
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{ |
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return $this->doesItemExist($details, 'foreign_keys'); |
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} |
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public function doesUniqueKeyExist($details) |
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{ |
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return $this->doesItemExist($details, 'unique_keys'); |
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} |
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public function doesPrimaryKeyExist($details) |
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{ |
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return $this->doesItemExist($details, 'primary_key'); |
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} |
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public function doesIndexExist($details) |
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{ |
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return $this->doesItemExist($details, 'indices'); |
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} |
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public function doesViewExist($details) |
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{ |
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if (is_string($details)) { |
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$details = array( |
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'schema' => false, |
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'name' => $details |
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); |
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} |
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// too complex |
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if ($details['schema'] == false) { |
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return isset($this->description['views'][$details['name']]) ? $this->description['views'][$details['name']]['definition'] : false; |
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} else { |
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return (isset($this->description['schemata'][$details['schema']]['views'][$details['name']]) ? |
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$this->description['schemata'][$details['schema']]['views'][$details['name']]['definition'] : false); |
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} |
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} |
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private function getTableDetails($schema, $table) |
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{ |
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if ($schema) { |
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return $this->description['schemata'][$schema]['tables'][$table]; |
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} else { |
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return $this->description['tables'][$table]; |
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} |
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} |
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} |
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ntentan /
yentu
