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<?php |
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namespace ntentan\nibii; |
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class QueryEngine { |
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private $db; |
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public function setDriver($driver) { |
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$this->db = $driver; |
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} |
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/** |
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* Generates an SQL insert query string for the model based on the fields |
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* currently stored in the model. |
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* |
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* @param RecordWrapper $model |
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* @return string |
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*/ |
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public function getInsertQuery($model) { |
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$data = $model->getData(); |
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$table = $model->getDBStoreInformation()['quoted_table']; |
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$fields = array_keys($data[0]); |
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$quotedFields = []; |
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$valueFields = []; |
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foreach ($fields as $field) { |
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$quotedFields[] = $this->db->quoteIdentifier($field); |
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$valueFields[] = ":{$field}"; |
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} |
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return "INSERT INTO " . $table . |
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" (" . implode(", ", $quotedFields) . ") VALUES (" . implode(', ', $valueFields) . ")"; |
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} |
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public function getBulkUpdateQuery($data, $parameters) { |
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$updateData = []; |
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foreach ($data as $field => $value) { |
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$updateData[] = "{$this->db->quoteIdentifier($field)} = :$field"; |
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} |
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return sprintf( |
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"UPDATE %s SET %s %s", |
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$parameters->getTable(), |
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implode(', ', $updateData), |
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$parameters->getWhereClause() |
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); |
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} |
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/** |
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* Generates an SQL update query string for the model based on the data |
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* currently stored in the model. |
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* |
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* @param RecordWrapper $model |
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* @return string |
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*/ |
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public function getUpdateQuery($model) { |
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$data = $model->getData(); |
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$fields = array_keys($data[0]); |
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$valueFields = []; |
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$conditions = []; |
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$primaryKey = $model->getDescription()->getPrimaryKey(); |
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foreach ($fields as $field) { |
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$quotedField = $this->db->quoteIdentifier($field); |
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if (array_search($field, $primaryKey) !== false) { |
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$conditions[] = "{$quotedField} = :{$field}"; |
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} else { |
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$valueFields[] = "{$quotedField} = :{$field}"; |
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} |
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} |
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return "UPDATE " . |
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$model->getDBStoreInformation()['quoted_table'] . |
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" SET " . implode(', ', $valueFields) . |
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" WHERE " . implode(' AND ', $conditions); |
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} |
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public function getSelectQuery($parameters) { |
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return sprintf( |
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"SELECT %s FROM %s%s%s%s%s", |
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$parameters->getFields(), |
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$parameters->getTable(), |
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$parameters->getWhereClause(), |
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$parameters->getSorts(), |
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$parameters->getLimit(), |
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$parameters->getOffset() |
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); |
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} |
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public function getCountQuery($parameters) { |
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return sprintf( |
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"SELECT count(*) as count FROM %s%s", |
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$parameters->getTable(), |
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$parameters->getWhereClause() |
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); |
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} |
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public function getDeleteQuery($parameters) { |
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return sprintf( |
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"DELETE FROM %s%s", |
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$parameters->getTable(), |
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$parameters->getWhereClause() |
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); |
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} |
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} |
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ntentan /
nibii
