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<?php |
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namespace Ubiquity\db\providers\pdo\drivers; |
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/** |
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* Ubiquity\db\providers\pdo\drivers$PgsqlDriverMetas |
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* This class is part of Ubiquity |
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* |
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* @author Ulaş SAYGIN |
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* @version 1.0.1 |
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* |
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*/ |
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class PgsqlDriverMetas extends AbstractDriverMetaDatas { |
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public function getForeignKeys($tableName, $pkName, $dbName = null): array { |
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$recordset = $this->dbInstance->query ( 'SELECT k1.constraint_catalog as "CONSTRAINT_CATALOG", k1.constraint_schema as "CONSTRAINT_SCHEMA", |
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k1.constraint_name as "CONSTRAINT_NAME", |
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k1.table_catalog as "TABLE_CATALOG", |
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k1.table_schema as "TABLE_SCHEMA", |
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k1.table_name as "TABLE_NAME", |
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k1.column_name as "COLUMN_NAME", |
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k1.ordinal_position as "ORDINAL_POSITION" , |
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k1.position_in_unique_constraint as "POSITION_IN_UNIQUE_CONSTRAINT", |
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k2.table_schema AS "REFERENCED_TABLE_SCHEMA", |
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k2.table_name AS "REFERENCED_TABLE_NAME", |
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k2.column_name AS "REFERENCED_COLUMN_NAME" |
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FROM information_schema.key_column_usage k1 |
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JOIN information_schema.referential_constraints fk USING (constraint_schema, constraint_name) |
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JOIN information_schema.key_column_usage k2 |
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ON k2.constraint_schema = fk.unique_constraint_schema |
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AND k2.constraint_name = fk.unique_constraint_name |
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AND k2.ordinal_position = k1.position_in_unique_constraint |
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WHERE k1.table_schema = \'public\' |
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and k2.column_name=\'' . $pkName . '\' |
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AND k2.table_name = \'' . $tableName . '\';' ); |
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return $recordset->fetchAll ( \PDO::FETCH_ASSOC ); |
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} |
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public function getTablesName(): array { |
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$query = $this->dbInstance->query ( 'SELECT tablename as schemaname FROM pg_catalog.pg_tables WHERE schemaname != \'pg_catalog\' AND schemaname != \'information_schema\';' ); |
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return $query->fetchAll ( \PDO::FETCH_COLUMN ); |
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} |
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public function getPrimaryKeys($tableName): array { |
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$fieldkeys = array (); |
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$recordset = $this->dbInstance->query ( "SELECT a.attname, format_type(a.atttypid, a.atttypmod) AS data_type FROM pg_index i JOIN pg_attribute a ON a.attrelid = i.indrelid AND a.attnum = ANY(i.indkey) WHERE i.indrelid = '{$tableName}'::regclass AND i.indisprimary;" ); |
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$keys = $recordset->fetchAll ( \PDO::FETCH_ASSOC ); |
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foreach ( $keys as $key ) { |
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$fieldkeys [] = $key ['attname']; |
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} |
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return $fieldkeys; |
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} |
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public function getFieldsInfos($tableName): array { |
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$fieldsInfos = array (); |
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$recordset = $this->dbInstance->query ( "SELECT |
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f.attname AS \"Field\", |
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pg_catalog.format_type(f.atttypid,f.atttypmod) AS \"Type\", |
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CASE |
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WHEN f.attnotnull=true THEN 'YES' |
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WHEN f.attnotnull=false THEN 'NO' |
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ELSE '' |
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END AS \"Null\", |
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CASE |
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WHEN p.contype = 'u' THEN 'MUL' |
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WHEN p.contype = 'p' THEN 'PRI' |
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ELSE '' |
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END AS \"Key\", |
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CASE |
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WHEN f.atthasdef = 't' THEN pg_get_expr(adbin, adrelid) |
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END AS \"Default\" , |
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CASE WHEN pg_get_expr(adbin, adrelid) LIKE 'nextval(%' THEN 'auto_increment' ELSE '' END AS \"Extra\" |
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FROM pg_attribute f |
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JOIN pg_class c ON c.oid = f.attrelid |
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JOIN pg_type t ON t.oid = f.atttypid |
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LEFT JOIN pg_attrdef d ON d.adrelid = c.oid AND d.adnum = f.attnum |
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LEFT JOIN pg_namespace n ON n.oid = c.relnamespace |
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LEFT JOIN pg_constraint p ON p.conrelid = c.oid AND f.attnum = ANY (p.conkey) |
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LEFT JOIN pg_class AS g ON p.confrelid = g.oid |
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LEFT JOIN pg_index AS ix ON f.attnum = ANY(ix.indkey) and c.oid = f.attrelid and c.oid = ix.indrelid |
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LEFT JOIN pg_class AS i ON ix.indexrelid = i.oid |
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WHERE c.relkind = 'r'::char |
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AND n.nspname = 'public' |
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and c.relname='{$tableName}' |
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AND f.attnum > 0 |
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ORDER BY f.attnum;" ); |
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$fields = $recordset->fetchAll ( \PDO::FETCH_ASSOC ); |
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foreach ( $fields as $field ) { |
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$fieldsInfos [$field ['Field']] = [ "Type" => $field ['Type'],"Nullable" => $field ["Null"] ]; |
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} |
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return $fieldsInfos; |
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} |
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public function getRowNum(string $tableName, string $pkName, string $condition): int { |
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$query = $this->dbInstance->query ( "SELECT num FROM (SELECT *,row_number() OVER (ORDER BY {$pkName}) AS num FROM \"{$tableName}\") x where " . $condition ); |
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if ($query) { |
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return $query->fetchColumn ( 0 ); |
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} |
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return 0; |
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} |
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public function groupConcat(string $fields, string $separator): string { |
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return "array_to_string(array_agg({$fields}), '{$separator}')"; |
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} |
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public function toStringOperator() { |
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return '::TEXT '; |
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} |
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} |
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phpMv /
ubiquity
