Class yii\db\pgsql\Schema
| Inheritance | yii\db\pgsql\Schema » yii\db\Schema » yii\base\BaseObject |
|---|---|
| Implements | yii\base\Configurable, yii\db\ConstraintFinderInterface |
| Uses Traits | yii\db\ConstraintFinderTrait, yii\db\ViewFinderTrait |
| Available since version | 2.0 |
| Source Code | https://github.com/yiisoft/yii2/blob/master/framework/db/pgsql/Schema.php |
Schema is the class for retrieving metadata from a PostgreSQL database (version 9.x and above).
Public Properties
| Property | Type | Description | Defined By |
|---|---|---|---|
| $columnSchemaClass | string|array | Column schema class or class config | yii\db\pgsql\Schema |
| $db | yii\db\Connection | The database connection | yii\db\Schema |
| $defaultSchema | string | The default schema used for the current session. | yii\db\pgsql\Schema |
| $exceptionMap | array | Map of DB errors and corresponding exceptions If left part is found in DB error message exception class from the right part is used. | yii\db\Schema |
| $lastInsertID | string | The row ID of the last row inserted, or the last value retrieved from the sequence object. | yii\db\Schema |
| $queryBuilder | yii\db\QueryBuilder | The query builder for this connection. | yii\db\Schema |
| $schemaChecks | \yii\db\CheckConstraint[][] | Check constraints for all tables in the database. Each array element is an array of yii\db\CheckConstraint or its child classes. This property is read-only. | yii\db\ConstraintFinderTrait |
| $schemaDefaultValues | yii\db\DefaultValueConstraint[] | Default value constraints for all tables in the database. Each array element is an array of yii\db\DefaultValueConstraint or its child classes. This property is read-only. | yii\db\ConstraintFinderTrait |
| $schemaForeignKeys | \yii\db\ForeignKeyConstraint[][] | Foreign keys for all tables in the database. Each array element is an array of yii\db\ForeignKeyConstraint or its child classes. This property is read-only. | yii\db\ConstraintFinderTrait |
| $schemaIndexes | \yii\db\IndexConstraint[][] | Indexes for all tables in the database. Each array element is an array of yii\db\IndexConstraint or its child classes. This property is read-only. | yii\db\ConstraintFinderTrait |
| $schemaNames | string[] | All schema names in the database, except system schemas. | yii\db\Schema |
| $schemaPrimaryKeys | yii\db\Constraint[] | Primary keys for all tables in the database. Each array element is an instance of yii\db\Constraint or its child class. This property is read-only. | yii\db\ConstraintFinderTrait |
| $schemaUniques | \yii\db\IndexConstraint[][] | Unique constraints for all tables in the database. Each array element is an array of yii\db\IndexConstraint or its child classes. This property is read-only. | yii\db\ConstraintFinderTrait |
| $serverVersion | string | Server version as a string. | yii\db\Schema |
| $tableNames | string[] | All table names in the database. | yii\db\Schema |
| $tableSchemas | yii\db\TableSchema[] | The metadata for all tables in the database. Each array element is an instance of yii\db\TableSchema or its child class. | yii\db\Schema |
| $transactionIsolationLevel | string | The transaction isolation level to use for this
transaction. This can be one of yii\db\Transaction::READ_UNCOMMITTED, yii\db\Transaction::READ_COMMITTED,
yii\db\Transaction::REPEATABLE_READ and yii\db\Transaction::SERIALIZABLE but also a string containing DBMS specific
syntax to be used after SET TRANSACTION ISOLATION LEVEL. |
yii\db\Schema |
| $typeMap | array | Mapping from physical column types (keys) to abstract column types (values) | yii\db\pgsql\Schema |
| $viewNames | string[] | All view names in the database. | yii\db\ViewFinderTrait |
Protected Properties
| Property | Type | Description | Defined By |
|---|---|---|---|
| $columnQuoteCharacter | string|string[] | Character used to quote column names. | yii\db\Schema |
| $tableQuoteCharacter | string|string[] | Character used to quote schema, table, etc. | yii\db\pgsql\Schema |
Public Methods
| Method | Description | Defined By |
|---|---|---|
| __call() | Calls the named method which is not a class method. | yii\base\BaseObject |
| __construct() | Constructor. | yii\base\BaseObject |
| __get() | Returns the value of an object property. | yii\base\BaseObject |
| __isset() | Checks if a property is set, i.e. defined and not null. | yii\base\BaseObject |
| __set() | Sets value of an object property. | yii\base\BaseObject |
| __unset() | Sets an object property to null. | yii\base\BaseObject |
| canGetProperty() | Returns a value indicating whether a property can be read. | yii\base\BaseObject |
| canSetProperty() | Returns a value indicating whether a property can be set. | yii\base\BaseObject |
| className() | Returns the fully qualified name of this class. | yii\base\BaseObject |
| convertException() | Converts a DB exception to a more concrete one if possible. | yii\db\Schema |
| createColumnSchemaBuilder() | Create a column schema builder instance giving the type and value precision. | yii\db\Schema |
| createQueryBuilder() | Creates a query builder for the PostgreSQL database. | yii\db\pgsql\Schema |
| createSavepoint() | Creates a new savepoint. | yii\db\Schema |
| findUniqueIndexes() | Returns all unique indexes for the given table. | yii\db\pgsql\Schema |
| getLastInsertID() | Returns the ID of the last inserted row or sequence value. | yii\db\Schema |
| getPdoType() | Determines the PDO type for the given PHP data value. | yii\db\Schema |
| getQueryBuilder() | yii\db\Schema | |
| getRawTableName() | Returns the actual name of a given table name. | yii\db\Schema |
| getSchemaChecks() | Returns check constraints for all tables in the database. | yii\db\ConstraintFinderTrait |
| getSchemaDefaultValues() | Returns default value constraints for all tables in the database. | yii\db\ConstraintFinderTrait |
| getSchemaForeignKeys() | Returns foreign keys for all tables in the database. | yii\db\ConstraintFinderTrait |
| getSchemaIndexes() | Returns indexes for all tables in the database. | yii\db\ConstraintFinderTrait |
| getSchemaNames() | Returns all schema names in the database, except system schemas. | yii\db\Schema |
| getSchemaPrimaryKeys() | Returns primary keys for all tables in the database. | yii\db\ConstraintFinderTrait |
| getSchemaUniques() | Returns unique constraints for all tables in the database. | yii\db\ConstraintFinderTrait |
| getServerVersion() | Returns a server version as a string comparable by \version_compare(). | yii\db\Schema |
| getTableChecks() | Obtains the check constraints information for the named table. | yii\db\ConstraintFinderTrait |
| getTableDefaultValues() | Obtains the default value constraints information for the named table. | yii\db\ConstraintFinderTrait |
| getTableForeignKeys() | Obtains the foreign keys information for the named table. | yii\db\ConstraintFinderTrait |
| getTableIndexes() | Obtains the indexes information for the named table. | yii\db\ConstraintFinderTrait |
| getTableNames() | Returns all table names in the database. | yii\db\Schema |
| getTablePrimaryKey() | Obtains the primary key for the named table. | yii\db\ConstraintFinderTrait |
| getTableSchema() | Obtains the metadata for the named table. | yii\db\Schema |
| getTableSchemas() | Returns the metadata for all tables in the database. | yii\db\Schema |
| getTableUniques() | Obtains the unique constraints information for the named table. | yii\db\ConstraintFinderTrait |
| getViewNames() | Returns all view names in the database. | yii\db\ViewFinderTrait |
| hasMethod() | Returns a value indicating whether a method is defined. | yii\base\BaseObject |
| hasProperty() | Returns a value indicating whether a property is defined. | yii\base\BaseObject |
| init() | Initializes the object. | yii\base\BaseObject |
| insert() | Executes the INSERT command, returning primary key values. | yii\db\pgsql\Schema |
| isReadQuery() | Returns a value indicating whether a SQL statement is for read purpose. | yii\db\Schema |
| quoteColumnName() | Quotes a column name for use in a query. | yii\db\Schema |
| quoteSimpleColumnName() | Quotes a simple column name for use in a query. | yii\db\Schema |
| quoteSimpleTableName() | Quotes a simple table name for use in a query. | yii\db\Schema |
| quoteTableName() | Quotes a table name for use in a query. | yii\db\Schema |
| quoteValue() | Quotes a string value for use in a query. | yii\db\Schema |
| refresh() | Refreshes the schema. | yii\db\Schema |
| refreshTableSchema() | Refreshes the particular table schema. | yii\db\Schema |
| releaseSavepoint() | Releases an existing savepoint. | yii\db\Schema |
| rollBackSavepoint() | Rolls back to a previously created savepoint. | yii\db\Schema |
| setTransactionIsolationLevel() | Sets the isolation level of the current transaction. | yii\db\Schema |
| supportsSavepoint() | yii\db\Schema | |
| unquoteSimpleColumnName() | Unquotes a simple column name. | yii\db\Schema |
| unquoteSimpleTableName() | Unquotes a simple table name. | yii\db\Schema |
Protected Methods
| Method | Description | Defined By |
|---|---|---|
| createColumnSchema() | Creates a column schema for the database. | yii\db\Schema |
| findColumns() | Collects the metadata of table columns. | yii\db\pgsql\Schema |
| findConstraints() | Collects the foreign key column details for the given table. | yii\db\pgsql\Schema |
| findSchemaNames() | Returns all schema names in the database, including the default one but not system schemas. | yii\db\pgsql\Schema |
| findTableNames() | Returns all table names in the database. | yii\db\pgsql\Schema |
| findViewNames() | {@inheritdoc] | yii\db\pgsql\Schema |
| getCacheKey() | Returns the cache key for the specified table name. | yii\db\Schema |
| getCacheTag() | Returns the cache tag name. | yii\db\Schema |
| getColumnPhpType() | Extracts the PHP type from abstract DB type. | yii\db\Schema |
| getSchemaMetadata() | Returns the metadata of the given type for all tables in the given schema. | yii\db\ConstraintFinderTrait |
| getTableMetadata() | Returns the metadata of the given type for the given table. | yii\db\ConstraintFinderTrait |
| getTableNameParts() | Splits full table name into parts | yii\db\Schema |
| getUniqueIndexInformation() | Gets information about given table unique indexes. | yii\db\pgsql\Schema |
| loadColumnSchema() | Loads the column information into a yii\db\pgsql\ColumnSchema object. | yii\db\pgsql\Schema |
| loadTableChecks() | yii\db\pgsql\Schema | |
| loadTableDefaultValues() | yii\db\pgsql\Schema | |
| loadTableForeignKeys() | yii\db\pgsql\Schema | |
| loadTableIndexes() | yii\db\pgsql\Schema | |
| loadTablePrimaryKey() | yii\db\pgsql\Schema | |
| loadTableSchema() | Loads the metadata for the specified table. | yii\db\pgsql\Schema |
| loadTableUniques() | yii\db\pgsql\Schema | |
| normalizePdoRowKeyCase() | Changes row's array key case to lower if PDO's one is set to uppercase. | yii\db\Schema |
| resolveTableName() | Resolves the table name and schema name (if any). | yii\db\pgsql\Schema |
| resolveTableNames() | Resolves the table name and schema name (if any). | yii\db\pgsql\Schema |
| setTableMetadata() | Sets the metadata of the given type for the given table. | yii\db\Schema |
Constants
| Constant | Value | Description | Defined By |
|---|---|---|---|
| SCHEMA_CACHE_VERSION | 1 | Schema cache version, to detect incompatibilities in cached values when the data format of the cache changes. | yii\db\Schema |
| TYPE_BIGINT | 'bigint' | yii\db\Schema | |
| TYPE_BIGPK | 'bigpk' | yii\db\Schema | |
| TYPE_BINARY | 'binary' | yii\db\Schema | |
| TYPE_BOOLEAN | 'boolean' | yii\db\Schema | |
| TYPE_CHAR | 'char' | yii\db\Schema | |
| TYPE_DATE | 'date' | yii\db\Schema | |
| TYPE_DATETIME | 'datetime' | yii\db\Schema | |
| TYPE_DECIMAL | 'decimal' | yii\db\Schema | |
| TYPE_DOUBLE | 'double' | yii\db\Schema | |
| TYPE_FLOAT | 'float' | yii\db\Schema | |
| TYPE_INTEGER | 'integer' | yii\db\Schema | |
| TYPE_JSON | 'json' | yii\db\Schema | |
| TYPE_JSONB | 'jsonb' | yii\db\pgsql\Schema | |
| TYPE_MONEY | 'money' | yii\db\Schema | |
| TYPE_PK | 'pk' | yii\db\Schema | |
| TYPE_SMALLINT | 'smallint' | yii\db\Schema | |
| TYPE_STRING | 'string' | yii\db\Schema | |
| TYPE_TEXT | 'text' | yii\db\Schema | |
| TYPE_TIME | 'time' | yii\db\Schema | |
| TYPE_TIMESTAMP | 'timestamp' | yii\db\Schema | |
| TYPE_TINYINT | 'tinyint' | yii\db\Schema | |
| TYPE_UBIGPK | 'ubigpk' | yii\db\Schema | |
| TYPE_UPK | 'upk' | yii\db\Schema |
Property Details
Column schema class or class config
The default schema used for the current session.
Character used to quote schema, table, etc. names. An array of 2 characters can be used in case starting and ending characters are different.
Mapping from physical column types (keys) to abstract column types (values)
See also http://www.postgresql.org/docs/current/static/datatype.html#DATATYPE-TABLE.
public array $typeMap = [
'bit' => self::TYPE_INTEGER, 'bit varying' => self::TYPE_INTEGER, 'varbit' => self::TYPE_INTEGER, 'bool' => self::TYPE_BOOLEAN, 'boolean' => self::TYPE_BOOLEAN, 'box' => self::TYPE_STRING, 'circle' => self::TYPE_STRING, 'point' => self::TYPE_STRING, 'line' => self::TYPE_STRING, 'lseg' => self::TYPE_STRING, 'polygon' => self::TYPE_STRING, 'path' => self::TYPE_STRING, 'character' => self::TYPE_CHAR, 'char' => self::TYPE_CHAR, 'bpchar' => self::TYPE_CHAR, 'character varying' => self::TYPE_STRING, 'varchar' => self::TYPE_STRING, 'text' => self::TYPE_TEXT, 'bytea' => self::TYPE_BINARY, 'cidr' => self::TYPE_STRING, 'inet' => self::TYPE_STRING, 'macaddr' => self::TYPE_STRING, 'real' => self::TYPE_FLOAT, 'float4' => self::TYPE_FLOAT, 'double precision' => self::TYPE_DOUBLE, 'float8' => self::TYPE_DOUBLE, 'decimal' => self::TYPE_DECIMAL, 'numeric' => self::TYPE_DECIMAL, 'money' => self::TYPE_MONEY, 'smallint' => self::TYPE_SMALLINT, 'int2' => self::TYPE_SMALLINT, 'int4' => self::TYPE_INTEGER, 'int' => self::TYPE_INTEGER, 'integer' => self::TYPE_INTEGER, 'bigint' => self::TYPE_BIGINT, 'int8' => self::TYPE_BIGINT, 'oid' => self::TYPE_BIGINT, 'smallserial' => self::TYPE_SMALLINT, 'serial2' => self::TYPE_SMALLINT, 'serial4' => self::TYPE_INTEGER, 'serial' => self::TYPE_INTEGER, 'bigserial' => self::TYPE_BIGINT, 'serial8' => self::TYPE_BIGINT, 'pg_lsn' => self::TYPE_BIGINT, 'date' => self::TYPE_DATE, 'interval' => self::TYPE_STRING, 'time without time zone' => self::TYPE_TIME, 'time' => self::TYPE_TIME, 'time with time zone' => self::TYPE_TIME, 'timetz' => self::TYPE_TIME, 'timestamp without time zone' => self::TYPE_TIMESTAMP, 'timestamp' => self::TYPE_TIMESTAMP, 'timestamp with time zone' => self::TYPE_TIMESTAMP, 'timestamptz' => self::TYPE_TIMESTAMP, 'abstime' => self::TYPE_TIMESTAMP, 'tsquery' => self::TYPE_STRING, 'tsvector' => self::TYPE_STRING, 'txid_snapshot' => self::TYPE_STRING, 'unknown' => self::TYPE_STRING, 'uuid' => self::TYPE_STRING, 'json' => self::TYPE_JSON, 'jsonb' => self::TYPE_JSON, 'xml' => self::TYPE_STRING
]
'bit' => self::TYPE_INTEGER, 'bit varying' => self::TYPE_INTEGER, 'varbit' => self::TYPE_INTEGER, 'bool' => self::TYPE_BOOLEAN, 'boolean' => self::TYPE_BOOLEAN, 'box' => self::TYPE_STRING, 'circle' => self::TYPE_STRING, 'point' => self::TYPE_STRING, 'line' => self::TYPE_STRING, 'lseg' => self::TYPE_STRING, 'polygon' => self::TYPE_STRING, 'path' => self::TYPE_STRING, 'character' => self::TYPE_CHAR, 'char' => self::TYPE_CHAR, 'bpchar' => self::TYPE_CHAR, 'character varying' => self::TYPE_STRING, 'varchar' => self::TYPE_STRING, 'text' => self::TYPE_TEXT, 'bytea' => self::TYPE_BINARY, 'cidr' => self::TYPE_STRING, 'inet' => self::TYPE_STRING, 'macaddr' => self::TYPE_STRING, 'real' => self::TYPE_FLOAT, 'float4' => self::TYPE_FLOAT, 'double precision' => self::TYPE_DOUBLE, 'float8' => self::TYPE_DOUBLE, 'decimal' => self::TYPE_DECIMAL, 'numeric' => self::TYPE_DECIMAL, 'money' => self::TYPE_MONEY, 'smallint' => self::TYPE_SMALLINT, 'int2' => self::TYPE_SMALLINT, 'int4' => self::TYPE_INTEGER, 'int' => self::TYPE_INTEGER, 'integer' => self::TYPE_INTEGER, 'bigint' => self::TYPE_BIGINT, 'int8' => self::TYPE_BIGINT, 'oid' => self::TYPE_BIGINT, 'smallserial' => self::TYPE_SMALLINT, 'serial2' => self::TYPE_SMALLINT, 'serial4' => self::TYPE_INTEGER, 'serial' => self::TYPE_INTEGER, 'bigserial' => self::TYPE_BIGINT, 'serial8' => self::TYPE_BIGINT, 'pg_lsn' => self::TYPE_BIGINT, 'date' => self::TYPE_DATE, 'interval' => self::TYPE_STRING, 'time without time zone' => self::TYPE_TIME, 'time' => self::TYPE_TIME, 'time with time zone' => self::TYPE_TIME, 'timetz' => self::TYPE_TIME, 'timestamp without time zone' => self::TYPE_TIMESTAMP, 'timestamp' => self::TYPE_TIMESTAMP, 'timestamp with time zone' => self::TYPE_TIMESTAMP, 'timestamptz' => self::TYPE_TIMESTAMP, 'abstime' => self::TYPE_TIMESTAMP, 'tsquery' => self::TYPE_STRING, 'tsvector' => self::TYPE_STRING, 'txid_snapshot' => self::TYPE_STRING, 'unknown' => self::TYPE_STRING, 'uuid' => self::TYPE_STRING, 'json' => self::TYPE_JSON, 'jsonb' => self::TYPE_JSON, 'xml' => self::TYPE_STRING
]
Method Details
Creates a query builder for the PostgreSQL database.
| public yii\db\pgsql\QueryBuilder createQueryBuilder ( ) | ||
| return | yii\db\pgsql\QueryBuilder | Query builder instance |
|---|---|---|
Collects the metadata of table columns.
| protected boolean findColumns ( $table ) | ||
| $table | yii\db\TableSchema | The table metadata |
| return | boolean | Whether the table exists in the database |
|---|---|---|
Collects the foreign key column details for the given table.
| protected void findConstraints ( $table ) | ||
| $table | yii\db\TableSchema | The table metadata |
Returns all schema names in the database, including the default one but not system schemas.
This method should be overridden by child classes in order to support this feature because the default implementation simply throws an exception.
| protected array findSchemaNames ( ) | ||
| return | array | All schema names in the database, except system schemas. |
|---|---|---|
| throws | yii\base\NotSupportedException | if this method is not supported by the DBMS. |
Returns all table names in the database.
This method should be overridden by child classes in order to support this feature because the default implementation simply throws an exception.
| protected array findTableNames ( $schema = '' ) | ||
| $schema | string | The schema of the tables. Defaults to empty string, meaning the current or default schema. |
| return | array | All table names in the database. The names have NO schema name prefix. |
|---|---|---|
| throws | yii\base\NotSupportedException | if this method is not supported by the DBMS. |
Returns all unique indexes for the given table.
Each array element is of the following structure:
[
'IndexName1' => ['col1' [, ...]],
'IndexName2' => ['col2' [, ...]],
]
| public array findUniqueIndexes ( $table ) | ||
| $table | yii\db\TableSchema | The table metadata |
| return | array | All unique indexes for the given table. |
|---|---|---|
{@inheritdoc]
| protected void findViewNames ( $schema = '' ) | ||
| $schema | ||
Gets information about given table unique indexes.
| protected array getUniqueIndexInformation ( $table ) | ||
| $table | yii\db\TableSchema | The table metadata |
| return | array | With index and column names |
|---|---|---|
Executes the INSERT command, returning primary key values.
| public array|false insert ( $table, $columns ) | ||
| $table | string | The table that new rows will be inserted into. |
| $columns | array | The column data (name => value) to be inserted into the table. |
| return | array|false | Primary key values or false if the command fails |
|---|---|---|
Loads the column information into a yii\db\pgsql\ColumnSchema object.
| protected yii\db\pgsql\ColumnSchema loadColumnSchema ( $info ) | ||
| $info | array | Column information |
| return | yii\db\pgsql\ColumnSchema | The column schema object |
|---|---|---|
| protected void loadTableChecks ( $tableName ) | ||
| $tableName | ||
| protected void loadTableDefaultValues ( $tableName ) | ||
| $tableName | ||
| throws | yii\base\NotSupportedException | if this method is called. |
|---|---|---|
| protected void loadTableForeignKeys ( $tableName ) | ||
| $tableName | ||
| protected void loadTableIndexes ( $tableName ) | ||
| $tableName | ||
| protected void loadTablePrimaryKey ( $tableName ) | ||
| $tableName | ||
Loads the metadata for the specified table.
| protected yii\db\TableSchema|null loadTableSchema ( $name ) | ||
| $name | string | Table name |
| return | yii\db\TableSchema|null | DBMS-dependent table metadata, |
|---|---|---|
| protected void loadTableUniques ( $tableName ) | ||
| $tableName | ||
Resolves the table name and schema name (if any).
| protected yii\db\TableSchema resolveTableName ( $name ) | ||
| $name | string | The table name |
| return | yii\db\TableSchema | yii\db\TableSchema with resolved table, schema, etc. names. |
|---|---|---|
| throws | yii\base\NotSupportedException | if this method is not supported by the DBMS. |
Resolves the table name and schema name (if any).
| protected void resolveTableNames ( $table, $name ) | ||
| $table | yii\db\TableSchema | The table metadata object |
| $name | string | The table name |