HumHub Documentation (unofficial)

Schema extends BaseObject
in package

Application

AbstractYes

Schema is the base class for concrete DBMS-specific schema classes.

Schema represents the database schema information that is DBMS specific.

Constants

SCHEMA_CACHE_VERSION = 1: Schema cache version, to detect incompatibilities in cached values when the data format of the cache changes.
TYPE_BIGINT = 'bigint'
TYPE_BIGPK = 'bigpk'
TYPE_BINARY = 'binary'
TYPE_BOOLEAN = 'boolean'
TYPE_CHAR = 'char'
TYPE_DATE = 'date'
TYPE_DATETIME = 'datetime'
TYPE_DECIMAL = 'decimal'
TYPE_DOUBLE = 'double'
TYPE_FLOAT = 'float'
TYPE_INTEGER = 'integer'
TYPE_JSON = 'json'
TYPE_MONEY = 'money'
TYPE_PK = 'pk'
TYPE_SMALLINT = 'smallint'
TYPE_STRING = 'string'
TYPE_TEXT = 'text'
TYPE_TIME = 'time'
TYPE_TIMESTAMP = 'timestamp'
TYPE_TINYINT = 'tinyint'
TYPE_UBIGPK = 'ubigpk'
TYPE_UPK = 'upk'

Properties

$columnSchemaClass : string|array<string|int, mixed>
$db : Connection
$defaultSchema : string
$exceptionMap : array<string|int, mixed>
$lastInsertID : string
$queryBuilder : QueryBuilder
$schemaNames : array<string|int, string>
$serverVersion : string
$tableNames : array<string|int, string>
$tableSchemas : array<string|int, TableSchema>
$transactionIsolationLevel : string
$columnQuoteCharacter : string|array<string|int, string>
$tableQuoteCharacter : string|array<string|int, string>
$_builder : QueryBuilder
$_schemaNames : array<string|int, mixed>
$_serverVersion : string
$_tableMetadata : array<string|int, mixed>
$_tableNames : array<string|int, mixed>

Methods

__call() : mixed: Calls the named method which is not a class method.
__construct() : mixed: Constructor.
__get() : mixed: Returns the value of an object property.
__isset() : bool: Checks if a property is set, i.e. defined and not null.
__set() : mixed: Sets value of an object property.
__unset() : mixed: Sets an object property to null.
canGetProperty() : bool: Returns a value indicating whether a property can be read.
canSetProperty() : bool: Returns a value indicating whether a property can be set.
className() : string: Returns the fully qualified name of this class.
convertException() : Exception: Converts a DB exception to a more concrete one if possible.
createColumnSchemaBuilder() : ColumnSchemaBuilder: Create a column schema builder instance giving the type and value precision.
createQueryBuilder() : QueryBuilder: Creates a query builder for the database.
createSavepoint() : mixed: Creates a new savepoint.
findUniqueIndexes() : array<string|int, mixed>: Returns all unique indexes for the given table.
getLastInsertID() : string: Returns the ID of the last inserted row or sequence value.
getPdoType() : int: Determines the PDO type for the given PHP data value.
getQueryBuilder() : QueryBuilder
getRawTableName() : string: Returns the actual name of a given table name.
getSchemaNames() : array<string|int, string>: Returns all schema names in the database, except system schemas.
getServerVersion() : string: Returns a server version as a string comparable by [[\version_compare()]].
getTableNames() : array<string|int, string>: Returns all table names in the database.
getTableSchema() : TableSchema|null: Obtains the metadata for the named table.
getTableSchemas() : array<string|int, TableSchema>: Returns the metadata for all tables in the database.
hasMethod() : bool: Returns a value indicating whether a method is defined.
hasProperty() : bool: Returns a value indicating whether a property is defined.
init() : mixed: Initializes the object.
insert() : array<string|int, mixed>|false: Executes the INSERT command, returning primary key values.
isReadQuery() : bool: Returns a value indicating whether a SQL statement is for read purpose.
quoteColumnName() : string: Quotes a column name for use in a query.
quoteSimpleColumnName() : string: Quotes a simple column name for use in a query.
quoteSimpleTableName() : string: Quotes a simple table name for use in a query.
quoteTableName() : string: Quotes a table name for use in a query.
quoteValue() : string: Quotes a string value for use in a query.
refresh() : mixed: Refreshes the schema.
refreshTableSchema() : mixed: Refreshes the particular table schema.
releaseSavepoint() : mixed: Releases an existing savepoint.
rollBackSavepoint() : mixed: Rolls back to a previously created savepoint.
setTransactionIsolationLevel() : mixed: Sets the isolation level of the current transaction.
supportsSavepoint() : bool
unquoteSimpleColumnName() : string: Unquotes a simple column name.
unquoteSimpleTableName() : string: Unquotes a simple table name.
createColumnSchema() : ColumnSchema: Creates a column schema for the database.
findSchemaNames() : array<string|int, mixed>: Returns all schema names in the database, including the default one but not system schemas.
findTableNames() : array<string|int, mixed>: Returns all table names in the database.
getCacheKey() : mixed: Returns the cache key for the specified table name.
getCacheTag() : string: Returns the cache tag name.
getColumnPhpType() : string: Extracts the PHP type from abstract DB type.
getSchemaMetadata() : array<string|int, mixed>: Returns the metadata of the given type for all tables in the given schema.
getTableMetadata() : mixed: Returns the metadata of the given type for the given table.
getTableNameParts() : array<string|int, mixed>: Splits full table name into parts
loadTableSchema() : TableSchema|null: Loads the metadata for the specified table.
normalizePdoRowKeyCase() : array<string|int, mixed>: Changes row's array key case to lower if PDO's one is set to uppercase.
resolveTableName() : TableSchema: Resolves the table name and schema name (if any).
setTableMetadata() : mixed: Sets the metadata of the given type for the given table.
loadTableMetadataFromCache() : mixed: Tries to load and populate table metadata from cache.
saveTableMetadataToCache() : mixed: Saves table metadata to cache.

SCHEMA_CACHE_VERSION

Schema cache version, to detect incompatibilities in cached values when the data format of the cache changes.


    public
        mixed
    SCHEMA_CACHE_VERSION
    = 1

TYPE_BIGINT


    public
        mixed
    TYPE_BIGINT
    = 'bigint'

TYPE_BIGPK


    public
        mixed
    TYPE_BIGPK
    = 'bigpk'

TYPE_BINARY


    public
        mixed
    TYPE_BINARY
    = 'binary'

TYPE_BOOLEAN


    public
        mixed
    TYPE_BOOLEAN
    = 'boolean'

TYPE_CHAR


    public
        mixed
    TYPE_CHAR
    = 'char'

TYPE_DATE


    public
        mixed
    TYPE_DATE
    = 'date'

TYPE_DATETIME


    public
        mixed
    TYPE_DATETIME
    = 'datetime'

TYPE_DECIMAL


    public
        mixed
    TYPE_DECIMAL
    = 'decimal'

TYPE_DOUBLE


    public
        mixed
    TYPE_DOUBLE
    = 'double'

TYPE_FLOAT


    public
        mixed
    TYPE_FLOAT
    = 'float'

TYPE_INTEGER


    public
        mixed
    TYPE_INTEGER
    = 'integer'

TYPE_JSON


    public
        mixed
    TYPE_JSON
    = 'json'

TYPE_MONEY


    public
        mixed
    TYPE_MONEY
    = 'money'

TYPE_PK


    public
        mixed
    TYPE_PK
    = 'pk'

TYPE_SMALLINT


    public
        mixed
    TYPE_SMALLINT
    = 'smallint'

TYPE_STRING


    public
        mixed
    TYPE_STRING
    = 'string'

TYPE_TEXT


    public
        mixed
    TYPE_TEXT
    = 'text'

TYPE_TIME


    public
        mixed
    TYPE_TIME
    = 'time'

TYPE_TIMESTAMP


    public
        mixed
    TYPE_TIMESTAMP
    = 'timestamp'

TYPE_TINYINT


    public
        mixed
    TYPE_TINYINT
    = 'tinyint'

TYPE_UBIGPK


    public
        mixed
    TYPE_UBIGPK
    = 'ubigpk'

TYPE_UPK


    public
        mixed
    TYPE_UPK
    = 'upk'

$columnSchemaClass


    public
        string|array<string|int, mixed>
    $columnSchemaClass
     = 'yii\db\ColumnSchema'

column schema class or class config

$db


    public
        Connection
    $db

the database connection

$defaultSchema


    public
        string
    $defaultSchema

the default schema name used for the current session.

$exceptionMap


    public
        array<string|int, mixed>
    $exceptionMap
     = ['SQLSTATE[23' => 'yii\db\IntegrityException']

map of DB errors and corresponding exceptions If left part is found in DB error message exception class from the right part is used.

$lastInsertID read-only


    public
        string
    $lastInsertID

The row ID of the last row inserted, or the last value retrieved from the sequence object.

$queryBuilder read-only


    public
        QueryBuilder
    $queryBuilder

The query builder for this connection.

$schemaNames read-only


    public
        array<string|int, string>
    $schemaNames

All schema names in the database, except system schemas.

$serverVersion read-only


    public
        string
    $serverVersion

Server version as a string.

$tableNames read-only


    public
        array<string|int, string>
    $tableNames

All table names in the database.

$tableSchemas read-only


    public
        array<string|int, TableSchema>
    $tableSchemas

The metadata for all tables in the database. Each array element is an instance of [[TableSchema]] or its child class.

$transactionIsolationLevel write-only


    public
        string
    $transactionIsolationLevel

The transaction isolation level to use for this transaction. This can be one of [[Transaction::READ_UNCOMMITTED]], [[Transaction::READ_COMMITTED]], [[Transaction::REPEATABLE_READ]] and [[Transaction::SERIALIZABLE]] but also a string containing DBMS specific syntax to be used after SET TRANSACTION ISOLATION LEVEL.

$columnQuoteCharacter


    protected
        string|array<string|int, string>
    $columnQuoteCharacter
     = '"'

character used to quote column names. An array of 2 characters can be used in case starting and ending characters are different.

$tableQuoteCharacter


    protected
        string|array<string|int, string>
    $tableQuoteCharacter
     = "'"

character used to quote schema, table, etc. names. An array of 2 characters can be used in case starting and ending characters are different.

$_builder


    private
        QueryBuilder
    $_builder

the query builder for this database

$_schemaNames


    private
        array<string|int, mixed>
    $_schemaNames

list of ALL schema names in the database, except system schemas

$_serverVersion


    private
        string
    $_serverVersion

server version as a string.

$_tableMetadata


    private
        array<string|int, mixed>
    $_tableMetadata
     = []

list of loaded table metadata (table name => metadata type => metadata).

$_tableNames


    private
        array<string|int, mixed>
    $_tableNames
     = []

list of ALL table names in the database

__call()

Calls the named method which is not a class method.


    public
                    __call(string $name, array<string|int, mixed> $params) : mixed

Do not call this method directly as it is a PHP magic method that will be implicitly called when an unknown method is being invoked.

Parameters

$name : string: the method name
$params : array<string|int, mixed>: method parameters

Return values

mixed —

the method return value

__construct()

Constructor.


    public
                    __construct([array<string|int, mixed> $config = [] ]) : mixed

The default implementation does two things:

Initializes the object with the given configuration $config.
Call [[init()]].

If this method is overridden in a child class, it is recommended that

the last parameter of the constructor is a configuration array, like $config here.
call the parent implementation at the end of the constructor.

Parameters

$config : array<string|int, mixed> = []: name-value pairs that will be used to initialize the object properties

__get()

Returns the value of an object property.


    public
                    __get(string $name) : mixed

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing $value = $object->property;.

Parameters

$name : string: the property name

Return values

mixed —

the property value

__isset()

Checks if a property is set, i.e. defined and not null.


    public
                    __isset(string $name) : bool

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing isset($object->property).

Note that if the property is not defined, false will be returned.

Parameters

$name : string: the property name or the event name

Return values

bool —

whether the named property is set (not null).

__set()

Sets value of an object property.


    public
                    __set(string $name, mixed $value) : mixed

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing $object->property = $value;.

Parameters

$name : string: the property name or the event name
$value : mixed: the property value

__unset()

Sets an object property to null.


    public
                    __unset(string $name) : mixed

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing unset($object->property).

Note that if the property is not defined, this method will do nothing. If the property is read-only, it will throw an exception.

Parameters

$name : string: the property name

canGetProperty()

Returns a value indicating whether a property can be read.


    public
                    canGetProperty(string $name[, bool $checkVars = true ]) : bool

A property is readable if:

the class has a getter method associated with the specified name (in this case, property name is case-insensitive);
the class has a member variable with the specified name (when $checkVars is true);

Parameters

$name : string: the property name
$checkVars : bool = true: whether to treat member variables as properties

Return values

bool —

whether the property can be read

canSetProperty()

Returns a value indicating whether a property can be set.


    public
                    canSetProperty(string $name[, bool $checkVars = true ]) : bool

A property is writable if:

the class has a setter method associated with the specified name (in this case, property name is case-insensitive);
the class has a member variable with the specified name (when $checkVars is true);

Parameters

$name : string: the property name
$checkVars : bool = true: whether to treat member variables as properties

Return values

bool —

whether the property can be written

className()

Returns the fully qualified name of this class.


    public
            static        className() : string

Return values

string —

the fully qualified name of this class.

convertException()

Converts a DB exception to a more concrete one if possible.


    public
                    convertException(Exception $e, string $rawSql) : Exception

Parameters

$e : Exception
$rawSql : string: SQL that produced exception

Return values

Exception

createColumnSchemaBuilder()

Create a column schema builder instance giving the type and value precision.


    public
                    createColumnSchemaBuilder(string $type[, int|string|array<string|int, mixed>|null $length = null ]) : ColumnSchemaBuilder

This method may be overridden by child classes to create a DBMS-specific column schema builder.

Parameters

$type : string: type of the column. See [[ColumnSchemaBuilder::$type]].
$length : int|string|array<string|int, mixed>|null = null: length or precision of the column. See [[ColumnSchemaBuilder::$length]].

Return values

ColumnSchemaBuilder —

column schema builder instance

createQueryBuilder()

Creates a query builder for the database.


    public
                    createQueryBuilder() : QueryBuilder

This method may be overridden by child classes to create a DBMS-specific query builder.

Return values

QueryBuilder —

query builder instance

createSavepoint()

Creates a new savepoint.


    public
                    createSavepoint(string $name) : mixed

Parameters

$name : string: the savepoint name

findUniqueIndexes()

Returns all unique indexes for the given table.


    public
                    findUniqueIndexes(TableSchema $table) : array<string|int, mixed>

Each array element is of the following structure:

[
 'IndexName1' => ['col1' [, ...]],
 'IndexName2' => ['col2' [, ...]],
]

This method should be overridden by child classes in order to support this feature because the default implementation simply throws an exception

Parameters

$table : TableSchema: the table metadata

Return values

array<string|int, mixed> —

all unique indexes for the given table.

getLastInsertID()

Returns the ID of the last inserted row or sequence value.


    public
                    getLastInsertID([string $sequenceName = '' ]) : string

Parameters

$sequenceName : string = '': name of the sequence object (required by some DBMS)

Return values

string —

the row ID of the last row inserted, or the last value retrieved from the sequence object

getPdoType()

Determines the PDO type for the given PHP data value.


    public
                    getPdoType(mixed $data) : int

Parameters

$data : mixed: the data whose PDO type is to be determined

Return values

int —

the PDO type

getQueryBuilder()


    public
                    getQueryBuilder() : QueryBuilder

Return values

QueryBuilder —

the query builder for this connection.

getRawTableName()

Returns the actual name of a given table name.


    public
                    getRawTableName(string $name) : string

This method will strip off curly brackets from the given table name and replace the percentage character '%' with [[Connection::tablePrefix]].

Parameters

$name : string: the table name to be converted

Return values

string —

the real name of the given table name

getSchemaNames()

Returns all schema names in the database, except system schemas.


    public
                    getSchemaNames([bool $refresh = false ]) : array<string|int, string>

Parameters

$refresh : bool = false: whether to fetch the latest available schema names. If this is false, schema names fetched previously (if available) will be returned.

Return values

array<string|int, string> —

all schema names in the database, except system schemas.

getServerVersion()

Returns a server version as a string comparable by [[\version_compare()]].


    public
                    getServerVersion() : string

Return values

string —

server version as a string.

getTableNames()

Returns all table names in the database.


    public
                    getTableNames([string $schema = '' ][, bool $refresh = false ]) : array<string|int, string>

Parameters

$schema : string = '': the schema of the tables. Defaults to empty string, meaning the current or default schema name. If not empty, the returned table names will be prefixed with the schema name.
$refresh : bool = false: whether to fetch the latest available table names. If this is false, table names fetched previously (if available) will be returned.

Return values

array<string|int, string> —

all table names in the database.

getTableSchema()

Obtains the metadata for the named table.


    public
                    getTableSchema(string $name[, bool $refresh = false ]) : TableSchema|null

Parameters

$name : string: table name. The table name may contain schema name if any. Do not quote the table name.
$refresh : bool = false: whether to reload the table schema even if it is found in the cache.

Return values

TableSchema|null —

table metadata. null if the named table does not exist.

getTableSchemas()

Returns the metadata for all tables in the database.


    public
                    getTableSchemas([string $schema = '' ][, bool $refresh = false ]) : array<string|int, TableSchema>

Parameters

$schema : string = '': the schema of the tables. Defaults to empty string, meaning the current or default schema name.
$refresh : bool = false: whether to fetch the latest available table schemas. If this is false, cached data may be returned if available.

Return values

array<string|int, TableSchema> —

the metadata for all tables in the database. Each array element is an instance of [[TableSchema]] or its child class.

hasMethod()

Returns a value indicating whether a method is defined.


    public
                    hasMethod(string $name) : bool

The default implementation is a call to php function method_exists(). You may override this method when you implemented the php magic method __call().

Parameters

$name : string: the method name

Return values

bool —

whether the method is defined

hasProperty()

Returns a value indicating whether a property is defined.


    public
                    hasProperty(string $name[, bool $checkVars = true ]) : bool

A property is defined if:

the class has a getter or setter method associated with the specified name (in this case, property name is case-insensitive);
the class has a member variable with the specified name (when $checkVars is true);

Parameters

$name : string: the property name
$checkVars : bool = true: whether to treat member variables as properties

Return values

bool —

whether the property is defined

init()

Initializes the object.


    public
                    init() : mixed

This method is invoked at the end of the constructor after the object is initialized with the given configuration.

insert()

Executes the INSERT command, returning primary key values.


    public
                    insert(string $table, array<string|int, mixed> $columns) : array<string|int, mixed>|false

Parameters

$table : string: the table that new rows will be inserted into.
$columns : array<string|int, mixed>: the column data (name => value) to be inserted into the table.

Return values

array<string|int, mixed>|false —

primary key values or false if the command fails

isReadQuery()

Returns a value indicating whether a SQL statement is for read purpose.


    public
                    isReadQuery(string $sql) : bool

Parameters

$sql : string: the SQL statement

Return values

bool —

whether a SQL statement is for read purpose.

quoteColumnName()

Quotes a column name for use in a query.


    public
                    quoteColumnName(string $name) : string

If the column name contains prefix, the prefix will also be properly quoted. If the column name is already quoted or contains '(', '[[' or '{{', then this method will do nothing.

Parameters

$name : string: column name

Return values

string —

the properly quoted column name

quoteSimpleColumnName()

Quotes a simple column name for use in a query.


    public
                    quoteSimpleColumnName(string $name) : string

A simple column name should contain the column name only without any prefix. If the column name is already quoted or is the asterisk character '*', this method will do nothing.

Parameters

$name : string: column name

Return values

string —

the properly quoted column name

quoteSimpleTableName()

Quotes a simple table name for use in a query.


    public
                    quoteSimpleTableName(string $name) : string

A simple table name should contain the table name only without any schema prefix. If the table name is already quoted, this method will do nothing.

Parameters

$name : string: table name

Return values

string —

the properly quoted table name

quoteTableName()

Quotes a table name for use in a query.


    public
                    quoteTableName(string $name) : string

If the table name contains schema prefix, the prefix will also be properly quoted. If the table name is already quoted or contains '(' or '{{', then this method will do nothing.

Parameters

$name : string: table name

Return values

string —

the properly quoted table name

quoteValue()

Quotes a string value for use in a query.


    public
                    quoteValue(string $str) : string

Note that if the parameter is not a string, it will be returned without change.

Parameters

$str : string: string to be quoted

Return values

string —

the properly quoted string

refresh()

Refreshes the schema.


    public
                    refresh() : mixed

This method cleans up all cached table schemas so that they can be re-created later to reflect the database schema change.

refreshTableSchema()

Refreshes the particular table schema.


    public
                    refreshTableSchema(string $name) : mixed

This method cleans up cached table schema so that it can be re-created later to reflect the database schema change.

Parameters

$name : string: table name.

releaseSavepoint()

Releases an existing savepoint.


    public
                    releaseSavepoint(string $name) : mixed

Parameters

$name : string: the savepoint name

rollBackSavepoint()

Rolls back to a previously created savepoint.


    public
                    rollBackSavepoint(string $name) : mixed

Parameters

$name : string: the savepoint name

setTransactionIsolationLevel()

Sets the isolation level of the current transaction.


    public
                    setTransactionIsolationLevel(string $level) : mixed

Parameters

$level : string: The transaction isolation level to use for this transaction. This can be one of [[Transaction::READ_UNCOMMITTED]], [[Transaction::READ_COMMITTED]], [[Transaction::REPEATABLE_READ]] and [[Transaction::SERIALIZABLE]] but also a string containing DBMS specific syntax to be used after SET TRANSACTION ISOLATION LEVEL.

supportsSavepoint()


    public
                    supportsSavepoint() : bool

Return values

bool —

whether this DBMS supports savepoint.

unquoteSimpleColumnName()

Unquotes a simple column name.


    public
                    unquoteSimpleColumnName(string $name) : string

A simple column name should contain the column name only without any prefix. If the column name is not quoted or is the asterisk character '*', this method will do nothing.

Parameters

$name : string: column name.

Return values

string —

unquoted column name.

unquoteSimpleTableName()

Unquotes a simple table name.


    public
                    unquoteSimpleTableName(string $name) : string

A simple table name should contain the table name only without any schema prefix. If the table name is not quoted, this method will do nothing.

Parameters

$name : string: table name.

Return values

string —

unquoted table name.

createColumnSchema()

Creates a column schema for the database.


    protected
                    createColumnSchema() : ColumnSchema

This method may be overridden by child classes to create a DBMS-specific column schema.

Return values

ColumnSchema —

column schema instance.

findSchemaNames()

Returns all schema names in the database, including the default one but not system schemas.


    protected
                    findSchemaNames() : array<string|int, mixed>

This method should be overridden by child classes in order to support this feature because the default implementation simply throws an exception.

Return values

array<string|int, mixed> —

all schema names in the database, except system schemas.

findTableNames()

Returns all table names in the database.


    protected
                    findTableNames([string $schema = '' ]) : array<string|int, mixed>

This method should be overridden by child classes in order to support this feature because the default implementation simply throws an exception.

Parameters

$schema : string = '': the schema of the tables. Defaults to empty string, meaning the current or default schema.

Return values

array<string|int, mixed> —

all table names in the database. The names have NO schema name prefix.

getCacheKey()

Returns the cache key for the specified table name.


    protected
                    getCacheKey(string $name) : mixed

Parameters

$name : string: the table name.

Return values

mixed —

the cache key.

getCacheTag()

Returns the cache tag name.


    protected
                    getCacheTag() : string

This allows [[refresh()]] to invalidate all cached table schemas.

Return values

string —

the cache tag name

getColumnPhpType()

Extracts the PHP type from abstract DB type.


    protected
                    getColumnPhpType(ColumnSchema $column) : string

Parameters

$column : ColumnSchema: the column schema information

Return values

string —

PHP type name

getSchemaMetadata()

Returns the metadata of the given type for all tables in the given schema.


    protected
                    getSchemaMetadata(string $schema, string $type, bool $refresh) : array<string|int, mixed>

This method will call a 'getTable' . ucfirst($type) named method with the table name and the refresh flag to obtain the metadata.

Parameters

$schema : string: the schema of the metadata. Defaults to empty string, meaning the current or default schema name.
$type : string: metadata type.
$refresh : bool: whether to fetch the latest available table metadata. If this is false, cached data may be returned if available.

Return values

array<string|int, mixed> —

array of metadata.

getTableMetadata()

Returns the metadata of the given type for the given table.


    protected
                    getTableMetadata(string $name, string $type, bool $refresh) : mixed

If there's no metadata in the cache, this method will call a 'loadTable' . ucfirst($type) named method with the table name to obtain the metadata.

Parameters

$name : string: table name. The table name may contain schema name if any. Do not quote the table name.
$type : string: metadata type.
$refresh : bool: whether to reload the table metadata even if it is found in the cache.

Return values

mixed —

metadata.

getTableNameParts()

Splits full table name into parts


    protected
                    getTableNameParts(string $name) : array<string|int, mixed>

Parameters

$name : string

Return values

array<string|int, mixed>

loadTableSchema()

Loads the metadata for the specified table.


    protected
    abstract                loadTableSchema(string $name) : TableSchema|null

Parameters

$name : string: table name

Return values

TableSchema|null —

DBMS-dependent table metadata, null if the table does not exist.

normalizePdoRowKeyCase()

Changes row's array key case to lower if PDO's one is set to uppercase.


    protected
                    normalizePdoRowKeyCase(array<string|int, mixed> $row, bool $multiple) : array<string|int, mixed>

Parameters

$row : array<string|int, mixed>: row's array or an array of row's arrays.
$multiple : bool: whether multiple rows or a single row passed.

Return values

array<string|int, mixed> —

normalized row or rows.

resolveTableName()

Resolves the table name and schema name (if any).


    protected
                    resolveTableName(string $name) : TableSchema

Parameters

$name : string: the table name

Return values

TableSchema —

[[TableSchema]] with resolved table, schema, etc. names.

setTableMetadata()

Sets the metadata of the given type for the given table.


    protected
                    setTableMetadata(string $name, string $type, mixed $data) : mixed

Parameters

$name : string: table name.
$type : string: metadata type.
$data : mixed: metadata.

loadTableMetadataFromCache()

Tries to load and populate table metadata from cache.


    private
                    loadTableMetadataFromCache(Cache|null $cache, string $name) : mixed

Parameters

$cache : Cache|null
$name : string

saveTableMetadataToCache()

Saves table metadata to cache.


    private
                    saveTableMetadataToCache(Cache|null $cache, string $name) : mixed

Parameters

$cache : Cache|null
$name : string

Schema extends BaseObject in package Application

Tags

Table of Contents

Constants

Properties

Methods

Constants

SCHEMA_CACHE_VERSION

TYPE_BIGINT

TYPE_BIGPK

TYPE_BINARY

TYPE_BOOLEAN

TYPE_CHAR

TYPE_DATE

TYPE_DATETIME

TYPE_DECIMAL

TYPE_DOUBLE

TYPE_FLOAT

TYPE_INTEGER

TYPE_JSON

TYPE_MONEY

TYPE_PK

TYPE_SMALLINT

TYPE_STRING

TYPE_TEXT

TYPE_TIME

TYPE_TIMESTAMP

TYPE_TINYINT

TYPE_UBIGPK

TYPE_UPK

Properties

$columnSchemaClass

Tags

$db

$defaultSchema

$exceptionMap

$lastInsertID read-only

$queryBuilder read-only

$schemaNames read-only

$serverVersion read-only

$tableNames read-only

$tableSchemas read-only

$transactionIsolationLevel write-only

$columnQuoteCharacter

Tags

$tableQuoteCharacter

Tags

$_builder

$_schemaNames

$_serverVersion

$_tableMetadata

$_tableNames

Methods

__call()

Parameters

Tags

Return values

__construct()

Parameters

__get()

Parameters

Tags

Return values

__isset()

Parameters

Tags

Return values

__set()

Parameters

Tags

__unset()

Parameters

Tags

Schema extends BaseObject
in package

Application