CMysqlSchema
| 包 | system.db.schema.mysql |
|---|---|
| 继承 | class CMysqlSchema » CDbSchema » CComponent |
| 可用自 | 1.0 |
| 版本 | $Id$ |
CMysqlSchema is the class for retrieving metadata information from a MySQL database (version 4.1.x and 5.x).
公共属性
| 属性 | 类型 | 描述 | 被定义在 |
|---|---|---|---|
| commandBuilder | CDbCommandBuilder | the SQL command builder for this connection. | CDbSchema |
| dbConnection | CDbConnection | database connection. | CDbSchema |
| tableNames | array | Returns all table names in the database. | CDbSchema |
| tables | array | Returns the metadata for all tables in the database. | CDbSchema |
公共方法
| 方法 | 描述 | 被定义在 |
|---|---|---|
| __call() | Calls the named method which is not a class method. | CComponent |
| __construct() | Constructor. | CDbSchema |
| __get() | Returns a property value, an event handler list or a behavior based on its name. | CComponent |
| __isset() | Checks if a property value is null. | CComponent |
| __set() | Sets value of a component property. | CComponent |
| __unset() | Sets a component property to be null. | CComponent |
| asa() | Returns the named behavior object. | CComponent |
| attachBehavior() | Attaches a behavior to this component. | CComponent |
| attachBehaviors() | Attaches a list of behaviors to the component. | CComponent |
| attachEventHandler() | Attaches an event handler to an event. | CComponent |
| canGetProperty() | Determines whether a property can be read. | CComponent |
| canSetProperty() | Determines whether a property can be set. | CComponent |
| compareTableNames() | Compares two table names. | CMysqlSchema |
| detachBehavior() | Detaches a behavior from the component. | CComponent |
| detachBehaviors() | Detaches all behaviors from the component. | CComponent |
| detachEventHandler() | Detaches an existing event handler. | CComponent |
| disableBehavior() | Disables an attached behavior. | CComponent |
| disableBehaviors() | Disables all behaviors attached to this component. | CComponent |
| enableBehavior() | Enables an attached behavior. | CComponent |
| enableBehaviors() | Enables all behaviors attached to this component. | CComponent |
| getCommandBuilder() | CDbSchema | |
| getDbConnection() | CDbSchema | |
| getEventHandlers() | Returns the list of attached event handlers for an event. | CComponent |
| getTable() | Obtains the metadata for the named table. | CDbSchema |
| getTableNames() | Returns all table names in the database. | CDbSchema |
| getTables() | Returns the metadata for all tables in the database. | CDbSchema |
| hasEvent() | Determines whether an event is defined. | CComponent |
| hasEventHandler() | Checks whether the named event has attached handlers. | CComponent |
| hasProperty() | Determines whether a property is defined. | CComponent |
| quoteColumnName() | Quotes a column name for use in a query. | CMysqlSchema |
| quoteTableName() | Quotes a table name for use in a query. | CMysqlSchema |
| raiseEvent() | Raises an event. | CComponent |
| refresh() | Refreshes the schema. | CDbSchema |
受保护的方法
| 方法 | 描述 | 被定义在 |
|---|---|---|
| createColumn() | Creates a table column. | CMysqlSchema |
| createCommandBuilder() | Creates a command builder for the database. | CDbSchema |
| createTable() | Creates a table instance representing the metadata for the named table. | CMysqlSchema |
| findColumns() | Collects the table column metadata. | CMysqlSchema |
| findConstraints() | Collects the foreign key column details for the given table. | CMysqlSchema |
| findTableNames() | Returns all table names in the database. | CMysqlSchema |
| getServerVersion() | CMysqlSchema | |
| resolveTableNames() | Generates various kinds of table names. | CMysqlSchema |
属性详情
serverVersion
属性
只读
protected float getServerVersion()
server version.
方法详情
compareTableNames()
方法
|
public boolean compareTableNames(string $name1, string $name2)
| ||
| $name1 | string | table name 1 |
| $name2 | string | table name 2 |
| {return} | boolean | whether the two table names refer to the same table. |
Compares two table names. The table names can be either quoted or unquoted. This method will consider both cases.
createColumn()
方法
|
protected CDbColumnSchema createColumn(array $column)
| ||
| $column | array | column metadata |
| {return} | CDbColumnSchema | normalized column metadata |
Creates a table column.
createTable()
方法
|
protected CMysqlTableSchema createTable($name)
| ||
| $name | ||
| {return} | CMysqlTableSchema | driver dependent table metadata. Null if the table does not exist. |
Creates a table instance representing the metadata for the named table.
findColumns()
方法
|
protected boolean findColumns(CMysqlTableSchema $table)
| ||
| $table | CMysqlTableSchema | the table metadata |
| {return} | boolean | whether the table exists in the database |
Collects the table column metadata.
findConstraints()
方法
|
protected void findConstraints(CMysqlTableSchema $table)
| ||
| $table | CMysqlTableSchema | the table metadata |
Collects the foreign key column details for the given table.
findTableNames()
方法
（自版本 v1.0.2 可用）
|
protected array findTableNames($schema='')
| ||
| $schema | ||
| {return} | array | all table names in the database. |
Returns all table names in the database.
getServerVersion()
方法
|
protected float getServerVersion()
| ||
| {return} | float | server version. |
quoteColumnName()
方法
|
public string quoteColumnName(string $name)
| ||
| $name | string | column name |
| {return} | string | the properly quoted column name |
Quotes a column name for use in a query.
quoteTableName()
方法
|
public string quoteTableName(string $name)
| ||
| $name | string | table name |
| {return} | string | the properly quoted table name |
Quotes a table name for use in a query.
resolveTableNames()
方法
|
protected void resolveTableNames(CMysqlTableSchema $table, string $name)
| ||
| $table | CMysqlTableSchema | the table instance |
| $name | string | the unquoted table name |
Generates various kinds of table names.