ActiveQuery ​
- Type
- Class
- Namespace
- craft\db
- Inherits
- craft\db\ActiveQuery » yii\db\ActiveQuery » yii\db\Query » yii\base\Component » yii\base\BaseObject
- Implements
- yii\base\Configurable, yii\db\ActiveQueryInterface, yii\db\ExpressionInterface, yii\db\QueryInterface
- Uses traits
- yii\db\ActiveQueryTrait, yii\db\ActiveRelationTrait, yii\db\QueryTrait
- Extended by
- craft\db\StructuredElementQuery
- Since
- 3.5.13
Active Query class.
Public Properties ​
| Property | Description |
|---|---|
| alias | string – The table alias for modelClass. |
| asArray | boolean – Whether to return each record as an array. |
| behaviors | yii\base\Behavior – List of behaviors attached to this component. |
| distinct | boolean – Whether to select distinct rows of data only. |
| emulateExecution | boolean – Whether to emulate the actual query execution, returning empty or false results. |
| from | array, null – The table(s) to be selected from. |
| groupBy | array, null – How to group the query results. |
| having | string, array, yii\db\ExpressionInterface, null – The condition to be applied in the GROUP BY clause. |
| indexBy | string, callable, null – The name of the column by which the query results should be indexed by. |
| inverseOf | string – The name of the relation that is the inverse of this relation. |
| join | array, null – How to join with other tables. |
| joinWith | array, null – A list of relations that this query should be joined with |
| limit | integer, yii\db\ExpressionInterface, null – Maximum number of records to be returned. |
| link | array – The columns of the primary and foreign tables that establish a relation. |
| modelClass | string – The name of the ActiveRecord class. |
| multiple | boolean – Whether this query represents a relation to more than one record. |
| offset | integer, yii\db\ExpressionInterface, null – Zero-based offset from where the records are to be returned. |
| on | string, array, null – The join condition to be used when this query is used in a relational context. |
| orderBy | array, null – How to sort the query results. |
| params | array, null – List of query parameter values indexed by parameter placeholders. |
| primaryModel | yii\db\ActiveRecord – The primary model of a relational query. |
| queryCacheDependency | yii\caching\Dependency, null – The dependency to be associated with the cached query result for this query |
| queryCacheDuration | integer, boolean, null – The default number of seconds that query results can remain valid in cache. |
| select | array, null – The columns being selected. |
| selectOption | string, null – Additional option that should be appended to the 'SELECT' keyword. |
| sql | string, null – The SQL statement to be executed for retrieving AR records. |
| tablesUsedInFrom | string[] – Table names indexed by aliases. |
| union | array, null – This is used to construct the UNION clause(s) in a SQL statement. |
| via | array, object – The query associated with the junction table. |
| where | string, array, yii\db\ExpressionInterface, null – Query condition. |
| with | array – A list of relations that this query should be performed with |
| withQueries | array, null – This is used to construct the WITH section in a SQL query. |
alias ​
- Type
- string
- Default value
null
The table alias for modelClass.
Public Methods ​
| Method | Description |
|---|---|
| __call() | Calls the named method which is not a class method. |
| __clone() | This method is called after the object is created by cloning an existing one. |
| __construct() | Constructor. |
| __get() | Returns the value of a component property. |
| __isset() | Checks if a property is set, i.e. defined and not null. |
| __set() | Sets the value of a component property. |
| __toString() | Returns the SQL representation of Query |
| __unset() | Sets a component property to be null. |
| addGroupBy() | Adds additional group-by columns to the existing ones. |
| addOrderBy() | Adds additional ORDER BY columns to the query. |
| addParams() | Adds additional parameters to be bound to the query. |
| addSelect() | Add more columns to the SELECT part of the query. |
| alias() | Define an alias for the table defined in modelClass. |
| all() | Executes query and returns all results as an array. |
| andFilterCompare() | Adds a filtering condition for a specific column and allow the user to choose a filter operator. |
| andFilterHaving() | Adds an additional HAVING condition to the existing one but ignores empty operands. |
| andFilterWhere() | Adds an additional WHERE condition to the existing one but ignores empty operands. |
| andHaving() | Adds an additional HAVING condition to the existing one. |
| andOnCondition() | Adds an additional ON condition to the existing one. |
| andWhere() | Adds an additional WHERE condition to the existing one. |
| asArray() | Sets the asArray() property. |
| attachBehavior() | Attaches a behavior to this component. |
| attachBehaviors() | Attaches a list of behaviors to the component. |
| average() | Returns the average of the specified column values. |
| batch() | Starts a batch query. |
| behaviors() | Returns a list of behaviors that this component should behave as. |
| cache() | Enables query cache for this Query. |
| canGetProperty() | Returns a value indicating whether a property can be read. |
| canSetProperty() | Returns a value indicating whether a property can be set. |
| className() | Returns the fully qualified name of this class. |
| column() | Executes the query and returns the first column of the result. |
| count() | Returns the number of records. |
| create() | Creates a new Query object and copies its property values from an existing one. |
| createCommand() | Creates a DB command that can be used to execute this query. |
| detachBehavior() | Detaches a behavior from the component. |
| detachBehaviors() | Detaches all behaviors from the component. |
| distinct() | Sets the value indicating whether to SELECT DISTINCT or not. |
| each() | Starts a batch query and retrieves data row by row. |
| emulateExecution() | Sets whether to emulate query execution, preventing any interaction with data storage. |
| ensureBehaviors() | Makes sure that the behaviors declared in behaviors() are attached to this component. |
| exists() | Returns a value indicating whether the query result contains any row of data. |
| filterHaving() | Sets the HAVING part of the query but ignores empty operands. |
| filterWhere() | Sets the WHERE part of the query but ignores empty operands. |
| findFor() | Finds the related records for the specified primary record. |
| findWith() | Finds records corresponding to one or multiple relations and populates them into the primary models. |
| from() | Sets the FROM part of the query. |
| getAlias() | Returns the table alias for modelClass. |
| getBehavior() | Returns the named behavior object. |
| getBehaviors() | Returns all behaviors attached to this component. |
| getTablesUsedInFrom() | Returns table names used in from() indexed by aliases. |
| groupBy() | Sets the GROUP BY part of the query. |
| hasEventHandlers() | Returns a value indicating whether there is any handler attached to the named event. |
| hasMethod() | Returns a value indicating whether a method is defined. |
| hasProperty() | Returns a value indicating whether a property is defined for this component. |
| having() | Sets the HAVING part of the query. |
| indexBy() | Sets the indexBy() property. |
| init() | Initializes the object. |
| innerJoin() | Appends an INNER JOIN part to the query. |
| innerJoinWith() | Inner joins with the specified relations. |
| inverseOf() | Sets the name of the relation that is the inverse of this relation. |
| join() | Appends a JOIN part to the query. |
| joinWith() | Joins with the specified relations. |
| leftJoin() | Appends a LEFT OUTER JOIN part to the query. |
| limit() | Determines the number of {elements} that should be returned. |
| max() | Returns the maximum of the specified column values. |
| min() | Returns the minimum of the specified column values. |
| noCache() | Disables query cache for this Query. |
| off() | Detaches an existing event handler from this component. |
| offset() | Determines how many {elements} should be skipped in the results. |
| on() | Attaches an event handler to an event. |
| onCondition() | Sets the ON condition for a relational query. |
| one() | Executes query and returns a single row of result. |
| orFilterHaving() | Adds an additional HAVING condition to the existing one but ignores empty operands. |
| orFilterWhere() | Adds an additional WHERE condition to the existing one but ignores empty operands. |
| orHaving() | Adds an additional HAVING condition to the existing one. |
| orOnCondition() | Adds an additional ON condition to the existing one. |
| orWhere() | Adds an additional WHERE condition to the existing one. |
| orderBy() | Sets the ORDER BY part of the query. |
| params() | Sets the parameters to be bound to the query. |
| populate() | Converts the raw query results into the format as specified by this query. |
| populateRelation() | Finds the related records and populates them into the primary models. |
| prepare() | Prepares for building SQL. |
| rightJoin() | Appends a RIGHT OUTER JOIN part to the query. |
| scalar() | Returns the query result as a scalar value. |
| select() | Sets the SELECT part of the query. |
| sum() | Returns the sum of the specified column values. |
| trigger() | Triggers an event. |
| union() | Appends a SQL statement using UNION operator. |
| via() | Specifies the relation associated with the junction table. |
| viaTable() | Specifies the junction table for a relational query. |
| where() | Sets the WHERE part of the query. |
| with() | Specifies the relations with which this query should be performed. |
| withQuery() | Prepends a SQL statement using WITH syntax. |
getAlias() ​
Returns the table alias for modelClass.
Returns ​
Protected Methods ​
| Method | Description |
|---|---|
| cleanUpTableNames() | Clean up table names and aliases Both aliases and names are enclosed into . |
| createModels() | Converts found rows into model instances. |
| filterCondition() | Removes empty operands from the given query condition. |
| getPrimaryTableName() | |
| getTableNameAndAlias() | Returns the table name and the table alias for modelClass. |
| getUnaliasedColumnsFromSelect() | |
| getUniqueColumns() | Returns unique column names excluding duplicates. |
| isEmpty() | Returns a value indicating whether the give value is "empty". |
| normalizeOrderBy() | Normalizes format of ORDER BY data. |
| normalizeSelect() | Normalizes the SELECT columns passed to select() or addSelect(). |
| queryScalar() | Queries a scalar value by setting select() first. |
| setCommandCache() | Sets $command cache, if this query has enabled caching. |