Ext.data.association.HasMany
Alternate names
Ext.data.HasManyAssociationHierarchy
Ext.BaseExt.data.association.AssociationExt.data.association.HasManyRequires
Files
Guide
Using ModelsRepresents a one-to-many relationship between two models. Usually created indirectly via a model definition:
Ext.define('Product', {
extend: 'Ext.data.Model',
config: {
fields: [
{name: 'id', type: 'int'},
{name: 'user_id', type: 'int'},
{name: 'name', type: 'string'}
]
}
});
Ext.define('User', {
extend: 'Ext.data.Model',
config: {
fields: [
{name: 'id', type: 'int'},
{name: 'name', type: 'string'}
],
// we can use the hasMany shortcut on the model to create a hasMany association
hasMany: {model: 'Product', name: 'products'}
}
});
`
Above we created Product and User models, and linked them by saying that a User hasMany Products. This gives us a new function on every User instance, in this case the function is called 'products' because that is the name we specified in the association configuration above.
This new function returns a specialized Store which is automatically filtered to load only Products for the given model instance:
//first, we load up a User with id of 1
var user = Ext.create('User', {id: 1, name: 'Ed'});
//the user.products function was created automatically by the association and returns a Store
//the created store is automatically scoped to the set of Products for the User with id of 1
var products = user.products();
//we still have all of the usual Store functions, for example it's easy to add a Product for this User
products.add({
name: 'Another Product'
});
//saves the changes to the store - this automatically sets the new Product's user_id to 1 before saving
products.sync();
The new Store is only instantiated the first time you call products() to conserve memory and processing time, though calling products() a second time returns the same store instance.
Custom filtering
The Store is automatically furnished with a filter - by default this filter tells the store to only return records where the associated model's foreign key matches the owner model's primary key. For example, if a User with ID = 100 hasMany Products, the filter loads only Products with user_id == 100.
Sometimes we want to filter by another field - for example in the case of a Twitter search application we may have models for Search and Tweet:
Ext.define('Search', {
extend: 'Ext.data.Model',
config: {
fields: [
'id', 'query'
],
hasMany: {
model: 'Tweet',
name : 'tweets',
filterProperty: 'query'
}
}
});
Ext.define('Tweet', {
extend: 'Ext.data.Model',
config: {
fields: [
'id', 'text', 'from_user'
]
}
});
//returns a Store filtered by the filterProperty
var store = new Search({query: 'Sencha Touch'}).tweets();
The tweets association above is filtered by the query property by setting the filterProperty, and is equivalent to this:
var store = Ext.create('Ext.data.Store', {
model: 'Tweet',
filters: [
{
property: 'query',
value : 'Sencha Touch'
}
]
});
Available since: 1.1.0
Config options
Required Config options associatedModel : StringrequiredThe full class name or reference to the class that the ownerModel
is being associated with. ...The full class name or reference to the class that the ownerModel
is being associated with. This is a required configuration on every association.
Available since: 1.1.0
ownerModel : Ext.data.Model/StringrequiredThe full class name or reference to the class that owns this
associations. ...The full class name or reference to the class that owns this
associations. This is a required configuration on every association.
Available since: 1.1.0
The full class name or reference to the class that the ownerModel is being associated with. This is a required configuration on every association.
Available since: 1.1.0
The full class name or reference to the class that owns this associations. This is a required configuration on every association.
Available since: 1.1.0
Optional Config options The name for the associated model. ...The name for the associated model. This defaults to the last part
of the class name of the associatedModel.
Available since: 2.0.0
The name of the property in the data to read the association from. ...The name of the property in the data to read the association from.
Defaults to the associatedName plus '_id'.
Available since: 2.0.0
true to automatically load the related store from a remote source when instantiated. ...true to automatically load the related store from a remote source when instantiated.
Defaults to: false
Available since: 2.0.0
true to automatically synchronize the related store with the remote source ...true to automatically synchronize the related store with the remote source
Defaults to: false
Available since: 2.1.0
Optionally overrides the default filter that is set up on the associated Store. ...Optionally overrides the default filter that is set up on the associated Store. If this is not set, a filter
is automatically created which filters the association based on the configured foreignKey. See intro
docs for more details.
Available since: 1.1.0
The name of the foreign key on the associated model that links it to the owner model. ...The name of the foreign key on the associated model that links it to the owner model. Defaults to the
lowercased name of the owner model plus "_id", e.g. an association with a model called Group hasMany Users
would create 'group_id' as the foreign key. When the remote store is loaded, the store is automatically
filtered so that only records with a matching foreign key are included in the resulting child store. This can
be overridden by specifying the filterProperty.
Ext.define('Group', {
extend: 'Ext.data.Model',
fields: ['id', 'name'],
hasMany: 'User'
});
Ext.define('User', {
extend: 'Ext.data.Model',
fields: ['id', 'name', 'group_id'], // refers to the id of the group that this user belongs to
belongsTo: 'Group'
});
Available since: 1.1.0
The name of the function to create on the owner model to retrieve the child store. ...The name of the function to create on the owner model to retrieve the child store. If not specified, the
pluralized name of the child model is used.
// This will create a users() method on any Group model instance
Ext.define('Group', {
extend: 'Ext.data.Model',
fields: ['id', 'name'],
hasMany: 'User'
});
var group = new Group();
console.log(group.users());
// The method to retrieve the users will now be getUserList
Ext.define('Group', {
extend: 'Ext.data.Model',
fields: ['id', 'name'],
hasMany: {model: 'User', name: 'getUserList'}
});
var group = new Group();
console.log(group.getUserList());
Available since: 1.1.0
Overrides: Ext.data.association.Association.name
The name for the owner model. ...The name for the owner model. This defaults to the last part
of the class name of the ownerModel.
Available since: 2.0.0
The name of the primary key on the associated model. ...The name of the primary key on the associated model.
In general this will be the Ext.data.Model.idProperty of the Model.
Defaults to: 'id'
Available since: 1.1.0
A special reader to read associated data.
A special reader to read associated data.
Available since: 2.0.0
Optional configuration object that will be passed to the generated Store. ...Optional configuration object that will be passed to the generated Store. Defaults to an empty Object.
Available since: 2.0.0
storeConfig : Objectdeprecated ...
This cfg has been deprecated since 2.0.0
Use store instead.
Available since: 1.1.0
Optional The name of the store by which you can reference it on this class as a property.
Optional The name of the store by which you can reference it on this class as a property.
Available since: 2.0.0
The type configuration can be used when creating associations using a configuration object. ...The type configuration can be used when creating associations using a configuration object.
Use hasMany to create a HasMany association.
associations: [{
type: 'hasMany',
model: 'User'
}]
Available since: 2.0.0
The name for the associated model. This defaults to the last part of the class name of the associatedModel.
Available since: 2.0.0
The name of the property in the data to read the association from. Defaults to the associatedName plus '_id'.
Available since: 2.0.0
true to automatically load the related store from a remote source when instantiated.
Defaults to: false
Available since: 2.0.0
true to automatically synchronize the related store with the remote source
Defaults to: false
Available since: 2.1.0
Optionally overrides the default filter that is set up on the associated Store. If this is not set, a filter is automatically created which filters the association based on the configured foreignKey. See intro docs for more details.
Available since: 1.1.0
The name of the foreign key on the associated model that links it to the owner model. Defaults to the lowercased name of the owner model plus "_id", e.g. an association with a model called Group hasMany Users would create 'group_id' as the foreign key. When the remote store is loaded, the store is automatically filtered so that only records with a matching foreign key are included in the resulting child store. This can be overridden by specifying the filterProperty.
Ext.define('Group', {
extend: 'Ext.data.Model',
fields: ['id', 'name'],
hasMany: 'User'
});
Ext.define('User', {
extend: 'Ext.data.Model',
fields: ['id', 'name', 'group_id'], // refers to the id of the group that this user belongs to
belongsTo: 'Group'
});
Available since: 1.1.0
The name of the function to create on the owner model to retrieve the child store. If not specified, the pluralized name of the child model is used.
// This will create a users() method on any Group model instance
Ext.define('Group', {
extend: 'Ext.data.Model',
fields: ['id', 'name'],
hasMany: 'User'
});
var group = new Group();
console.log(group.users());
// The method to retrieve the users will now be getUserList
Ext.define('Group', {
extend: 'Ext.data.Model',
fields: ['id', 'name'],
hasMany: {model: 'User', name: 'getUserList'}
});
var group = new Group();
console.log(group.getUserList());
Available since: 1.1.0
Overrides: Ext.data.association.Association.name
The name for the owner model. This defaults to the last part of the class name of the ownerModel.
Available since: 2.0.0
The name of the primary key on the associated model. In general this will be the Ext.data.Model.idProperty of the Model.
Defaults to: 'id'
Available since: 1.1.0
A special reader to read associated data.
A special reader to read associated data.
Available since: 2.0.0
Optional configuration object that will be passed to the generated Store. Defaults to an empty Object.
Available since: 2.0.0
This cfg has been deprecated since 2.0.0
Use store instead.
Available since: 1.1.0
Optional The name of the store by which you can reference it on this class as a property.
Optional The name of the store by which you can reference it on this class as a property.
Available since: 2.0.0
The type configuration can be used when creating associations using a configuration object.
Use hasMany to create a HasMany association.
associations: [{
type: 'hasMany',
model: 'User'
}]
Available since: 2.0.0
Properties
Instance Properties Get the reference to the current class from which this object was instantiated. ...Get the reference to the current class from which this object was instantiated. Unlike statics,
this.self is scope-dependent and it's meant to be used for dynamic inheritance. See statics
for a detailed comparison
Ext.define('My.Cat', {
statics: {
speciesName: 'Cat' // My.Cat.speciesName = 'Cat'
},
constructor: function() {
alert(this.self.speciesName); // dependent on 'this'
},
clone: function() {
return new this.self();
}
});
Ext.define('My.SnowLeopard', {
extend: 'My.Cat',
statics: {
speciesName: 'Snow Leopard' // My.SnowLeopard.speciesName = 'Snow Leopard'
}
});
var cat = new My.Cat(); // alerts 'Cat'
var snowLeopard = new My.SnowLeopard(); // alerts 'Snow Leopard'
var clone = snowLeopard.clone();
alert(Ext.getClassName(clone)); // alerts 'My.SnowLeopard'
Available since: 2.0.0
Get the reference to the current class from which this object was instantiated. Unlike statics,
this.self is scope-dependent and it's meant to be used for dynamic inheritance. See statics
for a detailed comparison
Ext.define('My.Cat', {
statics: {
speciesName: 'Cat' // My.Cat.speciesName = 'Cat'
},
constructor: function() {
alert(this.self.speciesName); // dependent on 'this'
},
clone: function() {
return new this.self();
}
});
Ext.define('My.SnowLeopard', {
extend: 'My.Cat',
statics: {
speciesName: 'Snow Leopard' // My.SnowLeopard.speciesName = 'Snow Leopard'
}
});
var cat = new My.Cat(); // alerts 'Cat'
var snowLeopard = new My.SnowLeopard(); // alerts 'Snow Leopard'
var clone = snowLeopard.clone();
alert(Ext.getClassName(clone)); // alerts 'My.SnowLeopard'
Available since: 2.0.0
Static Properties
Methods
Instance Methods Creates the Association object. ...Creates the Association object.
Available since: 1.1.0
Parameters
- config : Object (optional)
Config object.
Returns
Overrides: Ext.data.association.Association.constructor
applyName( name )private ...
Available since: 2.0.0
Parameters
- name : Object
Overrides: Ext.data.association.Association.applyName
Creates a function that returns an Ext.data.Store which is configured to load a set of data filtered
by the owner mod...Creates a function that returns an Ext.data.Store which is configured to load a set of data filtered
by the owner model's primary key - e.g. in a hasMany association where Group hasMany Users, this function
returns a Store configured to return the filtered set of a single Group's Users.
Available since: 2.0.0
Parameters
- storeConfig : Object
Returns
- Function
The store-generating function.
Call the original method that was previously overridden with override,
This method is deprecated as callParent does ...Call the original method that was previously overridden with override,
This method is deprecated as callParent does the same thing.
Ext.define('My.Cat', {
constructor: function() {
alert("I'm a cat!");
}
});
My.Cat.override({
constructor: function() {
alert("I'm going to be a cat!");
var instance = this.callOverridden();
alert("Meeeeoooowwww");
return instance;
}
});
var kitty = new My.Cat(); // alerts "I'm going to be a cat!"
// alerts "I'm a cat!"
// alerts "Meeeeoooowwww"
This method has been deprecated
Use callParent instead
Available since: 2.0.0
Parameters
- args : Array/Arguments
The arguments, either an array or the arguments object
from the current method, for example: this.callOverridden(arguments)
Returns
- Object
Returns the result of calling the overridden method
Call the "parent" method of the current method. ...Call the "parent" method of the current method. That is the method previously
overridden by derivation or by an override (see Ext.define).
Ext.define('My.Base', {
constructor: function (x) {
this.x = x;
},
statics: {
method: function (x) {
return x;
}
}
});
Ext.define('My.Derived', {
extend: 'My.Base',
constructor: function () {
this.callParent([21]);
}
});
var obj = new My.Derived();
alert(obj.x); // alerts 21
This can be used with an override as follows:
Ext.define('My.DerivedOverride', {
override: 'My.Derived',
constructor: function (x) {
this.callParent([x*2]); // calls original My.Derived constructor
}
});
var obj = new My.Derived();
alert(obj.x); // now alerts 42
This also works with static methods.
Ext.define('My.Derived2', {
extend: 'My.Base',
statics: {
method: function (x) {
return this.callParent([x*2]); // calls My.Base.method
}
}
});
alert(My.Base.method(10)); // alerts 10
alert(My.Derived2.method(10)); // alerts 20
Lastly, it also works with overridden static methods.
Ext.define('My.Derived2Override', {
override: 'My.Derived2',
statics: {
method: function (x) {
return this.callParent([x*2]); // calls My.Derived2.method
}
}
});
alert(My.Derived2.method(10)); // now alerts 40
To override a method and replace it and also call the superclass method, use
callSuper. This is often done to patch a method to fix a bug.
Available since: 2.0.0
Parameters
- args : Array/Arguments
The arguments, either an array or the arguments object
from the current method, for example: this.callParent(arguments)
Returns
- Object
Returns the result of calling the parent method
This method is used by an override to call the superclass method but bypass any
overridden method. ...This method is used by an override to call the superclass method but bypass any
overridden method. This is often done to "patch" a method that contains a bug
but for whatever reason cannot be fixed directly.
Consider:
Ext.define('Ext.some.Class', {
method: function () {
console.log('Good');
}
});
Ext.define('Ext.some.DerivedClass', {
method: function () {
console.log('Bad');
// ... logic but with a bug ...
this.callParent();
}
});
To patch the bug in DerivedClass.method, the typical solution is to create an
override:
Ext.define('App.paches.DerivedClass', {
override: 'Ext.some.DerivedClass',
method: function () {
console.log('Fixed');
// ... logic but with bug fixed ...
this.callSuper();
}
});
The patch method cannot use callParent to call the superclass method since
that would call the overridden method containing the bug. In other words, the
above patch would only produce "Fixed" then "Good" in the console log, whereas,
using callParent would produce "Fixed" then "Bad" then "Good".
Available since: 2.1.0
Parameters
- args : Array/Arguments
The arguments, either an array or the arguments object
from the current method, for example: this.callSuper(arguments)
Returns
- Object
Returns the result of calling the superclass method
destroy( )protected ...
Available since: 2.0.0
Overrides: Ext.mixin.Observable.destroy, Ext.Container.destroy, Ext.draw.sprite.Sprite.destroy, Ext.dataview.DataView.destroy
getAutoLoad( ) : Boolean getAutoSync( ) : Boolean getOwnerName( ) : String getStoreName( ) : String Initialize configuration for this class. ...Initialize configuration for this class. a typical example:
Ext.define('My.awesome.Class', {
// The default config
config: {
name: 'Awesome',
isAwesome: true
},
constructor: function(config) {
this.initConfig(config);
}
});
var awesome = new My.awesome.Class({
name: 'Super Awesome'
});
alert(awesome.getName()); // 'Super Awesome'
Available since: 2.0.0
Parameters
- instanceConfig : Object
Returns
- Object
mixins The mixin prototypes as key - value pairs
link( name, value ) : Mixedprivate onAddRecords( store, records )private onClassExtended( cls, data, hooks )private onConfigUpdate( names, callback, scope )private onRemoveRecords( store, records )private read( record, reader, associationData )privateRead associated data ...Read associated data
Available since: 2.0.0
Parameters
- record : Ext.data.Model
The record we're writing to.
- reader : Ext.data.reader.Reader
The reader for the associated model.
- associationData : Object
The raw associated data.
setAutoLoad( autoLoad ) setAutoSync( autoSync ) setName( name ) setOwnerName( ownerName ) setStore( store ) setStoreName( storeName ) setType( type ) Get the reference to the class from which this object was instantiated. ...Get the reference to the class from which this object was instantiated. Note that unlike self,
this.statics() is scope-independent and it always returns the class from which it was called, regardless of what
this points to during run-time
Ext.define('My.Cat', {
statics: {
totalCreated: 0,
speciesName: 'Cat' // My.Cat.speciesName = 'Cat'
},
constructor: function() {
var statics = this.statics();
alert(statics.speciesName); // always equals to 'Cat' no matter what 'this' refers to
// equivalent to: My.Cat.speciesName
alert(this.self.speciesName); // dependent on 'this'
statics.totalCreated++;
},
clone: function() {
var cloned = new this.self(); // dependent on 'this'
cloned.groupName = this.statics().speciesName; // equivalent to: My.Cat.speciesName
return cloned;
}
});
Ext.define('My.SnowLeopard', {
extend: 'My.Cat',
statics: {
speciesName: 'Snow Leopard' // My.SnowLeopard.speciesName = 'Snow Leopard'
},
constructor: function() {
this.callParent();
}
});
var cat = new My.Cat(); // alerts 'Cat', then alerts 'Cat'
var snowLeopard = new My.SnowLeopard(); // alerts 'Cat', then alerts 'Snow Leopard'
var clone = snowLeopard.clone();
alert(Ext.getClassName(clone)); // alerts 'My.SnowLeopard'
alert(clone.groupName); // alerts 'Cat'
alert(My.Cat.totalCreated); // alerts 3
Available since: 2.0.0
Returns
updateAssociatedModel( associatedModel, oldAssociatedModel )private updateForeignKey( foreignKey, oldForeignKey )private updateOwnerModel( ownerModel, oldOwnerModel )private
Creates the Association object.
Available since: 1.1.0
Parameters
- config : Object (optional)
Config object.
Returns
Overrides: Ext.data.association.Association.constructor
Available since: 2.0.0
Parameters
- name : Object
Overrides: Ext.data.association.Association.applyName
Creates a function that returns an Ext.data.Store which is configured to load a set of data filtered
by the owner model's primary key - e.g. in a hasMany association where Group hasMany Users, this function
returns a Store configured to return the filtered set of a single Group's Users.
Available since: 2.0.0
Parameters
- storeConfig : Object
Returns
- Function
The store-generating function.
Call the original method that was previously overridden with override,
This method is deprecated as callParent does the same thing.
Ext.define('My.Cat', {
constructor: function() {
alert("I'm a cat!");
}
});
My.Cat.override({
constructor: function() {
alert("I'm going to be a cat!");
var instance = this.callOverridden();
alert("Meeeeoooowwww");
return instance;
}
});
var kitty = new My.Cat(); // alerts "I'm going to be a cat!"
// alerts "I'm a cat!"
// alerts "Meeeeoooowwww"
This method has been deprecated
Use callParent instead
Available since: 2.0.0
Parameters
- args : Array/Arguments
The arguments, either an array or the
argumentsobject from the current method, for example:this.callOverridden(arguments)
Returns
- Object
Returns the result of calling the overridden method
Call the "parent" method of the current method. That is the method previously overridden by derivation or by an override (see Ext.define).
Ext.define('My.Base', {
constructor: function (x) {
this.x = x;
},
statics: {
method: function (x) {
return x;
}
}
});
Ext.define('My.Derived', {
extend: 'My.Base',
constructor: function () {
this.callParent([21]);
}
});
var obj = new My.Derived();
alert(obj.x); // alerts 21
This can be used with an override as follows:
Ext.define('My.DerivedOverride', {
override: 'My.Derived',
constructor: function (x) {
this.callParent([x*2]); // calls original My.Derived constructor
}
});
var obj = new My.Derived();
alert(obj.x); // now alerts 42
This also works with static methods.
Ext.define('My.Derived2', {
extend: 'My.Base',
statics: {
method: function (x) {
return this.callParent([x*2]); // calls My.Base.method
}
}
});
alert(My.Base.method(10)); // alerts 10
alert(My.Derived2.method(10)); // alerts 20
Lastly, it also works with overridden static methods.
Ext.define('My.Derived2Override', {
override: 'My.Derived2',
statics: {
method: function (x) {
return this.callParent([x*2]); // calls My.Derived2.method
}
}
});
alert(My.Derived2.method(10)); // now alerts 40
To override a method and replace it and also call the superclass method, use callSuper. This is often done to patch a method to fix a bug.
Available since: 2.0.0
Parameters
- args : Array/Arguments
The arguments, either an array or the
argumentsobject from the current method, for example:this.callParent(arguments)
Returns
- Object
Returns the result of calling the parent method
This method is used by an override to call the superclass method but bypass any overridden method. This is often done to "patch" a method that contains a bug but for whatever reason cannot be fixed directly.
Consider:
Ext.define('Ext.some.Class', {
method: function () {
console.log('Good');
}
});
Ext.define('Ext.some.DerivedClass', {
method: function () {
console.log('Bad');
// ... logic but with a bug ...
this.callParent();
}
});
To patch the bug in DerivedClass.method, the typical solution is to create an
override:
Ext.define('App.paches.DerivedClass', {
override: 'Ext.some.DerivedClass',
method: function () {
console.log('Fixed');
// ... logic but with bug fixed ...
this.callSuper();
}
});
The patch method cannot use callParent to call the superclass method since
that would call the overridden method containing the bug. In other words, the
above patch would only produce "Fixed" then "Good" in the console log, whereas,
using callParent would produce "Fixed" then "Bad" then "Good".
Available since: 2.1.0
Parameters
- args : Array/Arguments
The arguments, either an array or the
argumentsobject from the current method, for example:this.callSuper(arguments)
Returns
- Object
Returns the result of calling the superclass method
Available since: 2.0.0
Overrides: Ext.mixin.Observable.destroy, Ext.Container.destroy, Ext.draw.sprite.Sprite.destroy, Ext.dataview.DataView.destroy
Initialize configuration for this class. a typical example:
Ext.define('My.awesome.Class', {
// The default config
config: {
name: 'Awesome',
isAwesome: true
},
constructor: function(config) {
this.initConfig(config);
}
});
var awesome = new My.awesome.Class({
name: 'Super Awesome'
});
alert(awesome.getName()); // 'Super Awesome'
Available since: 2.0.0
Parameters
- instanceConfig : Object
Returns
- Object
mixins The mixin prototypes as key - value pairs
Read associated data
Available since: 2.0.0
Parameters
- record : Ext.data.Model
The record we're writing to.
- reader : Ext.data.reader.Reader
The reader for the associated model.
- associationData : Object
The raw associated data.
Get the reference to the class from which this object was instantiated. Note that unlike self,
this.statics() is scope-independent and it always returns the class from which it was called, regardless of what
this points to during run-time
Ext.define('My.Cat', {
statics: {
totalCreated: 0,
speciesName: 'Cat' // My.Cat.speciesName = 'Cat'
},
constructor: function() {
var statics = this.statics();
alert(statics.speciesName); // always equals to 'Cat' no matter what 'this' refers to
// equivalent to: My.Cat.speciesName
alert(this.self.speciesName); // dependent on 'this'
statics.totalCreated++;
},
clone: function() {
var cloned = new this.self(); // dependent on 'this'
cloned.groupName = this.statics().speciesName; // equivalent to: My.Cat.speciesName
return cloned;
}
});
Ext.define('My.SnowLeopard', {
extend: 'My.Cat',
statics: {
speciesName: 'Snow Leopard' // My.SnowLeopard.speciesName = 'Snow Leopard'
},
constructor: function() {
this.callParent();
}
});
var cat = new My.Cat(); // alerts 'Cat', then alerts 'Cat'
var snowLeopard = new My.SnowLeopard(); // alerts 'Cat', then alerts 'Snow Leopard'
var clone = snowLeopard.clone();
alert(Ext.getClassName(clone)); // alerts 'My.SnowLeopard'
alert(clone.groupName); // alerts 'Cat'
alert(My.Cat.totalCreated); // alerts 3
Available since: 2.0.0
Returns
Static Methods addConfig( config, fullMerge )privatestatic addMember( name, member )chainableprivatestatic addMembers( members )chainablestaticAdd methods / properties to the prototype of this class. ...Add methods / properties to the prototype of this class.
Ext.define('My.awesome.Cat', {
constructor: function() {
// ...
}
});
My.awesome.Cat.addMembers({
meow: function() {
alert('Meowww...');
}
});
var kitty = new My.awesome.Cat();
kitty.meow();
Available since: 2.0.0
Parameters
- members : Object
Add / override static properties of this class. ...Add / override static properties of this class.
Ext.define('My.cool.Class', {
// this.se
});
My.cool.Class.addStatics({
someProperty: 'someValue', // My.cool.Class.someProperty = 'someValue'
method1: function() { }, // My.cool.Class.method1 = function() { ... };
method2: function() { } // My.cool.Class.method2 = function() { ... };
});
Available since: 2.0.0
Parameters
- members : Object
Returns
- Ext.Base
this
Borrow another class' members to the prototype of this class. ...Borrow another class' members to the prototype of this class.
Ext.define('Bank', {
money: '$$$',
printMoney: function() {
alert('$$$$$$$');
}
});
Ext.define('Thief', {
// ...
});
Thief.borrow(Bank, ['money', 'printMoney']);
var steve = new Thief();
alert(steve.money); // alerts '$$$'
steve.printMoney(); // alerts '$$$$$$$'
Available since: 2.0.0
Parameters
- fromClass : Ext.Base
The class to borrow members from
- members : Array/String
The names of the members to borrow
Returns
- Ext.Base
this
Create a new instance of this Class. ...Create a new instance of this Class.
Ext.define('My.cool.Class', {
// ...
});
My.cool.Class.create({
someConfig: true
});
All parameters are passed to the constructor of the class.
Available since: 2.0.0
Returns
- Object
the created instance.
createAlias( alias, origin )staticCreate aliases for existing prototype methods. ...Create aliases for existing prototype methods. Example:
Ext.define('My.cool.Class', {
method1: function() { },
method2: function() { }
});
var test = new My.cool.Class();
My.cool.Class.createAlias({
method3: 'method1',
method4: 'method2'
});
test.method3(); // test.method1()
My.cool.Class.createAlias('method5', 'method3');
test.method5(); // test.method3() -> test.method1()
Available since: 2.0.0
Parameters
- alias : String/Object
The new method name, or an object to set multiple aliases. See
flexSetter
- origin : String/Object
The original method name
Get the current class' name in string format. ...Get the current class' name in string format.
Ext.define('My.cool.Class', {
constructor: function() {
alert(this.self.getName()); // alerts 'My.cool.Class'
}
});
My.cool.Class.getName(); // 'My.cool.Class'
Available since: 2.0.0
Returns
- String
className
mixin( name, mixinClass )privatestatic onExtended( fn, scope )chainableprivatestatic Override members of this class. ...Override members of this class. Overridden methods can be invoked via
callParent.
Ext.define('My.Cat', {
constructor: function() {
alert("I'm a cat!");
}
});
My.Cat.override({
constructor: function() {
alert("I'm going to be a cat!");
var instance = this.callParent(arguments);
alert("Meeeeoooowwww");
return instance;
}
});
var kitty = new My.Cat(); // alerts "I'm going to be a cat!"
// alerts "I'm a cat!"
// alerts "Meeeeoooowwww"
As of 2.1, direct use of this method is deprecated. Use Ext.define
instead:
Ext.define('My.CatOverride', {
override: 'My.Cat',
constructor: function() {
alert("I'm going to be a cat!");
var instance = this.callParent(arguments);
alert("Meeeeoooowwww");
return instance;
}
});
The above accomplishes the same result but can be managed by the Ext.Loader
which can properly order the override and its target class and the build process
can determine whether the override is needed based on the required state of the
target class (My.Cat).
This method has been deprecated since 2.1.0
Please use Ext.define instead
Available since: 2.0.0
Parameters
- members : Object
The properties to add to this class. This should be
specified as an object literal containing one or more properties.
Returns
- Ext.Base
this class
Add methods / properties to the prototype of this class.
Ext.define('My.awesome.Cat', {
constructor: function() {
// ...
}
});
My.awesome.Cat.addMembers({
meow: function() {
alert('Meowww...');
}
});
var kitty = new My.awesome.Cat();
kitty.meow();
Available since: 2.0.0
Parameters
- members : Object
Add / override static properties of this class.
Ext.define('My.cool.Class', {
// this.se
});
My.cool.Class.addStatics({
someProperty: 'someValue', // My.cool.Class.someProperty = 'someValue'
method1: function() { }, // My.cool.Class.method1 = function() { ... };
method2: function() { } // My.cool.Class.method2 = function() { ... };
});
Available since: 2.0.0
Parameters
- members : Object
Returns
- Ext.Base
this
Borrow another class' members to the prototype of this class.
Ext.define('Bank', {
money: '$$$',
printMoney: function() {
alert('$$$$$$$');
}
});
Ext.define('Thief', {
// ...
});
Thief.borrow(Bank, ['money', 'printMoney']);
var steve = new Thief();
alert(steve.money); // alerts '$$$'
steve.printMoney(); // alerts '$$$$$$$'
Available since: 2.0.0
Parameters
- fromClass : Ext.Base
The class to borrow members from
- members : Array/String
The names of the members to borrow
Returns
- Ext.Base
this
Create a new instance of this Class.
Ext.define('My.cool.Class', {
// ...
});
My.cool.Class.create({
someConfig: true
});
All parameters are passed to the constructor of the class.
Available since: 2.0.0
Returns
- Object
the created instance.
Create aliases for existing prototype methods. Example:
Ext.define('My.cool.Class', {
method1: function() { },
method2: function() { }
});
var test = new My.cool.Class();
My.cool.Class.createAlias({
method3: 'method1',
method4: 'method2'
});
test.method3(); // test.method1()
My.cool.Class.createAlias('method5', 'method3');
test.method5(); // test.method3() -> test.method1()
Available since: 2.0.0
Parameters
- alias : String/Object
The new method name, or an object to set multiple aliases. See flexSetter
- origin : String/Object
The original method name
Get the current class' name in string format.
Ext.define('My.cool.Class', {
constructor: function() {
alert(this.self.getName()); // alerts 'My.cool.Class'
}
});
My.cool.Class.getName(); // 'My.cool.Class'
Available since: 2.0.0
Returns
- String
className
Override members of this class. Overridden methods can be invoked via callParent.
Ext.define('My.Cat', {
constructor: function() {
alert("I'm a cat!");
}
});
My.Cat.override({
constructor: function() {
alert("I'm going to be a cat!");
var instance = this.callParent(arguments);
alert("Meeeeoooowwww");
return instance;
}
});
var kitty = new My.Cat(); // alerts "I'm going to be a cat!"
// alerts "I'm a cat!"
// alerts "Meeeeoooowwww"
As of 2.1, direct use of this method is deprecated. Use Ext.define instead:
Ext.define('My.CatOverride', {
override: 'My.Cat',
constructor: function() {
alert("I'm going to be a cat!");
var instance = this.callParent(arguments);
alert("Meeeeoooowwww");
return instance;
}
});
The above accomplishes the same result but can be managed by the Ext.Loader which can properly order the override and its target class and the build process can determine whether the override is needed based on the required state of the target class (My.Cat).
This method has been deprecated since 2.1.0
Please use Ext.define instead
Available since: 2.0.0
Parameters
- members : Object
The properties to add to this class. This should be specified as an object literal containing one or more properties.
Returns
- Ext.Base
this class