The documentation for the ExtReact product diverges somewhat from the
documentation of other Sencha products. The sections below describe
documentation for all products except where indicated as unique to
ExtReact.
Many classes have shortcut names used when creating (instantiating) a class with a
configuration object. The shortcut name is referred to as an alias (or xtype if the
class extends Ext.Component). The alias/xtype is listed next to the class name of
applicable classes for quick reference.
ExtReact component classes list the configurable name prominently at the top of the API class doc followed by the fully-qualified class name.
Framework classes or their members may be specified as private or protected. Else,
the class / member is public. Public, protected, and private are access
descriptors used to convey how and when the class or class member should be used.
Public classes and class members are available for use by any other class or application code and may be relied upon as a stable and persistent within major product versions. Public classes and members may safely be extended via a subclass.
Protected class members are stable public members intended to be used by the
owning class or its subclasses. Protected members may safely be extended via a subclass.
Private classes and class members are used internally by the framework and are not intended to be used by application developers. Private classes and members may change or be omitted from the framework at any time without notice and should not be relied upon in application logic.
ExtReact component classes display
configuration options as props
ExtReact component classes do not list
properties as a dedicated member type, but rather as
read only props
static label next to the
method name. *See Static below.Below is an example class member that we can disect to show the syntax of a class member (the lookupComponent method as viewed from the Ext.button.Button class in this case).
Let's look at each part of the member row:
lookupComponent in this example)( item ) in this example)Ext.Component in this case). This may be omitted for methods that do not
return anything other than undefined or may display as multiple possible values
separated by a forward slash / signifying that what is returned may depend on the
results of the method call (i.e. a method may return a Component if a get method calls is
successful or false if unsuccessful which would be displayed as
Ext.Component/Boolean).PROTECTED in
this example - see the Flags section below)Ext.container.Container in this example). The source
class will be displayed as a blue link if the member originates from the current class
and gray if it is inherited from an ancestor or mixed-in class.view source in the example)item : Object in the example).undefined a "Returns" section
will note the type of class or object returned and a description (Ext.Component in the
example)Available since 3.4.0 - not pictured in
the example) just after the member descriptionDefaults to: false)The API documentation uses a number of flags to further commnicate the class member's function and intent. The label may be represented by a text label, an abbreviation, or an icon.
All ExtReact props are bindable
unless decorated as immutable
Immutable ExtReact props may not be use as a configurable prop when instantiating a component
classInstance.method1().method2().etc();false is returned from
an event handler- Indicates a framework class
- A singleton framework class. *See the singleton flag for more information
- A component-type framework class (any class within the Ext JS framework that extends Ext.Component)
- Indicates that the class, member, or guide is new in the currently viewed version
- Indicates a class member of type config
Or in the case of an ExtReact component class this
indicates a member of type prop
- Indicates a class member of type property
- Indicates a class member of type
method
- Indicates a class member of type event
- Indicates a class member of type
theme variable
- Indicates a class member of type
theme mixin
- Indicates that the class, member, or guide is new in the currently viewed version
Just below the class name on an API doc page is a row of buttons corresponding to the types of members owned by the current class. Each button shows a count of members by type (this count is updated as filters are applied). Clicking the button will navigate you to that member section. Hovering over the member-type button will reveal a popup menu of all members of that type for quick navigation.
Getting and setter methods that correlate to a class config option will show up in the methods section as well as in the configs section of both the API doc and the member-type menus just beneath the config they work with. The getter and setter method documentation will be found in the config row for easy reference.
ExtReact component classes do not hoist the getter /
setter methods into the prop. All methods will be described in the
Methods section
Your page history is kept in localstorage and displayed (using the available real estate) just below the top title bar. By default, the only search results shown are the pages matching the product / version you're currently viewing. You can expand what is displayed by clicking on the button on the right-hand side of the history bar and choosing the "All" radio option. This will show all recent pages in the history bar for all products / versions.
Within the history config menu you will also see a listing of your recent page visits. The results are filtered by the "Current Product / Version" and "All" radio options. Clicking on the button will clear the history bar as well as the history kept in local storage.
If "All" is selected in the history config menu the checkbox option for "Show product details in the history bar" will be enabled. When checked, the product/version for each historic page will show alongside the page name in the history bar. Hovering the cursor over the page names in the history bar will also show the product/version as a tooltip.
Both API docs and guides can be searched for using the search field at the top of the page.
On API doc pages there is also a filter input field that filters the member rows using the filter string. In addition to filtering by string you can filter the class members by access level, inheritance, and read only. This is done using the checkboxes at the top of the page.
The checkbox at the bottom of the API class navigation tree filters the class list to include or exclude private classes.
Clicking on an empty search field will show your last 10 searches for quick navigation.
Each API doc page (with the exception of Javascript primitives pages) has a menu view of metadata relating to that class. This metadata view will have one or more of the following:
Ext.button.Button class has an alternate class name of Ext.Button). Alternate class
names are commonly maintained for backward compatibility.Runnable examples (Fiddles) are expanded on a page by default. You can collapse and expand example code blocks individually using the arrow on the top-left of the code block. You can also toggle the collapse state of all examples using the toggle button on the top-right of the page. The toggle-all state will be remembered between page loads.
Class members are collapsed on a page by default. You can expand and collapse members using the arrow icon on the left of the member row or globally using the expand / collapse all toggle button top-right.
Viewing the docs on narrower screens or browsers will result in a view optimized for a smaller form factor. The primary differences between the desktop and "mobile" view are:
The class source can be viewed by clicking on the class name at the top of an API doc page. The source for class members can be viewed by clicking on the "view source" link on the right-hand side of the member row.
A mixin that provides common store methods for Ext.data.Store & Ext.data.ChainedStore.
Adds Model instance to the Store. This method accepts either:
The new Model instances will be added at the end of the existing collection.
Sample usage:
myStore.add({some: 'data'}, {some: 'other data'});
Note that if this Store is sorted, the new Model instances will be inserted at the correct point in the Store to maintain the sort order.
record : Ext.data.Model[]/Ext.data.Model.../Object[]/Object...
An array of records or configuration objects, or variable number of record or config arguments.
The record instances that were added.
Runs the aggregate function for all the records in the store.
When store is filtered, only items within the filter are aggregated.
fn : Function
The function to execute. The function is called with a single parameter, an array of records for that group.
scope : Object (optional)
The scope to execute the function in. Defaults to the store.
grouped : Boolean (optional)
True to perform the operation for each group in the store. The value returned will be an object literal with the key being the group name and the group average being the value. The grouped parameter is only honored if the store has a groupField.
field : String
The field to get the value from
An object literal with the group names and their appropriate values.
Gets the average value in the store.
When store is filtered, only items within the filter are aggregated.
field : String
The field in each record
grouped : Boolean (optional)
True to perform the operation for each group in the store. The value returned will be an object literal with the key being the group name and the group average being the value. The grouped parameter is only honored if the store has a groupField.
The average value, if no items exist, 0.
Collects unique values for a particular dataIndex from this store.
Note that the filtered option can also be passed as a separate parameter for
compatibility with previous versions.
var store = new Ext.data.Store({
fields: ['name'],
data: [{
name: 'Larry'
}, {
name: 'Darryl'
}, {
name: 'Darryl'
}]
});
store.collect('name');
// returns ["Larry", "Darryl"]
property : String
The property to collect
includeOptions : Object (optional)
An object which contains options which modify how
the store is traversed. For compatibility, this argument may be the allowNull
value itself. If so, the next argument is the filtered value.
filtered : Boolean (optional)
This argument only applies when the legacy call form
is used and includeOptions is actually the allowNull value.
An array of the unique values
Gets the count of items in the store.
When store is filtered, only items within the filter are counted.
grouped : Boolean (optional)
True to perform the operation for each group in the store. The value returned will be an object literal with the key being the group name and the count for each group being the value. The grouped parameter is only honored if the store has a groupField.
the count
Calls the specified function for each Ext.data.Model in the store.
When store is filtered, only loops over the filtered records.
fn : Function
The function to call. The Ext.data.Model is passed as the first parameter.
Returning false aborts and exits the iteration.
scope : Object (optional)
The scope (this reference) in which the function is executed.
Defaults to the current Ext.data.Model in the iteration.
includeOptions : Object/Boolean (optional)
An object which contains options which
modify how the store is traversed. Or simply the filtered option.
filtered : Boolean (optional)
Pass true to include filtered out
nodes in the iteration.
Convenience function for getting the first model instance in the store.
When store is filtered, will return first item within the filter.
grouped : Boolean (optional)
True to perform the operation for each group in the store. The value returned will be an object literal with the key being the group name and the first record being the value. The grouped parameter is only honored if the store has a groupField.
The first model instance in the store, or undefined
Get the Record with the specified id.
This method is not affected by filtering, lookup will be performed from all records inside the store, filtered or not.
id : Mixed
The id of the Record to find.
The Record with the passed id. Returns null if not found.
Get the index of the record within the store.
When store is filtered, records outside of filter will not be found.
record : Ext.data.Model
The Ext.data.Model object to find.
The index of the passed Record. Returns -1 if not found.
Get the index within the store of the Record with the passed id.
Like #indexOf, this method is affected by filtering.
id : String
The id of the Record to find.
The index of the Record. Returns -1 if not found.
Inserts Model instances into the Store at the given index and fires the add event. See also method-add.
index : Number
The start index at which to insert the passed Records.
records : Ext.data.Model/Ext.data.Model[]/Object/Object[]
An Ext.data.Model instance, the
data needed to populate an instance or an array of either of these.
records The added records
Convenience function for getting the last model instance in the store.
When store is filtered, will return last item within the filter.
grouped : Boolean (optional)
True to perform the operation for each group in the store. The value returned will be an object literal with the key being the group name and the last record being the value. The grouped parameter is only honored if the store has a groupField.
The last model instance in the store, or undefined
Gets the maximum value in the store.
When store is filtered, only items within the filter are aggregated.
field : String
The field in each record
grouped : Boolean (optional)
True to perform the operation for each group in the store. The value returned will be an object literal with the key being the group name and the maximum in the group being the value. The grouped parameter is only honored if the store has a groupField.
The maximum value, if no items exist, undefined.
Gets the minimum value in the store.
When store is filtered, only items within the filter are aggregated.
field : String
The field in each record
grouped : Boolean (optional)
True to perform the operation for each group in the store. The value returned will be an object literal with the key being the group name and the minimum in the group being the value. The grouped parameter is only honored if the store has a groupField.
The minimum value, if no items exist, undefined.
Query all the cached records in this Store by name/value pair. The parameters will be used to generated a filter function that is given to the queryBy method.
This method complements queryBy by generating the query function automatically.
This method is not affected by filtering, it will always search all records in the store regardless of filtering.
property : String
The property to create the filter function for
value : String/RegExp
The string/regex to compare the property value to
anyMatch : Boolean (optional)
True to match any part of the string, not just the beginning.
Defaults to: false
caseSensitive : Boolean (optional)
true to create a case-sensitive regex.
Defaults to: false
exactMatch : Boolean (optional)
True to force exact match (^ and $ characters
added to the regex). Ignored if anyMatch is true.
Defaults to: false
The matched records
Query all the cached records in this Store using a filtering function. The specified function
will be called with each record in this Store. If the function returns true the record is
included in the results.
This method is not affected by filtering, it will always search all records in the store regardless of filtering.
fn : Function
The function to be called. It will be passed the following parameters:
record : Ext.data.Model
The record to test for filtering. Access field values using Ext.data.Model#get.
id : Object
The ID of the Record passed.
scope : Object (optional)
The scope (this reference) in which the function is executed Defaults to this Store.
The matched records
Sums the value of field for each Ext.data.Model in store
and returns the result.
When store is filtered, only sums items within the filter.
field : String
A field in each record
grouped : Boolean (optional)
True to perform the operation for each group in the store. The value returned will be an object literal with the key being the group name and the sum for that group being the value. The grouped parameter is only honored if the store has a groupField.
The sum
Override members of this class. Overridden methods can be invoked via Ext.Base#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!");
this.callParent(arguments);
alert("Meeeeoooowwww");
}
});
var kitty = new My.Cat(); // alerts "I'm going to be a cat!"
// alerts "I'm a cat!"
// alerts "Meeeeoooowwww"
Direct use of this method should be rare. Use Ext.define instead:
Ext.define('My.CatOverride', {
override: 'My.Cat',
constructor: function() {
alert("I'm going to be a cat!");
this.callParent(arguments);
alert("Meeeeoooowwww");
}
});
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).
members : Object
The properties to add to this class. This should be specified as an object literal containing one or more properties.
this class
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