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From "Andrii Babiichuk (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-13939) Implement Em.computed macros
Date Wed, 18 Nov 2015 10:25:11 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-13939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15010694#comment-15010694
] 

Andrii Babiichuk commented on AMBARI-13939:
-------------------------------------------

+1 for the patch

> Implement Em.computed macros
> ----------------------------
>
>                 Key: AMBARI-13939
>                 URL: https://issues.apache.org/jira/browse/AMBARI-13939
>             Project: Ambari
>          Issue Type: Task
>          Components: ambari-web
>    Affects Versions: 2.2.0
>            Reporter: Oleg Nechiporenko
>            Assignee: Oleg Nechiporenko
>             Fix For: 2.2.0
>
>         Attachments: AMBARI-13939.patch
>
>
> Ember v1.0.0 has three macros for {{Em.computed}}:
> * not
> * empty
> * bool
> {{Em.computed}} may be extended with a lot of other macros that will make code to be
easier to understand:
> ||Name (Em.computed.*)||Description||
> |equal|A computed property that returns true if the provided dependent property is equal
to the given value (already implemented)|
> |notEqual|A computed property that returns true if the provided dependent property is
not equal to the given value|
> |equalProperties|A computed property that returns true if provided dependent properties
are equal to the each other|
> |notEqualProperties|A computed property that returns true if provided dependent properties
are not equal to the each other|
> |groupBy|A computed property that returns grouped collection's items by propertyName-value|
> |filterByMany|A computed property that returns filtered collection by propertyName values-list.
Wrapper to filterProperty-method that allows using list of values to filter|
> |rejectMany|A computed property that returns collection without elements with value that
is in the list of values to reject|
> |ifThenElse|A computed property that returns trueValue if dependent value is true and
falseValue otherwise|
> |and|A computed property that is equal to the logical 'and'|
> |or|A computed property that is equal to the logical 'or'|
> |sumProperties|A computed property that returns sum on the dependent properties values|
> |gte| A computed property that returns true if dependent value is greater or equal to
the needed value|
> |gteProperties|A computed property that returns true if first dependent property is greater
or equal to the second dependent property|
> |lte|A computed property that returns true if dependent property is less or equal to
the needed value|
> |lteProperties|A computed property that returns true if first dependent property is less
or equal to the second dependent property|
> |gt|A computed property that returns true if dependent value is greater than the needed
value|
> |gtProperties|A computed property that returns true if first dependent property is greater
than the second dependent property|
> |lt|A computed property that returns true if dependent value is less than the needed
value|
> |ltProperties|A computed property that returns true if first dependent property is less
than the second dependent property|
> |match|A computed property that returns true if dependent property is match to the needed
regular expression|
> |someBy|A computed property that returns true of some collection's item has property
with needed value|
> |everyBy|A computed property that returns true of all collection's items have property
with needed value|
> |mapBy|A computed property that returns array with values of named property on all items
in the collection|
> |filterBy|A computed property that returns array with collection's items that have needed
property value|
> |findBy|A computed property that returns first collection's item that has needed property
value|
> |alias|A computed property that returns value equal to the dependent. Should be used
as 'short-name' for deeply-nested values|
> |existsIn|A computed property that returns true if dependent property exists in the needed
values|



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