IR Punch IR Punch - 5 months ago 13
AngularJS Question

Filter Embedded Json element from a Collection using AngularJS HTML

I'm having a JSON Collection, I wish to dispay Email ID which is marked as

IsPreffered = TRUE
using AngularJS HTML without .
user.Name

My JSON Collection :

{ "user" : [
{
"Name" : "B. Balamanigandan",
"Email": [
{
"Id": "bala@gmail.com",
"IsPreffered": true
},
{
"Id": "mani@gmail.com",
"IsPreffered": false
}
]}
]};


HTML Source Code:

<div>
<h3>Employee Details:</h3>
<span> {{collection.user.Name}} </span>
<span> {{collection.user.Email.Id}} </span>
</div>


The Collection
user
contains only one document. So, I didn't use ng-repeat.
user
is a Collection not a Document
. One more check I need. If more than one email has `IsPreferred == true', then I have the take the last one. Kindly assist me.

Kindly filter the condition using HTML Level not in JavaScript Level. Kindly assist me.

Answer

instead of this:

<div>
    <h3>Employee Details:</h3>
    <span> {{collection.user.Name}} </span>
    <span> {{collection.user.Email.Id}} </span>
</div>

you will have to do this:

<div>
    <h3>Employee Details:</h3>
    <span> {{collection.user[0].Name}} </span>

    <span ng-repeat="email in collection.user[0].email| filter: {IsPreffered : 'true'}"> {{email.Id}} </span>
</div>

You have to use array syntax, because although there is only 1 user object, it is structured in the json as an array ( note the [ ] , same for Email).

Here is a fiddle: http://jsfiddle.net/Lvc0u55v/5593/

UPDATE: For showing only the last email which is true, use ng-if:

<span ng-repeat="email in collection.user[0].Email| filter: {IsPreffered : true} " ng-if="$last"> {{email.Id}}</span>

Here is the updated fiddle: http://jsfiddle.net/Lvc0u55v/5594/