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POhow to delete (splice) an element from nested JSON using AngularJS
 

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  1. POhow to delete (splice) an element from nested JSON using AngularJS
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    <p>I have a nested JSON structured like this:</p> <pre><code>[{ "phone_id" : "1", "phone_name" : "nokia", "phone_img" : "/src/imgs/nokia.jpg", "phone_comments" : [ { "comment_id" : "1", "user_id" : "32508", "comment_date" : "2001-02-01", "user_comment" : "This was the first phone that was rock solid from Nokia" }, { "comment_id" : "2", "user_id" : "32518", "comment_date" : "2001-02-02", "user_comment" : "Great phone before the smartphone age" }, { "comment_id" : "3", "user_id" : "22550", "comment_date" : "2002-04-01", "user_comment" : "Reminds me of my grandpa's phone" }, { "comment_id" : "4", "user_id" : "31099", "comment_date" : "2001-05-11", "user_comment" : "It was a crappy one!" } ] } ] </code></pre> <p>Display part (works) - I m able to display the phone image on the 1st table column and on ng-click I load the second column with information about the phone with comments. This works perfectly fine. </p> <p>Deletion (not working) - I have question about deleting comments. I do not want to be delete the whole phone object, but only specific comments. Can I pass something like ???</p> <pre><code>remove(comment, $index) </code></pre> <p>and then have a function that does the following?</p> <pre><code>$scope.remove = function (index, comments) { alert(comments.user_comment + index); $scope.comments.splice(index, 1); } </code></pre> <p>For reference, the HTML looks something like :</p> <pre><code>&lt;div ng-app="angularJSApp"&gt; &lt;div ng-controller="PhoneCtrl"&gt; &lt;br/&gt;&lt;br/&gt;&lt;br/&gt; &lt;table width="100%" border="1"&gt; &lt;tr ng-repeat="ph in phones"&gt; &lt;td width="20%"&gt;&lt;a href="#" ng-click="showComments = ! showComments"&gt;&lt;img width="50%" ng-src="{{ph.phone_img}}"&gt;&lt;/a&gt;&lt;/td&gt; &lt;td&gt; &lt;p&gt;Phone Id: {{ph.phone_id}}&lt;/p&gt; &lt;p&gt;Phone Name: {{ph.phone_name}}&lt;/p&gt; &lt;p&gt;Number of comments: {{ph.phone_comments.length}}&lt;/p&gt; &lt;div class="shComments" ng-show="showComments"&gt; &lt;p&gt;Search: &lt;input ng-model="query"&gt;&lt;/p&gt; &lt;table border="1" width="100%"&gt; &lt;thead&gt; &lt;tr&gt; &lt;th&gt;&lt;a href="" ng-click="predicate = 'comment_id'; reverse = !reverse"&gt;Id&lt;/a&gt;&lt;/th&gt; &lt;th&gt;&lt;a href="" ng-click="predicate = 'user_comment'; reverse = false"&gt;Comment&lt;/a&gt; (&lt;a href="" ng-click="predicate = '-user_comment'; reverse = false"&gt;^&lt;/a&gt;) &lt;/th&gt; &lt;th&gt;&lt;a href="" ng-click="predicate = 'comment_date'; reverse = !reverse"&gt;Date&lt;/a&gt;&lt;/th&gt; &lt;th&gt;&lt;a href="" ng-click="predicate = 'user_id'; reverse = !reverse"&gt;User&lt;/th&gt; &lt;th&gt;&lt;/th&gt; &lt;/tr&gt; &lt;/thead&gt; &lt;tbody&gt; &lt;tr ng-repeat="comment in ph.phone_comments | filter:query | orderBy:predicate:reverse"&gt; &lt;th&gt;{{comment.comment_id}} &lt;th&gt;{{comment.user_comment}}&lt;/th&gt; &lt;th&gt;{{comment.comment_date}}&lt;/th&gt; &lt;th&gt;{{comment.user_id}}&lt;/th&gt; &lt;th&gt;&lt;button ng-click="remove($index, comment)"&gt;Remove Comment&lt;/button&gt; &lt;/tr&gt; &lt;/tbody&gt; &lt;/table&gt; &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/div&gt; &lt;/div&gt; </code></pre> <p>P.S: I have been experimenting with AngularJS and I m asking this after having looked for solutions as much as I can. Thanks for your help.</p>
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