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How to display records while omitting repetitive fields in AngularJS
Posted on 2016-10-25
I have the following record I am retrieving from Web API:
The content is something like this:
I am displaying it withi my AngularJS application as follows:
This way the first 3 fields are repeating for each record with the same record ID. I was wondering if I can somehow only display RecordID, RecordDate, and Person Name in a row if it is not repeating.
For example:
How can I accomplish that with Angular?
FullRecord
_______
RecordID
RecordDate
PersonName
RecordNote
LineOrder
The content is something like this:
RecordID RecordDate PersonName RecordNote LineOrder
1 10/25/2016 John Doe test1 1
1 10/25/2016 John Doe test2 2
1 10/25/2016 John Doe test3 3
2 10/25/2016 Jane Doe testing23 1
2 10/25/2016 Jane Does testing27 2
I am displaying it withi my AngularJS application as follows:
<tbody>
<tr ng-repeat="Record in Records">
<td>{{Record.RecordID}}</td>
<td>{{Record.RecordDate}}</td>
<td>{{Record.PersonName}}</td>
<td>{{Record.RecordNote}}</td>
<td>{{Record.LineOrder}}</td>
</tr>
</tbody>
This way the first 3 fields are repeating for each record with the same record ID. I was wondering if I can somehow only display RecordID, RecordDate, and Person Name in a row if it is not repeating.
For example:
RecordID RecordDate PersonName RecordNote LineOrder
1 10/25/2016 John Doe test1 1
test2 2
test3 3
2 10/25/2016 Jane Doe testing23 1
testing27 2
How can I accomplish that with Angular?
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6 Comments
Active 1 day ago
Well you want the same number of records as before but the fields RecordId, RecordDate and personName to be surpressed, so the best way would be to construct a Javascript array of objects where the objects have the relevant fields missing. Presumably if you are loading via a service then either add the function to the service or create the array in scope after calling the service. The Javascript is straightforward - one looks at the previous array entry to see if the RecordId is the same or not.
The only other problem is that the table cells would refer to a missing object field. So the best way would be to create, in the new array, the fields with a blank or a non-breaking space so that the table gets rendered properly.
The only other problem is that the table cells would refer to a missing object field. So the best way would be to create, in the new array, the fields with a blank or a non-breaking space so that the table gets rendered properly.
Active 3 days ago
Test page : https://jsfiddle.net/fg7esfmx/
<table ng-app="myApp">
<tbody ng-controller="MyCtrl">
<tr ng-repeat="Record in Records">
<td><span ng-show="Records[$index-1].RecordID != Record.RecordID">{{Record.RecordID}}</span></td>
<td><span ng-show="Records[$index-1].RecordID != Record.RecordID">{{Record.RecordDate}}</span></td>
<td><span ng-show="Records[$index-1].RecordID != Record.RecordID">{{Record.PersonName}}</span></td>
<td>{{Record.RecordNote}}</td>
<td>{{Record.LineOrder}}</td>
</tr>
</tbody>
</table>
angular.module("myApp", [])
.controller("MyCtrl", ["$scope", function($scope) {
$scope.Records =
[
{RecordID:1, RecordDate:"10/25/2016", PersonName:"John Doe", RecordNote:"test1", LineOrder:1 },
{RecordID:1, RecordDate:"10/25/2016", PersonName:"John Doe", RecordNote:"test2", LineOrder:2 },
{RecordID:1, RecordDate:"10/25/2016", PersonName:"John Doe", RecordNote:"test3", LineOrder:3 },
{RecordID:2, RecordDate:"10/25/2016", PersonName:"Jane Doe", RecordNote:"test23", LineOrder:1 },
{RecordID:2, RecordDate:"10/25/2016", PersonName:"Jane Does", RecordNote:"test27", LineOrder:1 }
];
}]);
Active today
An implementation of BigRat's suggestion
HTML
HTML
<table class="table">
<tr ng-repeat="Record in ctrl.Records">
<td>{{Record.RecordID}}</td>
<td>{{Record.RecordDate}}</td>
<td>{{Record.PersonName}}</td>
<td>{{Record.RecordNote}}</td>
<td>{{Record.LineOrder}}</td>
</tr>
</table>
<script>
(function(angular) {
'use strict';
angular.module('app',[])
.controller('mainCtrl', mainController)
.factory('RecordService', recordSVC);
function mainController(RecordService)
{
var ctrl = this;
RecordService.query().then(function(items) {
var result = [];
var n;
for(var i=0;i < items.length;i++) {
n = { };
for(var j in items[i]) {
var v = items[i][j];
n[j] = (i ==0 || items[i][j] != items[i-1][j]) ? items[i][j] : '';
}
result.push(n);
}
ctrl.Records = result;
});
}
function recordSVC($q)
{
var data = [{
"RecordID":1,
"RecordDate":"10/25/2016 ",
"PersonName":"John Doe",
"RecordNote":"test1",
"LineOrder":"1"
},{
"RecordID":1,
"RecordDate":"10/25/2016 ",
"PersonName":"John Doe",
"RecordNote":"test2",
"LineOrder":2
},{
"RecordID":1,
"RecordDate":"10/25/2016 ",
"PersonName":"John Doe",
"RecordNote":"test3",
"LineOrder":3
},{
"RecordID":2,
"RecordDate":"10/25/2016",
"PersonName":"Jane Doe",
"RecordNote":"testing23",
"LineOrder":1
},{
"RecordID":2,
"RecordDate":"10/25/2016",
"PersonName":"Jane Does",
"RecordNote":"testing27",
"LineOrder":2
}];
function query()
{
return $q(function(resolve, reject) {
resolve(data);
});
}
return {
query: query
}
}
})(window.angular);
</script>
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