So this might be hard to explain but basically I cant figure out how to evaluate an object's field value to a string that the directive will use to assign data from the scope.... I have the following template directive:
<hot-column ng-repeat="column in columns"
data="{{column.fieldName}}"
title="column.title"
source="column.lookupField"> // <-- I need this to evaluate to the **"list_currency"** (which I will set on the scope) I cant figure out how this needs to look
</hot-column>
where my column objects are like this:
[
{
"fieldName": "ccy1",
"title": "Ccy1",
"lookupField": "list_currency"
},
{
"fieldName": "ccy2",
"title": "Ccy2"
}
]
And in the controller i have this scope variable:
$scope.list_currency = ["USD", "EUR"];
I have tried some combinations none of which work:
source="{{column.lookupField}}" // ==> angular.js:13424 Error: [$parse:syntax] Syntax Error: Token '{' invalid key at column 2 of the expression [{{column.lookupField}}] starting at [{{column.lookupField}}].
source="'{{column.lookupField}}'"
source="column.lookupField"
source="'column.lookupField'"
I think your problem is that you need angular to evaluate the expression twice:
You need the "column.lookupField" expression to be evaluated first, to return "list_currency", but then you need the "list_currency" expression to be evaluated to return the actual array.
You should be able to do this by adding a getColumnSource() method to your controller - like this:
$scope.getColumnSource = function(column) {
return $scope.$eval(column.lookupField);
}
Your html then looks like this:
<hot-column ng-repeat="column in columns"
data="{{column.fieldName}}"
title="column.title"
source="getColumnSource(column)">
</hot-column>
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