I am working with a child directive named dropDownSortMenu. One of the elements inside this child directive contains an ng-click function. When this function is triggered, I need it to call a function from the parent directive called customTable.
You can find the Plnkr example at: http://plnkr.co/edit/7b2mce9jsAXmJpfKjgdx
It seems like you were almost there with the correct method. Your controller was already in place, but a couple of key elements were missing:
this)require: '^customTable'. The caret symbol (^) indicates that we are searching for a controller in a parent directive.With these adjustments, the dropDownSortMenu's link function will have access to the parent controller's context for further modifications.
Utilize the scope's event dispatchers; $emit(name, args) is specifically used to send events up to parent scopes, while $broadcast(name, args) will propagate events downwards through the hierarchy.
For catching triggered events, make use of $on(name, listener) listeners.
Alternatively, you may reference $scope.$parent to navigate upwards in the chain (or $scope.$parent.$parent and so on), but this practice is discouraged - it requires looking up the scope hierarchy at a fixed number of levels which could make your code inflexible (imagine altering the scope nesting levels by adding an ng-repeat somewhere).
In certain cases, you can also incorporate transclusion within the directive - allowing your model to exist outside the isolated scope of the directive, hence facilitating natural access to any controller higher up in the hierarchy (assuming there are no isolated scopes blocking the way).
Refer to the $compile service documentation for further details on the transclude property of directives.
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