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in Technique[技术] by (71.8m points)

backbone.js fetch results cached

I am using fetch in the index action of the following backbone.js controller:

App.Controllers.PlanMembers = Backbone.Controller.extend({
    routes: {
        "": "index"
    },

    index: function () {
        var planMembers = new App.Collections.PlanMembers();

        planMembers.fetch({
            success: function () {
                var recoveryTeam = planMembers.select(function (planMember) {
                    return planMember.get("TeamMemberRole") == "RecoveryTeam";
                });

                var otherMembers = planMembers.select(function (planMember) {
                    return planMember.get("TeamMemberRole") == "Other";
                });

                new App.Views.Index({ collection: { name: "Team", members: recoveryTeam }, el: $('#recoveryTeam') });

                new App.Views.Index({ collection: { name: "Team", members: otherMembers }, el: $('#otherTeam') });
            },
            error: function () {
                alert('failure');
                showErrorMessage("Error loading planMembers.");
            }
        });
    }
});

The problem is that the results are being cached. It does not pick up database changes. Is there anyway to tell backbone.js not to cache the results?

I know I could override the url of the collection and append a timestamp but I am looking for something a bit cleaner than that.

question from:https://stackoverflow.com/questions/6178366/backbone-js-fetch-results-cached

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1 Reply

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by (71.8m points)

This is a problem on IE usually and backbone has nothing to do with it. You have to go down to the jQuery ajax call and look at the doc. Backbone uses jquery ajax for its sync method. You can do something like this to force ajax call on all browsers:

$.ajaxSetup({ cache: false });

http://api.jquery.com/jQuery.ajaxSetup/


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