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POAdding Parameters to Backbone.js collection causing ArgumentError (wrong number of arguments ... for filter method
 

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  1. POAdding Parameters to Backbone.js collection causing ArgumentError (wrong number of arguments ... for filter method
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    <p>I can sync with my backbone server perfectly well using the collection.fetch method</p> <pre><code>UserActionCollection extends Backbone.Collection url: "/api/user_actions" model: UserActionModel userActions = new UserActionCollection() userActions.fetch() </code></pre> <p>This fills up my collection with the expected models</p> <p>However when I attempt to add a data filter</p> <pre><code>userActions.fetch({data: $.param({collabList: true })}) </code></pre> <p>My ruby on rails server pops up this error:</p> <pre><code>Processing by UserActionsController#index as JSON Parameters: {"collabList"=&gt;"true"} Completed 500 Internal Server Error in 9214ms ArgumentError (wrong number of arguments (0 for 1..2)): app/models/user_action.rb:16:in `filter_by_params' app/controllers/user_actions_controller.rb:14:in `index' </code></pre> <p>My Controller for the index fetch is:</p> <pre><code> def index respond_with UserAction.filter_by_params(params) end </code></pre> <p>My Model Definition with the definition for filter_by_params</p> <pre><code>class UserAction &lt; ActiveRecord::Base attr_accessible :action, :context, :itemID, :itemType, :userId, :userName, :userEmail def self.filter_by_params(params) scoped = self.scoped if (params[:collabList]) scoped = scoped.uniq.pluck(:userName) end return scoped end end </code></pre> <p>I stuck a binding.pry at the controllers index method and when I call userActions.fetch() the params value is:</p> <pre><code>[1] pry(#&lt;UserActionsController&gt;)&gt; params =&gt; {"action"=&gt;"index", "controller"=&gt;"user_actions"} </code></pre> <p>And everything works when I continue.</p> <p>When I call the userActions.fetch({data: $.param({collabList: true })}) you can see the params value below:</p> <pre><code> 12: def index =&gt; 13: binding.pry 14: respond_with UserAction.filter_by_params(params) 15: end [1] pry(#&lt;UserActionsController&gt;)&gt; params =&gt; {"collabList"=&gt;"true", "action"=&gt;"index", "controller"=&gt;"user_actions"} </code></pre> <p>When I type next and process line 14, It throws an exception </p> <pre><code>#&lt;ArgumentError: wrong number of arguments (0 for 1..2)&gt; </code></pre> <p>Am I passing in parameters incorrectly?<br> Is there some reason the params variable isn't being passed in?</p> <p>Thanks for any help/insight you can give me!</p>
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