Seems this should not be so hard, but let me ask a simpler question:
In all the various hobo ajax examples, controller code typically says
something like this:
this.attributes = params[:project] || {}
hobo_ajax_response if request.xhr?
What is the purpose & function of the first of these two lines?
On Jul 9, 2:21 am, Montgomery Kosma <[email protected]> wrote:
> Trying a new, simpler approach to try to get my app working -- have to
> complete v1.0 asap, or cancel the project. To dodge my formlet
> troubles, I created a new show_action to add and delete
> ProjectCustodian (join table) associations, including:
>
> 1. a form with custodian name autocompleter and submit button
> 2. a table-plus, wrapped in a part, showing total number and list of
> custodians
>
> Almost everything works. But when add update="my-foo-part" to submit
> (to get the table and total to update) or update="total-custodians" to
> delete-button (just to update the count) I get a nasty pop-up dialog
> showing a bunch of html and an error message.
>
> My only thought is maybe I need to update @project_custodians somehow?
>
> Here's the controller code:
>
> show_action :editcustodians do
> @project = find_instance
> order = parse_sort_param("custodian.name", "custodian.type",
> "custodian.last_name")
> @project_custodians =
> @project.project_custodians.custodian_names_like(params
> [:search]).sort_custodians_by(order)
> this.attributes = params[:project] || {}
> hobo_ajax_response if request.xhr?
> end
>
> And the dryml:
>
> <show-page>
> <collection: replace>
> <form with="&ProjectCustodian.new" reset-form refocus-form
> update="my-foo-part">
> <% this.project_id = @project.id -%>
> <name-one:custodian complete-target="&@project"
> completer="new_custodian_name" />
> <submit label="Add Custodian" />
> </form>
>
> <div part="my-foo-part">
> <table-plus with="&@project_custodians" fields="custodian.name,
> custodian.custodian_type, custodian.last_name">
> <prepend-header:>
> <div part="total-custodians">
> <p class="subform-count">There <count prefix="are"/><%= "
> matching *#{params[:search]}*" unless params[:search].blank? %> </p>
> </div>
> </prepend-header:>
> <empty-message:>No custodians have been added to this
> project.</empty-message:>
> <controls:>
> <delete-button class="ui-icon ui-icon-circle-close"
> update="total-custodians"/>
> </controls:>
> </table-plus>
> </div>
> </collection:>
> </show-page>
>
> And the error from the log after hitting delete:
>
> NoMethodError (You have a nil object when you didn't expect it!
> You might have expected an instance of Array.
> The error occurred while evaluating nil.split):
> vendor/plugins/hobo/hobo/lib/hobo/dryml/part_context.rb:112:in
> `parse_this_id'
> vendor/plugins/hobo/hobo/lib/hobo/dryml/part_context.rb:90:in
> `unmarshal'
> vendor/plugins/hobo/hobo/lib/hobo/dryml/part_context.rb:49:in
> `for_refresh'
> vendor/plugins/hobo/hobo/lib/hobo/dryml/part_context.rb:55:in
> `initialize'
> vendor/plugins/hobo/hobo/lib/hobo/dryml/part_context.rb:48:in `new'
> vendor/plugins/hobo/hobo/lib/hobo/dryml/part_context.rb:48:in
> `for_refresh'
> vendor/plugins/hobo/hobo/lib/hobo/dryml/template_environment.rb:
> 166:in `refresh_part'
> vendor/plugins/hobo/hobo/lib/hobo/controller.rb:90:in
> `ajax_update_response'
> vendor/plugins/hobo/hobo/lib/hobo/controller.rb:85:in `each'
> vendor/plugins/hobo/hobo/lib/hobo/controller.rb:85:in
> `ajax_update_response'
> vendor/plugins/hobo/hobo/lib/hobo/model_controller.rb:758:in
> `render'
> vendor/plugins/hobo/hobo/lib/hobo/controller.rb:83:in
> `ajax_update_response'
> vendor/plugins/hobo/hobo/lib/hobo/controller.rb:71:in
> `hobo_ajax_response'
> vendor/plugins/hobo/hobo/lib/hobo/model_controller.rb:613:in
> `destroy_response'
> vendor/plugins/hobo/hobo/lib/hobo/model_controller.rb:611:in
> `destroy_response'
> vendor/plugins/hobo/hobo/lib/hobo/model_controller.rb:605:in
> `hobo_destroy'
> vendor/plugins/hobo/hobo/lib/hobo/model_controller.rb:157:in
> `destroy'
> vendor/plugins/hobo/hobo/lib/hobo/controller.rb:22:in `call'
> vendor/plugins/hobo/hobo/lib/hobo/controller.rb:22:in
> `included_in_class'
>
> Rendered rescues/_trace (240.0ms)
> Rendered rescues/_request_and_response (5.0ms)
> Rendering rescues/layout (internal_server_error)
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