filter array of json objects

Question

i have the following array of json objects.

[{"template":{"title":"title 1"}},{"template":{"title":"title 1"}},{"template":{"title":"title1111"}},{"template":{"title":""}},{"template":{"title":""}},{"template":{"title":"this is the title"}},{"template":{"title":"title232"}},{"template":{"title":"title with msg"}},{"template":{"title":"title with msg"}},{"template":{"title":"title with msg"}},{"template":{"title":"title with msg"}},{"template":{"title":"title with msg"}},{"template":{"title":"title with msg"}},{"template":{"title":"title with msg"}},{"template":{"title":"title with msg"}},{"template":{"title":"title with msg"}},{"template":{"title":"title with msg"}},{"template":{"title":"title with msg"}},{"template":{"title":"this is a title"}},{"template":{"title":"this is a title"}},{"template":{"title":"this is a title"}},{"template":{"title":"some title"}},{"template":{"title":"some title"}},{"template":{"title":"some title"}},{"template":{"title":"some title"}}]

i want this array to be like

[{'title': 'some title'}, {'title': 'some other title'}, ...]

so basically i don't want the template property inside the js response. i'm getting this from the following rails code

@templates = Template.find_all_by_user_id(current_user.id, :select=>'title', :conditions=>"title is not null")

@templates.to_json is what gives me this array of json objects

any suggestions?

tokland · Accepted Answer · 2011-10-18 17:15:30Z

1

Check: http://apidock.com/rails/ActiveRecord/Serialization/to_json

Template.include_root_in_json = false

answered Oct 18, 2011 at 17:15

tokland

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rdvdijk · Accepted Answer · 2011-10-18 15:55:26Z

0

I think that in this case, you could do with just collecting the attributes of your entire collection of Templates:

@templates = Template.find_all_by_user_id(current_user.id, :select=>'title', :conditions=>"title is not null").collect(&:attributes)

(Scroll to the right to see the added .collect(&:attributes) at the end of the line.)

answered Oct 18, 2011 at 15:55

rdvdijk

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