front and back-end web development, Leeds, UK
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JSON Data for multiple objects and associations in Rails
Submitted by Richard on Tue, 10/20/2009 - 08:58I am creating a REST API in Rails which outputs JSON data. In some cases I need multiple objects to be pushed out in the data, which is fine until you need to use associations in the mix also.
Example:
form = Form.find(params[:id]) products = Product.all
I am needing these objects plus the child (has_many) form elements of the form object. So I tried:
render :json => [form.to_json(:include=>:form_elements), products]
But the double JSON parsing of the form object created unwanted slashed in the data. I have used the following hack...
render :json => [ActiveSupport::JSON.decode(form.to_json(:include=>:form_elements)), products]
So I decode the JSON data before sending it to the renderer. But if someone knows how to do this in a less hack-ish way then please let me know!
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