Module: Extjsizable::ActiveRecord::ExtJs

Extended by:
ActiveSupport::Concern
Defined in:
lib/extjsizable/active_record/extjs.rb

Instance Method Summary collapse

Instance Method Details

#to_extjs(options = {}) ⇒ Object 



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# File 'lib/extjsizable/active_record/extjs.rb', line 12

def to_extjs(options = {})
  success = options.delete(:success)
  underscored_class_name = self.class.to_s.demodulize.underscore

  if success || (success.nil? && errors.empty?)
    # returns success/data to load a form:
    # {
    #   "data": {
    #     "id": 1,
    #     "title": "First Post",
    #     "body": "This is my first post.",
    #     "published": true, ...
    #    },
    #    "success": true
    # }
    #
    # If ActiveRecord::Base.include_root_in_json is true then, the model name is used instead of data key:
    # {
    #   "post": {
    #     "id": 1,
    #     "title": "First Post",
    #     "body": "This is my first post.",
    #     "published": true, ...
    #    },
    #    "success": true
    # }
    # If ActiveRecord::Base.wrap_with_brackets is true then, the model name is prefixed into data key and all keys are surrounded with brackets:
    # {
    #   "data": {
    #     "post[id]": 1,
    #     "post[title]": "First Post",
    #     "post[body]": "This is my first post.",
    #     "post[published]": true, ...
    #    },
    #    "success": true
    # }

    h_json_data = self.as_json(options)
    h_json_data = { :data => h_json_data } unless ::ActiveRecord::Base.include_root_in_json?
    h_json_data[h_json_data.keys.first] = wrap_hash_with_brackets(h_json_data.values.first, underscored_class_name) if ::ActiveRecord::Base.wrap_with_brackets?

    { :success => true }.merge(h_json_data)
  else
    # retrieves no-success/errors to the form:
    # {
    #   "errors": { "title": "Title can't be blank", ... },
    #   "success": false
    # }

    h_json_data = errors.as_json(options)
    h_json_data = wrap_hash_with_brackets(h_json_data, underscored_class_name) if ::ActiveRecord::Base.wrap_with_brackets?
    { :success => false, :errors => h_json_data.with_indifferent_access }
  end.with_indifferent_access

end

#wrap_hash_with_brackets(h, model_name) ⇒ Object

Wrap with brackets so that => {:b => :c } becomes to { ‘model’ : : ‘c’ }



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# File 'lib/extjsizable/active_record/extjs.rb', line 69

def wrap_hash_with_brackets(h, model_name)
  h.reduce({}) do |nh, (k, v)|
    nh["#{model_name.to_s}[#{k.to_s}]"] = v
    nh
  end
end