Module: HasData::ClassMethods

Defined in:
lib/daily/has_data.rb

Instance Method Summary collapse

Instance Method Details

#has_data(field) ⇒ Object



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# File 'lib/daily/has_data.rb', line 13

def has_data field
  attribute = "#{field}_data"
  method = "#{field}_json"
  valid = "#{field}_json_check"
  
  serialize attribute, Hash
  
  define_method method do
    val = instance_variable_get("@#{method}")
    return val if val
    data = send(attribute)
    return nil if data.blank?
    JSON.pretty_generate(data)
  end
  define_method "#{method}=" do |val|
     instance_variable_set("@#{method}", val)
     send("#{attribute}=", nil)
     return if val.blank?
     begin
       send("#{attribute}=", JSON.parse(val))
     rescue
       
     end
   end
   
   define_method valid do
     val = instance_variable_get("@#{method}")
     return if val.blank?
     begin
       JSON.parse(val)
     rescue => ex
       self.errors.add(method.to_sym, ex.message)
     end
   end
   validate valid
end