Module: ErpTechSvcs::Extensions::ActiveRecord::HasRelationalDynamicAttributes::InstanceMethods

Defined in:
lib/erp_tech_svcs/extensions/active_record/has_relational_dynamic_attributes.rb

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(m, *args, &block) ⇒ Object 



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# File 'lib/erp_tech_svcs/extensions/active_record/has_relational_dynamic_attributes.rb', line 118

def method_missing(m, *args, &block)
  value = get_dynamic_value_of_type(m.to_s)
  (value.nil?) ? super : (return value)
end

Instance Method Details

#add_dynamic_attribute(value, type, data_type) ⇒ Object 



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# File 'lib/erp_tech_svcs/extensions/active_record/has_relational_dynamic_attributes.rb', line 111

def add_dynamic_attribute(value, type, data_type)
  attribute_type = AttributeType.where('description = ? or internal_identifier = ?', type, type).first
  attribute_type = AttributeType.create(:description => type, :data_type => data_type) unless attribute_type
  attribute_value = AttributeValue.create(:value => value, :attribute_type => attribute_type)
  self.attribute_values << attribute_value
end

#assign_dynamic_attribute_on_save ⇒ Object 



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# File 'lib/erp_tech_svcs/extensions/active_record/has_relational_dynamic_attributes.rb', line 99

def assign_dynamic_attribute_on_save
  #template method overridden in implementing class
end

#destroy_dynamic_attribute_of_type(attribute_type_iid) ⇒ Object 



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# File 'lib/erp_tech_svcs/extensions/active_record/has_relational_dynamic_attributes.rb', line 107

def destroy_dynamic_attribute_of_type (attribute_type_iid)
  self.attribute_values.includes(:attribute_type).destroy_all("attribute_types.internal_identifier = #{attribute_type_iid.to_s} or attribute_types.description = #{attribute_type_iid.to_s}")
end

#get_dynamic_attribute_of_type(attribute_type_iid) ⇒ Object 



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# File 'lib/erp_tech_svcs/extensions/active_record/has_relational_dynamic_attributes.rb', line 94

def get_dynamic_attribute_of_type(attribute_type_iid)
  attribute_value = self.attribute_values.includes(:attribute_type).where('attribute_types.internal_identifier = ? or attribute_types.description = ?', attribute_type_iid.to_s, attribute_type_iid.to_s).first
  attribute_value.nil? ? nil : attribute_value
end

#get_dynamic_attributes ⇒ Object 



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# File 'lib/erp_tech_svcs/extensions/active_record/has_relational_dynamic_attributes.rb', line 81

def get_dynamic_attributes
  {}.tap do |hash|
    self.attribute_values.each do |value|
      hash[value.attribute_type.description] = value.value
    end
  end
end

#get_dynamic_value_of_type(attribute_type_iid) ⇒ Object 



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# File 'lib/erp_tech_svcs/extensions/active_record/has_relational_dynamic_attributes.rb', line 89

def get_dynamic_value_of_type(attribute_type_iid)
  attribute_value = get_dynamic_attribute_of_type(attribute_type_iid)
  attribute_value.nil? ? nil : attribute_value.value
end

#has_dynamic_attribute_of_type?(attribute_type_iid) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/erp_tech_svcs/extensions/active_record/has_relational_dynamic_attributes.rb', line 103

def has_dynamic_attribute_of_type? (attribute_type_iid)
  !self.attribute_values.includes(:attribute_type).where('attribute_types.internal_identifier = ? or attribute_types.description = ?', attribute_type_iid.to_s, attribute_type_iid.to_s).first.nil?
end

#update_first_dynamic_attribute_value_of_type(value, type) ⇒ Object 



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# File 'lib/erp_tech_svcs/extensions/active_record/has_relational_dynamic_attributes.rb', line 74

def update_first_dynamic_attribute_value_of_type(value, type)
  attribute_type = AttributeType.where('description = ? or internal_identifier = ?', type, type).first
  attribute_value = self.attribute_values.where(:attribute_type_id => attribute_type.id).first
  attribute_value.value = value
  attribute_value.save!
end

#update_or_create_dynamic_attribute(value, type, data_type) ⇒ Object 



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# File 'lib/erp_tech_svcs/extensions/active_record/has_relational_dynamic_attributes.rb', line 66

def update_or_create_dynamic_attribute(value, type, data_type)
  if self.has_dynamic_attribute_of_type?(type)
    update_first_dynamic_attribute_value_of_type(value, type)
  else
    add_dynamic_attribute(value, type, data_type)
  end
end