Module: MassiveRecord::ORM::Schema::TableInterface::ClassMethods

Defined in:
lib/massive_record/orm/schema/table_interface.rb

Instance Method Summary collapse

Instance Method Details

#add_field_to_column_family(family_name, *field_args) ⇒ Object

If you need to add fields to a column family dynamically, use this method. It wraps functionality needed to keep the class in a consistent state. There is also an instance method defined which will inject default value to the object itself after defining the field.



41
42
43
44
45
46
47
48
49
50
 
# File 'lib/massive_record/orm/schema/table_interface.rb', line 41

def add_field_to_column_family(family_name, *field_args)
  ensure_column_families_exists

  field = Field.new_with_arguments_from_dsl(*field_args)
  column_families.family_by_name_or_new(family_name) << field

  undefine_attribute_methods if respond_to? :undefine_attribute_methods

  field
end

#autoload_column_families_and_fields_with(column_names) ⇒ Object

Create column families and fields with incomming array of column names. It should be on a unique and complete form like [“info:name”, “info:phone”]



56
57
58
59
60
61
62
63
64
 
# File 'lib/massive_record/orm/schema/table_interface.rb', line 56

def autoload_column_families_and_fields_with(column_names)
  column_names.each do |column_family_and_column_name|
    family_name, column_name = column_family_and_column_name.split(":")
    
    if family = column_families.family_by_name(family_name) and family.autoload_fields?
      family.add? Field.new(:name => column_name)
    end
  end
end

#column_family(name, &block) ⇒ Object

DSL method exposed into class. Makes it possible to do:

class Person < MassiveRecord::ORM::Table

column_family :info do
  field :name
  field :age, :integer, :default => 0
  field :points, :integer, :column => :number_of_points
end

end



30
31
32
33
 
# File 'lib/massive_record/orm/schema/table_interface.rb', line 30

def column_family(name, &block)
  ensure_column_families_exists
  column_families.family_by_name_or_new(name).instance_eval(&block)
end