Class: Og::Entity

Inherits:
Object show all
Includes:
EntityMixin
Defined in:
lib/og/entity.rb

Overview

An Og Managed class. Also contains helper methods.

Class Method Summary collapse

Methods included from EntityMixin

#assign_properties, #delete, #insert, #og_quote, #reload, #save, #saved?, #transaction, #update, #update_by_sql, #update_properties

Class Method Details

.entity_from_string(str) ⇒ Object

Converts a string into it’s corresponding class. Added to support STI. Ex: x = “Dave” becomes: (x.class.name == Dave) == true. Returns nil if there’s no such class. – gmosx: investigate this patch! ++



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# File 'lib/og/entity.rb', line 420

def entity_from_string(str)
  res = nil
  Og.manager.managed_classes.each do |klass|
    if klass.name == str
      res = klass
      break
    end
  end
  res
end

.resolve_primary_key(klass) ⇒ Object 



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# File 'lib/og/entity.rb', line 393

def resolve_primary_key(klass)
  # Is the class annotated with a primary key?

  if pk = klass.ann.self[:primary_key]
    return pk
  end

  # Search the properties, try to find one annotated as primary_key.

  for p in klass.properties.values
    if p.primary_key
      return Property.new(:symbol => p.symbol, :klass => p.klass)
    end
  end

  # The default primary key is oid.

  return Property.new(:symbol => :oid, :klass => Fixnum)
end