Module: EmptyEye::BaseMethods::ClassMethods

Defined in:
lib/empty_eye/base_methods.rb

Instance Method Summary collapse

Instance Method Details

#descends_from_active_record? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/empty_eye/base_methods.rb', line 50

def descends_from_active_record?
  if superclass.abstract_class?
    superclass.descends_from_active_record?
  elsif mti_class?
    superclass == ActiveRecord::Base
  else
    superclass == ActiveRecord::Base || !columns_hash.include?(inheritance_column)
  end
end

#finder_needs_type_condition? ⇒ Boolean

we dont need no freakin’ type condition the view handles this

Returns:

  • (Boolean) 


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# File 'lib/empty_eye/base_methods.rb', line 41

def finder_needs_type_condition?
  !mti_class? and super
end

#mti_class(primary_table = nil) {|nil| ... } ⇒ Object

interface for building mti_class primary table is not necessary if the table named correctly (Bar => bars_core) OR if the class inherits a primary table simply wrap your greasy associations in this block

Yields:

  • (nil)

Raises:



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# File 'lib/empty_eye/base_methods.rb', line 19

def mti_class(primary_table = nil)
  raise(EmptyEye::AlreadyExtended, "MTI class method already invoked") if mti_class?
  self.primary_key = "id"
  @shard_wrangler = EmptyEye::ShardWrangler.create(self, primary_table)
  self.table_name = @shard_wrangler.compute_view_name
  before_yield = reflect_on_multiple_associations(:has_one)
  yield nil if block_given?
  mti_ancestors = reflect_on_multiple_associations(:has_one) - before_yield
  @shard_wrangler.wrangle_shards(mti_ancestors)
  true
end

#mti_class? ⇒ Boolean

am i a mti class? easier than making a new class type … i tried

Returns:

  • (Boolean) 


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# File 'lib/empty_eye/base_methods.rb', line 11

def mti_class?
  !!@shard_wrangler
end

#reflect_on_multiple_associations(*assoc_types) ⇒ Object

we need this when we add new associaton types to extend with we could use the baked in version for now



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# File 'lib/empty_eye/base_methods.rb', line 33

def reflect_on_multiple_associations(*assoc_types)
  assoc_types.collect do |assoc_type| 
    reflect_on_all_associations(assoc_type)
  end.flatten.uniq
end

#shard_wrangler ⇒ Object

the class of primary shard



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# File 'lib/empty_eye/base_methods.rb', line 46

def shard_wrangler
  @shard_wrangler
end