Class: ActiveScaffold::Tableless

Inherits:
ActiveRecord::Base show all
Defined in:
lib/active_scaffold/tableless.rb

Defined Under Namespace

Classes: Relation

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ActiveRecord::Base

#associated_valid?, #no_errors_in_associated?, #save_associated, #save_associated!, #save_with_unsaved_flag, #to_label, #unsaved=, #unsaved?

Class Method Details

.column(name, sql_type = nil, options = {}) ⇒ Object 



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# File 'lib/active_scaffold/tableless.rb', line 58

def self.column(name, sql_type = nil, options = {})
  column = ActiveRecord::ConnectionAdapters::Column.new(name.to_s, options[:default], sql_type.to_s, options.has_key?(:null) ? options[:null] : true)
  column.tap { columns << column }
end

.columns ⇒ Object 



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# File 'lib/active_scaffold/tableless.rb', line 47

def self.columns; @columns ||= []; end

.execute_simple_calculation(relation, operation, column_name, distinct) ⇒ Object 



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# File 'lib/active_scaffold/tableless.rb', line 71

def self.execute_simple_calculation(relation, operation, column_name, distinct)
  if operation == 'count' && [relation.klass.primary_key, :all].include?(column_name)
    find_all(relation).size
  else
    raise "self.execute_simple_calculation must be implemented in a Tableless model to support #{operation} #{column_name}#{' distinct' if distinct} columns"
  end
end

.find_all(relation) ⇒ Object 



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# File 'lib/active_scaffold/tableless.rb', line 63

def self.find_all(relation)
  raise 'self.find_all must be implemented in a Tableless model'
end

.find_one(id, relation) ⇒ Object 



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# File 'lib/active_scaffold/tableless.rb', line 67

def self.find_one(id, relation)
  raise 'self.find_one must be implemented in a Tableless model'
end

.table_exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_scaffold/tableless.rb', line 49

def self.table_exists?; true; end

.table_name ⇒ Object 



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# File 'lib/active_scaffold/tableless.rb', line 48

def self.table_name; @table_name ||= ActiveModel::Naming.plural(self); end

Instance Method Details

#create ⇒ Object

:nodoc:



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# File 'lib/active_scaffold/tableless.rb', line 83

def create #:nodoc:
  run_callbacks(:create) {}
end

#destroy ⇒ Object 



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# File 'lib/active_scaffold/tableless.rb', line 79

def destroy
  raise 'destroy must be implemented in a Tableless model'
end

#update ⇒ Object

:nodoc:



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# File 'lib/active_scaffold/tableless.rb', line 87

def update(*) #:nodoc:
  run_callbacks(:update) {}
end