Class: Rails::Generators::ActiveModel

Inherits:
Object
  • Object
show all
Defined in:
railties/lib/rails/generators/active_model.rb

Overview

ActiveModel is a class to be implemented by each ORM to allow Rails to generate customized controller code.

The API has the same methods as ActiveRecord, but each method returns a string that matches the ORM API.

For example:

ActiveRecord::Generators::ActiveModel.find(Foo, "params[:id]")
# => "Foo.find(params[:id])"

DataMapper::Generators::ActiveModel.find(Foo, "params[:id]")
# => "Foo.get(params[:id])"

On initialization, the ActiveModel accepts the instance name that will receive the calls:

builder = ActiveRecord::Generators::ActiveModel.new "@foo"
builder.save # => "@foo.save"

The only exception in ActiveModel for ActiveRecord is the use of self.build instead of self.new.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name) ⇒ ActiveModel

Returns a new instance of ActiveModel.



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# File 'railties/lib/rails/generators/active_model.rb', line 31

def initialize(name)
  @name = name
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'railties/lib/rails/generators/active_model.rb', line 29

def name
  @name
end

Class Method Details

.all(klass) ⇒ Object

Used for:

  • GET index



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# File 'railties/lib/rails/generators/active_model.rb', line 38

def self.all(klass)
  "#{klass}.all"
end

.build(klass, params = nil) ⇒ Object

Used for:

  • GET new

  • POST create



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# File 'railties/lib/rails/generators/active_model.rb', line 56

def self.build(klass, params = nil)
  if params
    "#{klass}.new(#{params})"
  else
    "#{klass}.new"
  end
end

.find(klass, params = nil) ⇒ Object

Used for:

  • GET show

  • GET edit

  • PATCH / PUT update

  • DELETE destroy



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# File 'railties/lib/rails/generators/active_model.rb', line 48

def self.find(klass, params = nil)
  "#{klass}.find(#{params})"
end

Instance Method Details

#destroy ⇒ Object

Used for:

  • DELETE destroy



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# File 'railties/lib/rails/generators/active_model.rb', line 89

def destroy
  "#{name}.destroy!"
end

#errors ⇒ Object

Used for:

  • POST create

  • PATCH / PUT update



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# File 'railties/lib/rails/generators/active_model.rb', line 82

def errors
  "#{name}.errors"
end

#save ⇒ Object

Used for:

  • POST create



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# File 'railties/lib/rails/generators/active_model.rb', line 67

def save
  "#{name}.save"
end

#update(params = nil) ⇒ Object

Used for:

  • PATCH / PUT update



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# File 'railties/lib/rails/generators/active_model.rb', line 74

def update(params = nil)
  "#{name}.update(#{params})"
end