Class: Mv::Core::Services::SayConstraintsDiff

Inherits:
Object
  • Object
show all
Defined in:
lib/mv/core/services/say_constraints_diff.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(old_constraint, new_constraint) ⇒ SayConstraintsDiff

Returns a new instance of SayConstraintsDiff.



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# File 'lib/mv/core/services/say_constraints_diff.rb', line 11

def initialize(old_constraint, new_constraint)
  @old_constraint = old_constraint   
  @new_constraint = new_constraint
end

Instance Attribute Details

#new_constraint ⇒ Object (readonly)

Returns the value of attribute new_constraint.



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# File 'lib/mv/core/services/say_constraints_diff.rb', line 9

def new_constraint
  @new_constraint
end

#old_constraint ⇒ Object (readonly)

Returns the value of attribute old_constraint.



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# File 'lib/mv/core/services/say_constraints_diff.rb', line 9

def old_constraint
  @old_constraint
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/mv/core/services/say_constraints_diff.rb', line 16

def execute
  ::ActiveRecord::Migration.say_with_time("#{constraint_operation} #{constraint_presenter} on table \"#{table_name}\"") do
    comparison[:deleted].each do |validation|
      say("delete #{validation_presenter(validation)}")
    end if comparison[:deleted]

    comparison[:added].each do |validation|
      say("create #{validation_presenter(validation)}")
    end if comparison[:added]

    yield
  end unless comparison.blank?
end