Class: MigrationGenerator

Inherits:
Genosaurus
  • Object
show all
Defined in:
lib/mack-data_mapper/migration_generator/migration_generator.rb

Overview

This will generate a migration for your application.

Example without columns:

rake generate:migration name=create_users

db/migrations/<number>_create_users.rb:

migration <number>, :create_users do
  up do
  end

  down do
  end
end

Example with columns:

rake generate:migration name=create_users cols=username:string,email_address:string,created_at:date_time,updated_at:date_time

db/migrations/<number>_create_users.rb:

migration <number>, :create_users do
  up do
    create_table :users do
      column :id, Integer, :serial => true
      column :username, String, :size => 50
      column :email, String, :size => 50
      column :created_at, DateTime
      column :updated_at, DateTime
    end
  end

  down do
    drop_table :users
  end
end

Instance Method Summary collapse

Instance Method Details

#get_column_type(column) ⇒ Object

:nodoc:



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# File 'lib/mack-data_mapper/migration_generator/migration_generator.rb', line 48

def get_column_type(column) # :nodoc:
  column.column_type.camelcase
end

#migration_columns ⇒ Object

:nodoc:



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# File 'lib/mack-data_mapper/migration_generator/migration_generator.rb', line 44

def migration_columns # :nodoc:
  [Mack::Genosaurus::Orm::ModelColumn.new(param(:name), "id:serial"), columns].flatten
end

#setup ⇒ Object

:nodoc:



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# File 'lib/mack-data_mapper/migration_generator/migration_generator.rb', line 38

def setup # :nodoc:
  @table_name = param(:name).underscore.gsub("create_", "")
  @current_migration_number = next_migration_number
  @migration_name = "#{@current_migration_number}_#{param(:name).underscore}"
end