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99ccfd73cb
Some people override warn in their applications. Using an explicit receiver protects against this. [Fixes #791]
49 lines
1.5 KiB
Ruby
49 lines
1.5 KiB
Ruby
require "rails/generators"
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require "rails/generators/active_record"
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module PaperTrail
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# Installs PaperTrail in a rails app.
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class InstallGenerator < ::Rails::Generators::Base
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include ::Rails::Generators::Migration
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source_root File.expand_path("../templates", __FILE__)
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class_option(
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:with_changes,
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type: :boolean,
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default: false,
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desc: "Store changeset (diff) with each version"
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)
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class_option(
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:with_associations,
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type: :boolean,
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default: false,
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desc: "Store transactional IDs to support association restoration"
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)
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desc "Generates (but does not run) a migration to add a versions table."
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def create_migration_file
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add_paper_trail_migration("create_versions")
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add_paper_trail_migration("add_object_changes_to_versions") if options.with_changes?
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if options.with_associations?
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add_paper_trail_migration("create_version_associations")
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add_paper_trail_migration("add_transaction_id_column_to_versions")
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end
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end
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def self.next_migration_number(dirname)
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::ActiveRecord::Generators::Base.next_migration_number(dirname)
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end
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protected
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def add_paper_trail_migration(template)
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migration_dir = File.expand_path("db/migrate")
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if self.class.migration_exists?(migration_dir, template)
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::Kernel.warn "Migration already exists: #{template}"
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else
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migration_template "#{template}.rb", "db/migrate/#{template}.rb"
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end
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end
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end
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end
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