Contents

module RedHillConsulting::Core::ActiveRecord
  module SchemaDumper
    def self.included(base)
      base.class_eval do
        private
        alias_method_chain :tables, :redhillonrails_core
        alias_method_chain :indexes, :redhillonrails_core
      end
    end

    private

    def tables_with_redhillonrails_core(stream)
      @foreign_keys = StringIO.new
      begin
        tables_without_redhillonrails_core(stream)
        @foreign_keys.rewind
        stream.print @foreign_keys.read
        views(stream)
      ensure
        @foreign_keys = nil
      end
    end

    def indexes_with_redhillonrails_core(table, stream)
      indexes = @connection.indexes(table)
      indexes.each do |index|
        if index.expression.blank? then
          stream.print "  add_index #{index.table.inspect}, #{index.columns.inspect}, :name => #{index.name.inspect}"
          stream.print ", :unique => true" if index.unique
          stream.print ", :case_sensitive => false" unless index.case_sensitive?
          stream.print ", :conditions => #{index.conditions.inspect}" unless index.conditions.blank?
        else
          stream.print "  add_index #{index.table.inspect}"
          stream.print ", :expression => #{index.expression.inspect}"
          stream.print ", :name => #{index.name.inspect}"
        end

        stream.puts
      end
      stream.puts unless indexes.empty?

      foreign_keys(table, @foreign_keys)
    end

    def foreign_keys(table, stream)
      foreign_keys = @connection.foreign_keys(table)
      foreign_keys.each do |foreign_key|
        stream.print "  "
        stream.print foreign_key.to_dump
        stream.puts
      end
      stream.puts unless foreign_keys.empty?
    end
    
    def views(stream)
      views = @connection.views
      views.each do |view_name|
        definition = @connection.view_definition(view_name)
        stream.print "  create_view #{view_name.inspect}, #{definition.inspect}"
        stream.puts
      end
      stream.puts unless views.empty?
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
redhillonrails_core-1.0.9.1	lib/red_hill_consulting/core/active_record/schema_dumper.rb
redhillonrails_core-1.0.9	lib/red_hill_consulting/core/active_record/schema_dumper.rb
redhillonrails_core-1.0.8	lib/red_hill_consulting/core/active_record/schema_dumper.rb