vendor/plugins/spatial_adapter/lib/spatial_adapter/schema_dumper.rb
# These are the valid options for a column specification (spatial options added)
These are the valid options for a column specification (spatial options added)
These are the valid options for a column specification ( spatial options added )
def table(table, stream)
    columns = @connection.columns(table)
    begin
      tbl = StringIO.new
      if @connection.respond_to?(:pk_and_sequence_for)
        pk, pk_seq = @connection.pk_and_sequence_for(table)
      elsif @connection.respond_to?(:primary_key)
        pk = @connection.primary_key(table)
      end
      tbl.print "  create_table #{table.inspect}"
      if columns.detect { |c| c.name == pk }
        if pk != 'id'
          tbl.print %Q(, :primary_key => "#{pk}")
        end
      else
        tbl.print ", :id => false"
      end
      if @connection.respond_to?(:options_for)
        res = @connection.options_for(table)
        tbl.print ", :options=>'#{res}'" if res
      end
      tbl.print ", :force => true"
      tbl.puts " do |t|"
      column_specs = columns.map do |column|
        raise StandardError, "Unknown type '#{column.sql_type}' for column '#{column.name}'" if @types[column.type].nil?
        next if column.name == pk
        spec = column_spec(column)
        (spec.keys - [:name, :type]).each{ |k| spec[k].insert(0, "#{k.inspect} => ")}
        spec
      end.compact
      keys = VALID_COLUMN_SPEC_KEYS & column_specs.map(&:keys).flatten
      lengths = keys.map{ |key| column_specs.map{ |spec| spec[key] ? spec[key].length + 2 : 0 }.max }
      format_string = lengths.map{ |len| "%-#{len}s" }
      type_length = column_specs.map{ |column| column[:type].length }.max
      format_string.unshift "    t.%-#{type_length}s "
      format_string *= ''
      column_specs.each do |colspec|
        values = keys.zip(lengths).map{ |key, len| colspec.key?(key) ? colspec[key] + ", " : " " * len }
        values.unshift colspec[:type]
        tbl.print((format_string % values).gsub(/,\s*$/, ''))
        tbl.puts
      end
      tbl.puts "  end"
      tbl.puts
      indexes(table, tbl)
      tbl.rewind
      stream.print tbl.read
    rescue => e
      stream.puts "# Could not dump table #{table.inspect} because of following #{e.class}"
      stream.puts "#   #{e.message}"
      stream.puts
    end
    stream
  end
def table ( table , stream ) columns = @connection . columns ( table ) begin tbl = StringIO . new if @connection . respond_to? ( :pk_and_sequence_for ) pk , pk_seq = @connection . pk_and_sequence_for ( table ) elsif @connection . respond_to? ( :primary_key ) pk = @connection . primary_key ( table ) end tbl . print "  create_table #{table.inspect}" if columns . detect { | c | c . name == pk } if pk != 'id' tbl . print %Q(, :primary_key => "#{pk}") end else tbl . print ", :id => false" end if @connection . respond_to? ( :options_for ) res = @connection . options_for ( table ) tbl . print ", :options=>'#{res}'" if res end tbl . print ", :force => true" tbl . puts " do |t|" column_specs = columns . map do | column | raise StandardError , "Unknown type '#{column.sql_type}' for column '#{column.name}'" if @types [ column . type ] . nil? next if column . name == pk spec = column_spec ( column ) ( spec . keys - [ :name , :type ] ) . each { | k | spec [ k ] . insert ( 0 , "#{k.inspect} => " ) } spec end . compact keys = VALID_COLUMN_SPEC_KEYS & column_specs . map ( & :keys ) . flatten lengths = keys . map { | key | column_specs . map { | spec | spec [ key ] ? spec [ key ] . length + 2 : 0 } . max } format_string = lengths . map { | len | "%-#{len}s" } type_length = column_specs . map { | column | column [ :type ] . length } . max format_string . unshift "    t.%-#{type_length}s " format_string *= '' column_specs . each do | colspec | values = keys . zip ( lengths ) . map { | key , len | colspec . key? ( key ) ? colspec [ key ] + ", " : " " * len } values . unshift colspec [ :type ] tbl . print ( ( format_string % values ) . gsub ( / , \s *$ / , '' ) ) tbl . puts end tbl . puts "  end" tbl . puts indexes ( table , tbl ) tbl . rewind stream . print tbl . read rescue => e stream . puts "# Could not dump table #{table.inspect} because of following #{e.class}" stream . puts "#   #{e.message}" stream . puts end stream end
These are the valid options for a column specification (spatial options added)
These are the valid options for a column specification ( spatial options added )
# first dump primary key column # Added by Spatial Adapter to ensure correct MySQL table engine # then dump all non-primary key columns # find all migration keys used in this table # figure out the lengths for each column based on above keys # the string we're going to sprintf our values against, with standardized column widths # find the max length for the 'type' column, which is special # add column type definition to our format string
table
stream