# File lib/post_gis_adapter.rb, line 282
282:       def initialize(base = nil, name = nil, type=nil, limit=nil, default=nil,null=nil,srid=-1,with_z=false,with_m=false)
283:         super(base, name, type, limit, default,null)
284:         @spatial=true
285:         @srid=srid
286:         @with_z=with_z
287:         @with_m=with_m
288:       end

     # File lib/post_gis_adapter.rb, line 290
290:       def to_sql(table_name)
291:         if @spatial
292:           type_sql = type_to_sql(type.to_sym)
293:           type_sql += "M" if with_m and !with_z
294:           if with_m and with_z
295:             dimension = 4 
296:           elsif with_m or with_z
297:             dimension = 3
298:           else
299:             dimension = 2
300:           end
301:           
302:           column_sql = "SELECT AddGeometryColumn('#{table_name}','#{name}',#{srid},'#{type_sql}',#{dimension})"
303:           column_sql += ";ALTER TABLE #{table_name} ALTER #{name} SET NOT NULL" if null == false
304:           column_sql
305:         else
306:           super
307:         end
308:       end