/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/Model/postgisdb.py
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revision 1625 by bh, Thu Aug 21 16:02:23 2003 UTC revision 1638 by bh, Fri Aug 22 18:19:14 2003 UTC
# Line 28  def has_postgis_support(): Line 28  def has_postgis_support():
28      """      """
29      return psycopg is not None      return psycopg is not None
30    
31    def psycopg_version():
32        return psycopg.__version__
33    
34  if psycopg is not None:  if psycopg is not None:
35      type_map = [(psycopg.STRING, table.FIELDTYPE_STRING),      type_map = [(psycopg.STRING, table.FIELDTYPE_STRING),
36                  (psycopg.INTEGER, table.FIELDTYPE_INT),                  (psycopg.INTEGER, table.FIELDTYPE_INT),
37                  (psycopg.FLOAT, table.FIELDTYPE_DOUBLE)]                  (psycopg.FLOAT, table.FIELDTYPE_DOUBLE)]
38    
39    
40    class ConnectionError(Exception):
41    
42        """Class for exceptions occurring when establishing a Databse connection"""
43    
44    
45  class PostGISConnection:  class PostGISConnection:
46    
47      """Represent a PostGIS database      """Represent a PostGIS database
# Line 64  class PostGISConnection: Line 73  class PostGISConnection:
73              val = getattr(self, name)              val = getattr(self, name)
74              if val:              if val:
75                  params.append("%s=%s" % (name, val))                  params.append("%s=%s" % (name, val))
76          self.connection = psycopg.connect(" ".join(params))          try:
77                self.connection = psycopg.connect(" ".join(params))
78            except psycopg.OperationalError, val:
79                raise ConnectionError(str(val))
80    
81          # determine the OID for the geometry type. This is PostGIS          # determine the OID for the geometry type. This is PostGIS
82          # specific.          # specific.
# Line 160  class PostGISTable: Line 172  class PostGISTable:
172                             % (", ".join([col.name for col in self.columns]),                             % (", ".join([col.name for col in self.columns]),
173                                self.tablename))                                self.tablename))
174    
175        def DBConnection(self):
176            """Return the dbconnection used by the table"""
177            return self.db
178    
179        def TableName(self):
180            """Return the name of the table in the database"""
181            return self.tablename
182    
183      def Dependencies(self):      def Dependencies(self):
184          """Return an empty tuple because a PostGISTable depends on nothing else          """Return an empty tuple because a PostGISTable depends on nothing else
185          """          """
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