ogrLayerName_method.py

def ogrLayerName(uri):
    """ Returns layer name suitable for Gdal/OGR commands
    """
    fields = uri.split('|')
    ogruri = fields[0]
    fields = fields[1:]
    layerid = 0
    for f in fields:
        if f.startswith('layername='):
            # Name encoded in uri, nothing more needed
            return f.split('=')[1]
        if f.startswith('layerid='):
            layerid = int(f.split('=')[1])
            # Last layerid= takes precedence, to allow of layername to
            # take precedence
    ds = ogr.Open(ogruri)
    if not ds:
        if 'host=' in uri:
            regex = re.compile('(table=")(.+?)(\.)(.+?)"')
            r = regex.search(uri)
            return '"' + r.groups()[1] + '.' + r.groups()[3] + '"'
        elif 'dbname=' in uri:
            regex = re.compile('(table=")(.+?)"')
            r = regex.search(uri)
            return r.groups()[1]
        elif re.match('^(multi)?(point|linestring|polygon)(25d|(z?m?))?(\?|$)', uri, re.I):
            return 'memory_layer'
        elif os.path.isfile(uri):
            return os.path.basename(os.path.splitext(uri)[0])
        return "invalid-uri"

    ly = ds.GetLayer(layerid)
    if not ly:
        return "invalid-layerid"
    name = ly.GetName()
    return name