Mercurial > dive4elements > river
view backend/contrib/shpimporter/utils.py @ 8443:df65f24af5bc
(issue1762) Use getValue to obtain dateRange values
The getToValue was always the initial value regardless
of what has been entered in the form.
According to the documentation both getToValue and getFromValue
should return the "initial value" of the form field. But wether
this means the value before validation corrections or the value
the field is initialized with (which is also not true in both
cases as the field is set only after creation) It returned
the real value for the from date but not for the to date.
With an explicit getValue we workaround this issue.
author | Andre Heinecke <andre.heinecke@intevation.de> |
---|---|
date | Wed, 22 Oct 2014 17:33:43 +0200 |
parents | 5aa05a7a34b7 |
children |
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import os import sys import logging try: from osgeo import ogr except ImportError: import ogr logger = logging.getLogger("utils") SHP='.shp' SQL_SELECT_RIVER_ID="SELECT id FROM rivers WHERE name = %s" SQL_SELECT_RIVER_ID_ORA="SELECT id FROM rivers WHERE name = :s" def findShapefiles(path): shapes = [] for root, dirs, files in os.walk(path): if len(files) == 0: continue logger.debug("Processing directory '%s' with %i files " % (root, len(files))) for f in files: idx = f.find(SHP) if (idx+len(SHP)) == len(f): shapes.append((f.replace(SHP, ''), root + "/" + f)) return shapes def getRiverId(dbconn, name, oracle): """ Returns the id of the river "name" Dbconn must be a python database connection api compliant object """ cur = dbconn.cursor() if oracle: # This is stupid and shoudl not be neccessary. But I don't # know how to make it work both ways. aheinecke - 02/2013 stmt = SQL_SELECT_RIVER_ID_ORA else: stmt = SQL_SELECT_RIVER_ID cur.execute(stmt, (getUTF8(name),)) row = cur.fetchone() if row: return row[0] else: return 0 def getUTF8(string): """ Tries to convert the string to a UTF-8 encoding by first checking if it is UTF-8 and then trying cp1252 """ try: return unicode.encode(unicode(string, "UTF-8"), "UTF-8") except UnicodeDecodeError: # Probably European Windows names so lets try again return unicode.encode(unicode(string, "cp1252"), "UTF-8") def getUTF8Path(path): """ Tries to convert path to utf-8 by first checking the filesystemencoding and trying the default windows encoding afterwards. Returns a valid UTF-8 encoded unicode object or throws a UnicodeDecodeError """ try: return unicode.encode(unicode(path, sys.getfilesystemencoding()), "UTF-8") except UnicodeDecodeError: # Probably European Windows names so lets try again return unicode.encode(unicode(path, "cp1252"), "UTF-8") WKB_MAP = { ogr.wkb25Bit : 'wkb25Bit', ogr.wkbGeometryCollection : 'wkbGeometryCollection', ogr.wkbGeometryCollection25D :'wkbGeometryCollection25D', ogr.wkbLineString : 'wkbLineString', ogr.wkbLineString25D : 'wkbLineString25D', ogr.wkbLinearRing : 'wkbLinearRing', ogr.wkbMultiLineString : 'wkbMultiLineString', ogr.wkbMultiLineString25D : 'wkbMultiLineString25D', ogr.wkbMultiPoint : 'wkbMultiPoint', ogr.wkbMultiPoint25D : 'wkbMultiPoint25D', ogr.wkbMultiPolygon : 'wkbMultiPolygon', ogr.wkbMultiPolygon25D : 'wkbMultiPolygon25D', ogr.wkbNDR : 'wkbNDR', ogr.wkbNone : 'wkbNone', ogr.wkbPoint : 'wkbPoint', ogr.wkbPoint25D : 'wkbPoint25D', ogr.wkbPolygon : 'wkbPolygon', ogr.wkbPolygon25D : 'wkbPolygon25D', ogr.wkbUnknown : 'wkbUnknown', ogr.wkbXDR : 'wkbXDR' } def getWkbString(type): return WKB_MAP.get(type) or "Unknown" def convertToMultiLine(feature): """ Converts a feature to a multiline feature. """ geometry = feature.GetGeometryRef() # SRS information is lost while forcing to multiline srs = geometry.GetSpatialReference() geometry = ogr.ForceToMultiLineString(geometry) geometry.AssignSpatialReference(srs) feature.SetGeometry(geometry) return feature def convertToMultiPolygon(feature): """ Converts a feature to a multiline feature. """ geometry = feature.GetGeometryRef() # SRS information is lost while forcing to multiline srs = geometry.GetSpatialReference() geometry = ogr.ForceToMultiPolygon(geometry) geometry.AssignSpatialReference(srs) feature.SetGeometry(geometry) return feature