Mercurial > dive4elements > river

annotate flys-backend/contrib/shpimporter/utils.py @ 4997:fa2a3ed97464 dami

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Remove skip lines documentation line
author Andre Heinecke <aheinecke@intevation.de>
date Fri, 15 Feb 2013 11:55:34 +0100
parents 998b29c8d2fd
children 769593a84606
rev   line source
2798
5a654f2e35bc Added a python tool to import shapefiles into database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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1 import os
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2 import sys
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59ca5dab2782 Shape importer: use python's OptionParse to read user specific configuration from command line.
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3 from shpimporter import DEBUG, INFO, ERROR
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4 try:
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5 from osgeo import ogr
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6 except ImportErrror:
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7 import ogr
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8
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9 SHP='.shp'
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a6ee62a070b0 I'm learning how to use cursors \o/
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10 SQL_SELECT_RIVER_ID="SELECT id FROM rivers WHERE name = %s"
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11
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12 def findShapefiles(path):
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13 shapes = []
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14
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15 for root, dirs, files in os.walk(path):
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16 if len(files) == 0:
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17 continue
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18
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19 DEBUG("Processing directory '%s' with %i files " % (root, len(files)))
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20
5a654f2e35bc Added a python tool to import shapefiles into database.
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21 for f in files:
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22 idx = f.find(SHP)
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23 if (idx+len(SHP)) == len(f):
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24 shapes.append((f.replace(SHP, ''), root + "/" + f))
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25
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26 return shapes
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27
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28 def getRiverId(dbconn, name):
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29 """
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30 Returns the id of the river "name"
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31 Dbconn must be a python database connection api compliant object
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32 """
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33 cur = dbconn.cursor()
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34 cur.execute(SQL_SELECT_RIVER_ID, (name,))
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35 row = cur.fetchone()
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36 if row:
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37 return row[0]
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38 else:
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39 return 0
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40
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41 def getUTF8(string):
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42 """
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43 Tries to convert the string to a UTF-8 encoding by first checking if it
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44 is UTF-8 and then trying cp1252
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45 """
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46 try:
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47 return unicode.encode(unicode(string, "UTF-8"), "UTF-8")
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48 except UnicodeDecodeError:
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49 # Probably European Windows names so lets try again
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50 return unicode.encode(unicode(string, "cp1252"), "UTF-8")
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51
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52 def getUTF8Path(path):
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53 """
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54 Tries to convert path to utf-8 by first checking the filesystemencoding
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55 and trying the default windows encoding afterwards.
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56 Returns a valid UTF-8 encoded unicode object or throws a UnicodeDecodeError
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57 """
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58 try:
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59 return unicode.encode(unicode(path, sys.getfilesystemencoding()), "UTF-8")
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60 except UnicodeDecodeError:
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61 # Probably European Windows names so lets try again
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62 return unicode.encode(unicode(path, "cp1252"), "UTF-8")
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63
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64 WKB_MAP = {
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65 ogr.wkb25Bit : 'wkb25Bit',
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66 ogr.wkbGeometryCollection : 'wkbGeometryCollection',
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67 ogr.wkbGeometryCollection25D :'wkbGeometryCollection25D',
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68 ogr.wkbLineString : 'wkbLineString',
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69 ogr.wkbLineString25D : 'wkbLineString25D',
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70 ogr.wkbLinearRing : 'wkbLinearRing',
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71 ogr.wkbMultiLineString : 'wkbMultiLineString',
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72 ogr.wkbMultiLineString25D : 'wkbMultiLineString25D',
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73 ogr.wkbMultiPoint : 'wkbMultiPoint',
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74 ogr.wkbMultiPoint25D : 'wkbMultiPoint25D',
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75 ogr.wkbMultiPolygon : 'wkbMultiPolygon',
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76 ogr.wkbMultiPolygon25D : 'wkbMultiPolygon25D',
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77 ogr.wkbNDR : 'wkbNDR',
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78 ogr.wkbNone : 'wkbNone',
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79 ogr.wkbPoint : 'wkbPoint',
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80 ogr.wkbPoint25D : 'wkbPoint25D',
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81 ogr.wkbPolygon : 'wkbPolygon',
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82 ogr.wkbPolygon25D : 'wkbPolygon25D',
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83 ogr.wkbUnknown : 'wkbUnknown',
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84 ogr.wkbXDR : 'wkbXDR'
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85 }
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86
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87 def getWkbString(type):
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88 return WKB_MAP.get(type) or "Unknown"
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89
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