Mercurial > hg > ChinaGisRestApi
annotate RestDbGisApi.py @ 252:efd2469d1722
geometry-column of tables will be displayed as string
| author | fknauft |
|---|---|
| date | Tue, 20 Sep 2011 11:19:35 +0200 |
| parents | d7ceeb8ccbd7 |
| children | 901c1f745d13 |
| rev | line source |
|---|---|
| 43 | 1 ''' |
| 2 Created on 2.9.2010 | |
| 3 | |
| 4 @author: casties, fknauft | |
| 5 ''' | |
| 6 | |
| 7 from OFS.Folder import Folder | |
| 8 from Products.PageTemplates.PageTemplateFile import PageTemplateFile | |
| 9 from Products.ZSQLExtend import ZSQLExtend | |
| 10 import logging | |
| 11 import re | |
| 12 import time | |
| 61 | 13 import datetime |
| 57 | 14 import urllib |
| 247 | 15 import urlFunctions |
| 43 | 16 |
| 17 from RestDbInterface import * | |
| 18 | |
| 19 | |
| 20 | |
| 55 | 21 def kmlEncode(s): |
| 22 """returns string encoded for displaying in KML attribute""" | |
| 23 res = s.replace("'","__Apostroph__") | |
| 24 res = res.replace('"','__DoubleApostroph__') | |
| 25 res = res.replace(';','__$$__') | |
| 26 res = res.replace('&','&') | |
| 27 return res | |
| 28 | |
| 29 | |
| 43 | 30 class RestDbGisApi(RestDbInterface): |
| 31 """Object for RESTful GIS database queries | |
| 32 path schema: /db/{schema}/{table}/ | |
| 33 omitting table gives a list of schemas | |
| 34 omitting table and schema gives a list of schemas | |
| 35 """ | |
| 36 | |
| 37 meta_type="RESTgis" | |
| 38 | |
| 39 # data templates | |
| 40 GIS_schema_table = PageTemplateFile('zpt/GIS_schema_table', globals()) | |
| 55 | 41 KML_schema_table = PageTemplateFile('zpt/KML_schema_table', globals()) |
| 61 | 42 HTML_schema_usertables = PageTemplateFile('zpt/HTML_schema_usertables', globals()) |
| 55 | 43 |
| 44 | 44 # and scripts |
| 245 | 45 def KML_URL_schema_table(self,schema,table, useTimestamp=True): |
| 44 | 46 """KML_URL table function""" |
| 47 self.REQUEST.RESPONSE.setHeader("Content-Type", "text/plain") | |
| 48 id = self.REQUEST.get('id',[]) | |
| 49 doc = self.REQUEST.get('doc',None) | |
| 245 | 50 # return self.getLiveKmlUrl(schema=schema,table=table, useTimestamp=useTimestamp) |
| 51 return self.getLiveKmlUrl(schema=schema,table=table, useTimestamp=False) | |
| 43 | 52 |
| 61 | 53 # |
| 54 # database methods | |
| 55 # | |
| 70 | 56 toSqlTypeMap = { |
| 57 "text": "text", | |
| 58 "number": "numeric", | |
| 59 "id": "text", | |
| 60 "gis_id": "text", | |
| 61 "coord_lat": "numeric", | |
|
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62 "coord_lon": "numeric", |
|
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63 "the_geom": "the_geom" |
| 70 | 64 } |
| 65 | |
| 60 | 66 def getTableOwner(self,schema,table): |
| 67 """returns the owner of the table""" | |
| 61 | 68 # what do we do with the schema? |
| 69 sql = 'select table_owner from public.gis_table_meta where table_name = %s' | |
| 70 res = self.executeSQL(sql,(table,)) | |
| 71 if len(res['rows']) > 0: | |
| 72 return res['rows'][0][0] | |
| 60 | 73 return None |
| 74 | |
| 75 def isAllowed(self,action,schema,table,user=None,owner=None): | |
| 43 | 76 """returns if the requested action on the table is allowed""" |
| 77 if user is None: | |
| 78 user = self.REQUEST.get('AUTHENTICATED_USER',None) | |
| 60 | 79 logging.debug("isAllowed action=%s schema=%s table=%s user=%s"%(action,schema,table,user)) |
| 80 if action == "create": | |
| 81 if user is not None and str(user) != 'Anonymous User': | |
| 82 # any authenticated user can create | |
| 83 return True | |
| 84 else: | |
| 85 return False | |
| 86 | |
| 87 if action == "update": | |
| 88 if owner is None: | |
| 89 owner = self.getTableOwner(schema,table) | |
| 61 | 90 logging.debug("isAllowed user=%s owner=%s"%(user,owner)) |
| 60 | 91 if user is not None and str(user) == str(owner): |
| 92 # update only your own table | |
| 93 return True | |
| 94 else: | |
| 95 return False | |
| 96 | |
| 62 | 97 # anything else is allowed |
| 43 | 98 return True |
| 99 | |
| 61 | 100 def setTableMetaTypes(self,schema,table,fields,user=None): |
| 43 | 101 """sets the GIS meta information for table""" |
| 61 | 102 if user is None: |
| 103 user = self.REQUEST.get('AUTHENTICATED_USER',None) | |
| 104 | |
| 105 logging.debug("settablemetatypes schema=%s, table=%s, fields=%s user=%s"%(schema,table,fields,user)) | |
| 43 | 106 |
| 61 | 107 today = datetime.date.today().isoformat() |
| 108 | |
| 109 res = self.executeSQL('select * from public.gis_table_meta where table_name = %s', (table,)) | |
| 43 | 110 if len(res['rows']) > 0: |
| 111 # meta record exists | |
| 61 | 112 sql = 'update public.gis_table_meta set table_owner=%s, table_modified=%s where table_name=%s' |
| 113 self.executeSQL(sql, (str(user),today,table), hasResult=False) | |
| 43 | 114 else: |
| 115 # new meta record | |
| 61 | 116 sql = 'insert into public.gis_table_meta (table_name,table_owner,table_created) values (%s,%s,%s)' |
| 117 self.executeSQL(sql, (table,str(user),today), hasResult=False) | |
| 118 | |
| 119 # update row info | |
| 120 sql = 'delete from public.gis_table_meta_rows where table_name=%s' | |
| 121 self.executeSQL(sql,(table,),hasResult=False) | |
| 122 sql = 'insert into public.gis_table_meta_rows (table_name,field_name,gis_type) values (%s,%s,%s)' | |
| 123 for f in fields: | |
| 124 t = f['type'] | |
| 125 fn = f['name'] | |
| 126 self.executeSQL(sql, (table,fn,t), hasResult=False) | |
| 43 | 127 |
| 128 | |
| 61 | 129 def getListOfUserTables(self,schema='public',username='guest'): |
| 130 """return list of tables""" | |
| 131 logging.debug("getlistofusertables") | |
| 132 # get list of db tables | |
| 100 | 133 # qstr = """SELECT t.table_name FROM information_schema.tables t, public.gis_table_meta m WHERE t.table_type = 'BASE TABLE' |
| 134 # AND t.table_schema = %s AND t.table_name = m.table_name ORDER BY 1""" | |
| 135 qstr = """SELECT t.table_name FROM information_schema.tables t, public.gis_table_meta m | |
| 136 WHERE t.table_schema = %s AND t.table_name = m.table_name ORDER BY 1""" | |
| 43 | 137 |
| 61 | 138 data=self.executeSQL(qstr,(schema,)) |
| 139 return data | |
| 140 | |
| 43 | 141 |
| 142 def createEmptyTable(self,schema,table,fields): | |
| 143 """create a table with the given fields | |
| 144 returns list of created fields""" | |
| 61 | 145 sqlFields = RestDbInterface.createEmptyTable(self,schema,table,fields) |
| 146 if sqlFields is not None: | |
| 43 | 147 self.setTableMetaTypes(schema,table,sqlFields) |
| 61 | 148 |
| 149 return sqlFields | |
| 43 | 150 |
| 151 | |
| 59 | 152 def getLiveKmlUrl(self,schema,table,useTimestamp=True,REQUEST=None): |
| 57 | 153 if REQUEST is None: |
| 154 REQUEST = self.REQUEST | |
| 55 | 155 logging.debug("getLiveKmlUrl") |
| 156 baseUrl = self.absolute_url() | |
| 57 | 157 timestamp = time.time() |
| 59 | 158 # filter parameters in URL and add to new URL |
| 57 | 159 params = [p for p in REQUEST.form.items() if p[0] not in ('format','timestamp')] |
| 160 params.append(('format','KML')) | |
| 59 | 161 if useTimestamp: |
| 162 # add timestamp so URL changes every time | |
| 163 params.append(('timestamp',timestamp)) | |
| 57 | 164 paramstr = urllib.urlencode(params) |
| 165 return "%s/db/%s/%s?%s"%(baseUrl,schema,table,paramstr) | |
| 55 | 166 |
| 127 | 167 def getKmlData(self, schema, table, ids=None, sortBy=1, gisIdField=None, latField=None, lonField=None, geomField="point", colorField="red"): |
| 55 | 168 """returns data structure for KML template""" |
| 249 | 169 logging.debug("getKMLdata gid=%s lat=%s lon=%s sortBy=%s geom=%s color=%s"%(gisIdField,latField,lonField,sortBy,geomField,colorField)) |
| 148 | 170 if geomField is None: |
| 171 geomField="point" | |
| 172 if colorField is None: | |
| 173 colorField="red" | |
| 55 | 174 # Mapping a set of points from table-based SQL-query: |
| 175 qstr='SELECT * FROM "%s"."%s"'%(schema,table) | |
| 176 idList = None | |
| 177 if ids is not None: | |
| 178 qstr += ' WHERE ' | |
| 179 if table=='mpdl': | |
| 180 qstr += 'mpdl_xmlsource_id IN (' | |
| 181 else: | |
| 182 qstr += 'CAST(id AS text) IN (' | |
| 183 | |
| 184 idList = ids.split(",") | |
| 185 qstr += ','.join(['%s' for i in idList]) | |
| 186 qstr += ')' | |
| 187 | |
| 58 | 188 if sortBy: |
| 189 # add sort clause | |
| 59 | 190 if sortBy == 1: |
| 191 qstr += ' ORDER BY 1' | |
| 249 | 192 elif sortBy == 'Default': |
| 193 qstr += ' ORDER BY 1' | |
|
250
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194 elif sortBy == 'undefined': |
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195 qstr += ' ORDER BY 1' |
| 59 | 196 else: |
| 197 # TODO: proper quoting for names | |
| 198 qstr += ' ORDER BY "%s"'%sortBy.replace('"','') | |
| 245 | 199 bad_luck=True |
| 200 bl_counter=0 | |
| 201 while (bad_luck): | |
| 202 try: | |
| 203 data = self.executeSQL(qstr,idList) | |
| 204 bad_luck=False | |
| 205 bl_counter=bl_counter+1 | |
| 206 except: | |
| 207 if (bl_counter<100): | |
| 208 bad_luck=True | |
| 209 else: | |
| 210 bad_luck=False | |
| 211 | |
| 55 | 212 fieldMap = self.getFieldNameMap(data['fields']) |
| 247 | 213 if (geomField!="point"): |
| 214 try: | |
| 215 geomstr='select astext(st_simplify(transform(the_geom,4326),0.05)) from "%s"."%s"'%(schema,table) | |
| 233 | 216 geomdata=self.executeSQL(geomstr) |
| 247 | 217 teststr=geomdata.values()[1][0] |
| 218 if (teststr == (u'MULTIPOLYGON EMPTY',)): | |
| 219 geomstr='select astext(st_simplify(transform(the_geom,2333),0.05)) from "%s"."%s"'%(schema,table) | |
| 220 geomdata=self.executeSQL(geomstr) | |
| 233 | 221 |
| 207 | 222 except: |
| 247 | 223 try: |
| 224 geomstr='select chgis.astext(chgis.st_simplify(chgis.transform(the_geom,4326),0.05)) from "%s"."%s"'%(schema,table) | |
| 225 geomdata=self.executeSQL(geomstr) | |
| 226 except: | |
| 227 geomdata=None | |
| 117 | 228 |
| 233 | 229 if (gisIdField is None) and (latField is None or lonField is None) and geomField=='point': |
| 55 | 230 # no fields given - choose automagically |
| 93 | 231 sql = 'SELECT field_name FROM public.gis_table_meta_rows WHERE table_name = %s and gis_type = %s' |
| 55 | 232 # gis id in metadata first |
| 61 | 233 res = self.executeSQL(sql, (table,'gis_id')) |
| 55 | 234 if len(res['rows']) > 0: |
| 235 gisIdField = res['rows'][0][0] | |
| 236 else: | |
| 93 | 237 # latitude in metadata |
| 238 res = self.executeSQL(sql, (table,'coord_lat')) | |
| 239 if len(res['rows']) > 0: | |
| 240 latField = res['rows'][0][0] | |
| 241 # longitude in metadata | |
| 242 res = self.executeSQL(sql, (table,'coord_lon')) | |
| 243 if len(res['rows']) > 0: | |
| 244 lonField = res['rows'][0][0] | |
| 245 | |
| 233 | 246 if (gisIdField is None) and (latField is None or lonField is None) and geomField=='point': |
| 93 | 247 logging.warning("no entry in metadata table for table %s" % table) |
| 248 # still no fields - try field names | |
| 249 if 'latitude' in fieldMap and 'longitude' in fieldMap: | |
| 250 latField = 'latitude' | |
| 251 lonField = 'longitude' | |
| 252 elif 'x_coord' in fieldMap and 'y_coord' in fieldMap: | |
| 253 latField = 'x_coord' | |
| 254 lonField = 'y_coord' | |
| 255 else: | |
| 256 logging.error("getKMLdata unable to find position fields") | |
| 257 return None | |
| 258 | |
| 55 | 259 |
| 260 # convert field names to row indexes | |
| 261 gisIdIdx = fieldMap.get(gisIdField,None) | |
| 262 latIdx = fieldMap.get(latField,None) | |
| 263 lonIdx = fieldMap.get(lonField,None) | |
| 117 | 264 the_geom=fieldMap.get("the_geom",None) |
| 55 | 265 logging.debug("gisidfield=%s idx=%s"%(gisIdField,gisIdIdx)) |
| 266 | |
| 267 # convert data | |
| 268 kmlData = [] | |
| 151 | 269 geom_list = {} |
| 233 | 270 try: |
| 271 if geomField=='poly' or geomField=='line': | |
| 150 | 272 geom_list=geomdata.values()[1] |
| 233 | 273 except: |
| 274 return "no geomdata in RestDbGisApi Line 254" | |
| 150 | 275 data_list=data['rows'] |
| 276 for k in range (len(data_list)): | |
| 277 dataset = data_list[k] | |
| 278 if len(geom_list)>k: | |
| 279 geom_value = geom_list[k] | |
| 280 | |
| 281 | |
| 282 | |
| 283 # for dataset in data['rows']: | |
| 65 | 284 xCoord = 0.0 |
| 285 yCoord = 0.0 | |
| 233 | 286 if gisIdIdx is not None and geomField=='point' : |
| 55 | 287 gisID = dataset[gisIdIdx] |
| 58 | 288 coords=self.getPointForChGisId(gisID) |
| 55 | 289 if coords!=None: |
| 290 xCoord=coords[0] | |
| 291 yCoord=coords[1] | |
| 292 | |
| 293 elif latIdx is not None: | |
| 294 xCoord = dataset[lonIdx] | |
| 295 yCoord = dataset[latIdx] | |
| 296 | |
| 233 | 297 elif geomField=='point' : |
| 55 | 298 logging.error("getKMLdata unable to find position") |
| 299 return None | |
| 300 | |
| 233 | 301 if geomField=='point' : |
| 302 if float(xCoord) == 0.0: | |
| 55 | 303 continue |
| 233 | 304 if float(yCoord) == 0.0: |
| 55 | 305 continue |
| 306 | |
| 307 kmlPlace = {} | |
| 308 | |
| 309 # description | |
| 310 desc = '' | |
| 150 | 311 |
| 312 | |
| 313 for i in range (len(dataset)): | |
| 314 value = dataset[i] | |
| 315 | |
| 55 | 316 name = data['fields'][i][0] |
| 58 | 317 #logging.debug("value=%s"%value) |
| 150 | 318 if name != 'the_geom': |
| 319 if value != None: | |
| 57 | 320 #if name.find('name')>-1: |
| 321 # desc += "<name>%s</name>\n"%value | |
| 322 # continue | |
| 323 #elif name.find('place')>-1: | |
| 324 # desc += "<name>%s</name>\n"%value | |
| 325 # continue | |
| 55 | 326 |
| 327 val = "%s: %s"%(name, value) | |
| 187 | 328 value=unicode(value) |
| 188 | 329 |
| 330 # If there is a link within the description data, create a valid href | |
| 191 | 331 if value.find('http://')>-1: |
| 332 link_str_beg=value.find('http://') | |
| 333 link_str_end = -1 | |
| 334 link_str_end0=value.find(' ',link_str_beg) | |
| 335 link_str_end1=value.find('>',link_str_beg) | |
| 336 if link_str_end0 <link_str_end1: | |
| 337 link_str_end=link_str_end0 | |
| 338 else: | |
| 339 link_str_end=link_str_end1 | |
| 340 if link_str_end > -1: | |
| 341 link_str=value[link_str_beg:link_str_end] | |
| 207 | 342 val =name+": "+value[0:link_str_beg]+'<a href=' + link_str + '> ' + link_str.replace('http://','') + ' </a>' + value[link_str_end:] |
| 191 | 343 else: |
| 344 link_str=value[link_str_beg:] | |
| 207 | 345 val =name+': '+value[0:link_str_beg]+'<a href=' + link_str + '> ' + link_str.replace('http://','') + ' </a>' |
| 188 | 346 |
| 347 | |
| 57 | 348 #desc += kmlEncode(val) |
| 349 desc += val | |
| 55 | 350 desc += '<br/>\n' |
| 351 | |
| 57 | 352 #kmlPlace['description'] = "<![CDATA[%s]]>"%desc |
| 150 | 353 |
| 124 | 354 |
| 133 | 355 if geomField=='point': |
| 207 | 356 kmlPlace['description'] = "<![CDATA[%s]]>"%desc |
| 193 | 357 |
| 133 | 358 kmlPlace['icon'] = '#marker_icon_'+colorField |
| 359 kmlPlace['coord_x'] = str(xCoord) | |
| 360 kmlPlace['coord_y'] = str(yCoord) | |
| 361 kmlPlace['coord_z'] = '0' | |
| 134 | 362 kmlData.append(kmlPlace) |
| 233 | 363 if (geomField=='poly' or geomField=='line') and len(geomdata)>0: |
| 150 | 364 polys=str(geom_value).split('(') |
| 144 | 365 aaa=len(polys) |
| 142 | 366 for poly in polys: |
| 150 | 367 kmlPlace = {} |
| 368 kmlPlace['description'] = desc | |
| 152 | 369 coords=poly.replace(')','').replace("'","").split(',') |
| 150 | 370 coord_string='' |
| 144 | 371 if len(coords)>1: |
| 146 | 372 for coord in coords: |
| 373 coord=coord.split(' ') | |
| 374 try: | |
| 375 x_coord=coord[0] | |
| 376 y_coord=coord[1] | |
| 377 except: | |
| 378 break | |
| 150 | 379 coord_string+=x_coord+','+y_coord+','+'0 ' |
| 380 if coord_string != '': | |
| 381 kmlPlace['LinearRing']=coord_string | |
| 245 | 382 kmlPlace['lineColor']='#'+colorField+'_'+geomField |
| 150 | 383 kmlData.append(kmlPlace) |
| 55 | 384 #logging.debug("kmlData=%s"%(repr(kmlData))) |
| 385 return kmlData | |
| 58 | 386 |
| 387 def getPointForChGisId(self, gis_id): | |
| 388 """returns coordinate pair for given gis_id""" | |
| 59 | 389 def getPoint(id): |
| 247 | 390 str_gis_id=str(id).split('.')[0] |
| 391 sql="SELECT x_coord,y_coord FROM chgis.chgis_coords WHERE gis_id LIKE CAST('%s' AS text)"%str(str_gis_id) | |
| 392 # logging.error("sql:",sql) | |
| 393 # res = self.executeSQL(sql, (str(str_gis_id),)) | |
| 394 res = self.executeSQL(sql) | |
| 59 | 395 if len(res['rows']) > 0: |
| 396 return res['rows'][0] | |
| 247 | 397 else: |
| 398 #logging.error("error on sql:",sql%(str(str_gis_id),)) | |
| 399 return None | |
| 55 | 400 |
| 58 | 401 if gis_id is None or gis_id == "": |
| 402 return None | |
| 403 | |
| 59 | 404 # try gis_id |
| 405 coords = getPoint(gis_id) | |
| 406 if coords is None: | |
| 58 | 407 # try to clean gis_id... |
| 247 | 408 gis_id_short = re.sub(r'[^0-9]','',gis_id) |
| 58 | 409 # try again |
| 247 | 410 coords = getPoint(gis_id_short) |
| 59 | 411 if coords is None: |
| 247 | 412 #logging.error("CH-GIS ID %s not found!"%str(gis_id_short)) |
| 413 | |
| 414 # this will ask the Harvard-Service for the Coords of this gis_id and write it into our coords-list | |
| 415 try: | |
| 416 coords=self.getCoordsFromREST_gisID(gis_id) | |
| 417 #logging.error("coords from REST"%str(coords)) | |
| 418 except: | |
| 419 logging.error("coords from REST did not work for "%str(gis_id)) | |
| 420 if coords[0] is None: | |
| 421 logging.error("CH-GIS ID %s not found in Harvard"%str(gis_id)) | |
| 422 else: | |
| 423 try: | |
| 424 SQL="INSERT INTO chgis.chgis_coords (gis_id,x_coord,y_coord) VALUES (CAST(%s AS text),CAST(%s AS numeric),CAST(%s AS numeric))" | |
| 425 SQL_analyze="ANALYZE chgis.chgis_coords" | |
| 426 self.executeSQL(SQL,(str(gis_id_short),str(coords[0][1]),str(coords[0][0])),False) | |
| 427 self.executeSQL(SQL_analyze,(),False) | |
| 428 except: | |
| 429 logging.error("Could not write into chgis_coords: ", str(gis_id_short)) | |
| 430 logging.error("coords[0][0]:"%coords[0][0]) | |
| 431 logging.error("coords[0][1]:"%coords[0][1]) | |
| 432 return coords[0] | |
| 433 coords_test = getPoint(gis_id) | |
| 434 #logging.error("SQL results now:", str(coords_test)) | |
| 435 return coords[0] | |
| 58 | 436 |
| 59 | 437 return coords |
| 438 | |
| 55 | 439 |
| 59 | 440 ## legacy methods... |
| 441 | |
| 442 def getKmlUrl(self,schema='chgis',table='mpdl',id=[],doc=None): | |
| 443 logging.debug("getKmlUrl") | |
| 444 data = self.getDataForGoogleMap(schema,table,id,doc) | |
| 445 kml=self.getKMLname(data=data,table=table) | |
| 446 baseUrl = self.absolute_url() | |
| 447 return "%s/daten/%s"%(baseUrl,kml) | |
| 448 | |
| 449 def getDataForGoogleMap(self,schema='chgis',table='mpdl',id=None,doc=None): | |
| 450 logging.debug("getDataForGoogleMap") | |
| 451 qstr="SELECT * FROM "+schema+"."+table | |
| 452 try: | |
| 453 if id is not None: | |
| 454 qstr=qstr+" WHERE " | |
| 455 for id_item in id.split(","): | |
| 456 if table=='mpdl': | |
| 457 qstr=qstr+" mpdl_xmlsource_id = '"+id_item+ "' OR" | |
| 458 else: | |
| 459 qstr=qstr+" cast(id as text) LIKE '"+id_item+ "' OR" | |
| 460 qstr=str(qstr).rsplit(" ",1)[0] #to remove last " and " | |
| 461 data=self.ZSQLSimpleSearch(qstr) | |
| 462 return data | |
| 463 except: | |
| 464 return qstr | |
| 55 | 465 |
| 466 | |
| 43 | 467 def getKMLname(self,data=[],table=""): |
| 468 logging.debug("getKMLname") | |
| 469 #session=context.REQUEST.SESSION | |
| 109 | 470 kml4Marker="<kml xmlns=\'http://www.opengis.net/kml/2.2\'><Document>" |
| 471 kml4Marker+="<Style id=\'marker_icon_red\'><IconStyle><scale>15</scale><Icon><href>http://mappit.mpiwg-berlin.mpg.de/mappit/icons/dot_red.png</href></Icon></IconStyle></Style>\n" | |
| 472 kml4Marker+="<Style id=\'marker_icon_black\'><IconStyle><scale>15</scale><Icon><href>http://mappit.mpiwg-berlin.mpg.de/mappit/icons/dot_black.png</href></Icon></IconStyle></Style>\n" | |
| 473 kml4Marker+="<Style id=\'marker_icon_blue\'><IconStyle><scale>15</scale><Icon><href>http://mappit.mpiwg-berlin.mpg.de/mappit/icons/dot_blue.png</href></Icon></IconStyle></Style>\n" | |
| 474 kml4Marker+="<Style id=\'marker_icon_green\'><IconStyle><scale>15</scale><Icon><href>http://mappit.mpiwg-berlin.mpg.de/mappit/icons/dot_green.png</href></Icon></IconStyle></Style>\n" | |
| 475 kml4Marker+="<Style id=\'marker_icon_violett\'><IconStyle><scale>15</scale><Icon><href>http://mappit.mpiwg-berlin.mpg.de/mappit/icons/dot_violett.png</href></Icon></IconStyle></Style>\n" | |
| 43 | 476 initializeStringForGoogleMaps="" |
| 477 #doLine=container.getVar('doLine') | |
| 478 # Mapping a set of points from table-based SQL-query: | |
| 479 if data!=None: | |
| 480 try: | |
| 481 SQL='SELECT "attribute with gis_id" FROM public.metadata WHERE tablename = %s' | |
| 482 res = self.executeSQL(SQL, (table,)) | |
| 483 gisIDattribute = res['rows'][0][0] | |
| 484 except: | |
| 485 return "table not registered within metadata" | |
| 486 | |
| 487 for dataset in data: | |
| 488 try: | |
| 489 xCoord=getattr(dataset,'longitude') | |
| 490 yCoord=getattr(dataset,'latitude') | |
| 491 except: | |
| 492 try: | |
| 493 xCoord=getattr(dataset,'x_coord') | |
| 494 yCoord=getattr(dataset,'y_coord') | |
| 495 except: | |
| 496 #try: | |
| 497 gisID=getattr(dataset,gisIDattribute) | |
| 498 coords=self.getPoint4GISid(gisID) | |
| 499 if coords!=None: | |
| 500 xCoord=coords[0] | |
| 501 yCoord=coords[1] | |
| 502 # except: | |
| 503 # return "no coordinates found" | |
| 504 | |
| 505 if float(xCoord)!=0: | |
| 506 if float(yCoord)!=0: | |
| 507 kml4Marker=kml4Marker+"<Placemark>" | |
| 508 kml4Marker=kml4Marker+"<description> <![CDATA[<b>" | |
| 509 for values in dataset: | |
| 55 | 510 #logging.debug("values=%s"%repr(values)) |
| 43 | 511 if values != (None, None): |
| 512 if str(values).find('name')>-1: | |
| 513 kml4Marker=kml4Marker+"<name>"+str(values[1])+"</name>\n" | |
| 514 continue | |
| 515 elif str(values).find('place')>-1: | |
| 516 kml4Marker=kml4Marker+"<name>"+str(values[1])+"</name>\n" | |
| 517 continue | |
| 518 | |
| 519 kml4Marker=kml4Marker+str(values)+": " | |
| 520 attribute_string=str(values).replace("'","__Apostroph__") | |
| 521 attribute_string=str(attribute_string).replace('"','__DoubleApostroph__') | |
| 522 attribute_string=str(attribute_string).replace(';','__$$__') | |
| 523 attribute_string=str(attribute_string).replace('&','&') | |
| 524 if str(attribute_string).find('http')>-1: | |
| 207 | 525 attribute_string='<A HREF=' + str(attribute_string) + ' target="_blank">' + str(attribute_string) + '</A>' |
| 43 | 526 kml4Marker=kml4Marker+attribute_string+"</a><br>\n" |
| 527 | |
| 528 kml4Marker=kml4Marker+"]]></description>\n" | |
| 117 | 529 kml4Marker=kml4Marker+"<styleURL>#marker_icon_red</styleURL>\n" |
| 43 | 530 kml4Marker=kml4Marker+"<Point>" |
| 531 | |
| 532 kml4Marker=kml4Marker+"<coordinates>"+str(xCoord)+","+str(yCoord)+",0</coordinates>\n" | |
| 533 kml4Marker=kml4Marker+"</Point>\n" | |
| 534 kml4Marker=kml4Marker+"</Placemark>\n" | |
| 535 | |
| 536 kml4Marker=kml4Marker+"</Document>\n</kml>" | |
| 537 kmlFileName="marker"+str(time.time())+".kml" | |
| 538 | |
| 539 #kml4Marker=str(kml4Marker).replace('&','$$') | |
| 540 #kml4Marker=str(kml4Marker).replace(';','__$$__') | |
| 541 #kml4Marker=str(kml4Marker).replace('#','__SHARP__') | |
| 542 isLoadReady='false' | |
| 543 while isLoadReady=='false': | |
| 544 isLoadReady=self.RESTwrite2File(self.daten,kmlFileName,kml4Marker) | |
| 545 | |
| 546 return kmlFileName | |
| 207 | 547 |
| 548 def trydatahas_key(self,data,index,key_string): | |
| 549 try: | |
| 550 return data[index].has_key(key_string) | |
| 551 except: | |
| 552 return 'false' | |
| 43 | 553 |
| 44 | 554 # def getGoogleMapString(self,kml): |
| 555 # logging.debug("getGoogleMapString") | |
| 556 # printed= '<body %s> '%kml +"""\n <div id="map_canvas" style="width: 98%; height: 95%"> </div> \n </body>" \n </html>""" | |
| 557 # return printed | |
| 43 | 558 |
| 559 def getPoint4GISid(self,gis_id): | |
| 560 j=0 | |
| 561 coords=(0,0) | |
| 562 if gis_id != None: | |
| 563 while (True): | |
| 564 j=j+1 | |
| 565 if (j>100): # FJK: just to prevent endless loops | |
| 566 break | |
| 567 if (gis_id.isdigit()): # FJK: regular exit from while-loop | |
| 568 break | |
| 569 else: | |
| 570 gis_id=gis_id.strip('abcdefghijklmnopqrstuvwxyz_') # FJK: to strip all letters | |
| 571 gis_id=gis_id.strip() # FJK: to strip all whitespaces | |
| 572 resultpoint = [0,0] | |
| 573 results = None | |
| 574 try: | |
| 575 if int(gis_id)>0: | |
| 576 SQL="SELECT x_coord,y_coord FROM chgis.chgis_coords WHERE gis_id LIKE cast("+ str(gis_id) +" as text);" | |
| 577 results=self.ZSQLSimpleSearch(SQL) | |
| 578 #print results | |
| 579 if results != None: | |
| 580 for result in results: | |
| 581 resultpoint=[getattr(result,str('x_coord')),getattr(result,str('y_coord'))] | |
| 582 if resultpoint !=[0,0]: | |
| 583 return resultpoint | |
| 584 else: | |
| 247 | 585 coords=self.getCoordsFromREST_gisID(gis_id) |
| 586 SQL="INSERT INTO chgis.chgis_coords (chgis_coords_pkey,gis_id,x_coord,y_coord) VALUES (default," +gis_id+ "," +coords[0][1]+ "," +coords[0][0]+ "); ANALYZE chgis.chgis_coords;" | |
| 43 | 587 returnstring=self.ZSQLSimpleSearch(SQL) |
| 588 return coords[0] | |
| 589 except: | |
| 590 return "gis_id not to interpretable:"+str(gis_id) | |
| 591 else: | |
| 592 return coords[0] | |
| 593 | |
| 594 def getCoordsFromREST_gisID(self,gis_id): | |
| 247 | 595 gis_id=gis_id.strip() |
| 43 | 596 coordlist=[] |
| 597 i=0 | |
| 598 while (i<5 and coordlist==[]): | |
| 247 | 599 urlresponse=urlFunctions.zUrlopenParseString(self,urlFunctions.zUrlopenRead(self,"http://chgis.hmdc.harvard.edu/xml/id/"+gis_id)) |
| 600 baseDocElement= urlFunctions.zUrlopenDocumentElement(self,urlresponse) | |
| 601 childnodes=urlFunctions.zUrlopenChildNodes(self,baseDocElement) | |
| 602 itemnodes=urlFunctions.zUrlopenGetElementsByTagName(self,baseDocElement,'item') | |
| 603 itemspatialnodes=None | |
| 604 | |
| 605 for i in range(0,urlFunctions.zUrlopenLength(self,itemnodes)): | |
| 606 itemnode=urlFunctions.zUrlopenGetItem(self,itemnodes,i) | |
| 607 itemspatialnodes=urlFunctions.zUrlopenGetElementsByTagName(self,itemnode,'spatial') | |
| 608 if itemspatialnodes is not None: | |
| 609 for j in range(0,urlFunctions.zUrlopenLength(self,itemspatialnodes)): | |
| 610 coord=[] | |
| 611 itemspatialnode= urlFunctions.zUrlopenGetItem(self,itemspatialnodes,j) | |
| 612 itemspatiallatnodes=urlFunctions.zUrlopenGetElementsByTagName(self,itemspatialnode,'degrees_latitude') | |
| 613 for k in range(0,urlFunctions.zUrlopenLength(self,itemspatiallatnodes)): | |
| 614 itemspatiallatnode= urlFunctions.zUrlopenGetItem(self,itemspatiallatnodes,k) | |
| 615 coord.append(urlFunctions.zUrlopenGetTextData(self,itemspatiallatnode)) | |
| 616 itemspatiallngnodes=urlFunctions.zUrlopenGetElementsByTagName(self,itemspatialnode,'degrees_longitude') | |
| 617 for k in range(0,urlFunctions.zUrlopenLength(self,itemspatiallngnodes)): | |
| 618 itemspatiallngnode= urlFunctions.zUrlopenGetItem(self,itemspatiallngnodes,k) | |
| 619 coord.append(urlFunctions.zUrlopenGetTextData(self,itemspatiallngnode)) | |
| 620 coordlist.append(coord) | |
| 621 gis_id= "_"+gis_id | |
| 43 | 622 return coordlist |
| 623 | |
| 624 # End for GoogleMaps creation | |
| 625 | |
| 626 def RESTwrite2File(self,datadir, name,text): | |
| 627 logging.debug("RESTwrite2File datadir=%s name=%s"%(datadir,name)) | |
| 628 try: | |
| 629 import cStringIO as StringIO | |
| 630 except: | |
| 631 import StringIO | |
| 632 | |
| 633 # make filehandle from string | |
| 634 textfile = StringIO.StringIO(text) | |
| 635 fileid=name | |
| 636 if fileid in datadir.objectIds(): | |
| 637 datadir.manage_delObjects(fileid) | |
| 638 fileInZope=datadir.manage_addFile(id=fileid,file=textfile) | |
| 639 return "Write successful" | |
| 640 | |
| 641 def manage_editRestDbGisApi(self, title=None, connection_id=None, | |
| 642 REQUEST=None): | |
| 643 """Change the object""" | |
| 644 if title is not None: | |
| 645 self.title = title | |
| 646 | |
| 647 if connection_id is not None: | |
| 648 self.connection_id = connection_id | |
| 649 | |
| 650 #checkPermission=getSecurityManager().checkPermission | |
| 651 REQUEST.RESPONSE.redirect('manage_main') | |
| 652 | |
| 653 | |
| 654 manage_addRestDbGisApiForm=PageTemplateFile('zpt/addRestDbGisApi',globals()) | |
| 655 | |
| 656 def manage_addRestDbGisApi(self, id, title='', label='', description='', | |
| 657 createPublic=0, | |
| 658 createUserF=0, | |
| 659 REQUEST=None): | |
| 660 """Add a new object with id *id*.""" | |
| 661 | |
| 662 ob=RestDbGisApi(str(id),title) | |
| 663 self._setObject(id, ob) | |
| 664 | |
| 665 #checkPermission=getSecurityManager().checkPermission | |
| 666 REQUEST.RESPONSE.redirect('manage_main') | |
| 667 | |
| 247 | 668 |
| 669 | |
| 670 |