Mercurial > hg > ChinaGisRestApi
annotate RestDbGisApi.py @ 260:e9a1ac7d2ab2
Bug resolved in request point_id from Harvard ChGIS
| author | fknauft |
|---|---|
| date | Fri, 07 Oct 2011 12:25:21 +0200 |
| parents | 17b2c2dba0fd |
| children | 5b38b50052e4 |
| 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 |
| 247 | 14 import urlFunctions |
| 43 | 15 |
| 16 from RestDbInterface import * | |
| 17 | |
| 18 | |
| 19 | |
| 55 | 20 def kmlEncode(s): |
| 21 """returns string encoded for displaying in KML attribute""" | |
| 22 res = s.replace("'","__Apostroph__") | |
| 23 res = res.replace('"','__DoubleApostroph__') | |
| 24 res = res.replace(';','__$$__') | |
| 25 res = res.replace('&','&') | |
| 26 return res | |
| 27 | |
| 28 | |
| 43 | 29 class RestDbGisApi(RestDbInterface): |
| 30 """Object for RESTful GIS database queries | |
| 31 path schema: /db/{schema}/{table}/ | |
| 32 omitting table gives a list of schemas | |
| 33 omitting table and schema gives a list of schemas | |
| 34 """ | |
| 35 | |
| 36 meta_type="RESTgis" | |
| 37 | |
| 55 | 38 |
| 44 | 39 # and scripts |
|
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40 def KML_URL_schema_table(self,schema,table, useTimestamp=True, args=None): |
| 44 | 41 """KML_URL table function""" |
| 42 self.REQUEST.RESPONSE.setHeader("Content-Type", "text/plain") | |
| 43 id = self.REQUEST.get('id',[]) | |
| 44 doc = self.REQUEST.get('doc',None) | |
| 245 | 45 # return self.getLiveKmlUrl(schema=schema,table=table, useTimestamp=useTimestamp) |
| 46 return self.getLiveKmlUrl(schema=schema,table=table, useTimestamp=False) | |
| 43 | 47 |
| 61 | 48 # |
| 49 # database methods | |
| 50 # | |
| 70 | 51 toSqlTypeMap = { |
| 52 "text": "text", | |
| 53 "number": "numeric", | |
| 54 "id": "text", | |
| 55 "gis_id": "text", | |
| 56 "coord_lat": "numeric", | |
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57 "coord_lon": "numeric", |
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58 "the_geom": "the_geom" |
| 70 | 59 } |
| 60 | |
| 60 | 61 def getTableOwner(self,schema,table): |
| 62 """returns the owner of the table""" | |
| 61 | 63 # what do we do with the schema? |
| 64 sql = 'select table_owner from public.gis_table_meta where table_name = %s' | |
| 65 res = self.executeSQL(sql,(table,)) | |
| 66 if len(res['rows']) > 0: | |
| 67 return res['rows'][0][0] | |
| 60 | 68 return None |
| 69 | |
| 70 def isAllowed(self,action,schema,table,user=None,owner=None): | |
| 43 | 71 """returns if the requested action on the table is allowed""" |
| 72 if user is None: | |
| 73 user = self.REQUEST.get('AUTHENTICATED_USER',None) | |
| 60 | 74 logging.debug("isAllowed action=%s schema=%s table=%s user=%s"%(action,schema,table,user)) |
| 75 if action == "create": | |
| 76 if user is not None and str(user) != 'Anonymous User': | |
| 77 # any authenticated user can create | |
| 78 return True | |
| 79 else: | |
| 80 return False | |
| 81 | |
| 82 if action == "update": | |
| 83 if owner is None: | |
| 84 owner = self.getTableOwner(schema,table) | |
| 61 | 85 logging.debug("isAllowed user=%s owner=%s"%(user,owner)) |
| 60 | 86 if user is not None and str(user) == str(owner): |
| 87 # update only your own table | |
| 88 return True | |
| 89 else: | |
| 90 return False | |
| 91 | |
| 62 | 92 # anything else is allowed |
| 43 | 93 return True |
| 94 | |
| 61 | 95 def setTableMetaTypes(self,schema,table,fields,user=None): |
| 43 | 96 """sets the GIS meta information for table""" |
| 61 | 97 if user is None: |
| 98 user = self.REQUEST.get('AUTHENTICATED_USER',None) | |
| 99 | |
| 100 logging.debug("settablemetatypes schema=%s, table=%s, fields=%s user=%s"%(schema,table,fields,user)) | |
| 43 | 101 |
| 61 | 102 today = datetime.date.today().isoformat() |
| 103 | |
| 104 res = self.executeSQL('select * from public.gis_table_meta where table_name = %s', (table,)) | |
| 43 | 105 if len(res['rows']) > 0: |
| 106 # meta record exists | |
| 61 | 107 sql = 'update public.gis_table_meta set table_owner=%s, table_modified=%s where table_name=%s' |
| 108 self.executeSQL(sql, (str(user),today,table), hasResult=False) | |
| 43 | 109 else: |
| 110 # new meta record | |
| 61 | 111 sql = 'insert into public.gis_table_meta (table_name,table_owner,table_created) values (%s,%s,%s)' |
| 112 self.executeSQL(sql, (table,str(user),today), hasResult=False) | |
| 113 | |
| 114 # update row info | |
| 115 sql = 'delete from public.gis_table_meta_rows where table_name=%s' | |
| 116 self.executeSQL(sql,(table,),hasResult=False) | |
| 117 sql = 'insert into public.gis_table_meta_rows (table_name,field_name,gis_type) values (%s,%s,%s)' | |
| 118 for f in fields: | |
| 119 t = f['type'] | |
| 120 fn = f['name'] | |
| 121 self.executeSQL(sql, (table,fn,t), hasResult=False) | |
| 43 | 122 |
| 123 | |
| 61 | 124 def getListOfUserTables(self,schema='public',username='guest'): |
| 125 """return list of tables""" | |
| 126 logging.debug("getlistofusertables") | |
| 127 # get list of db tables | |
| 100 | 128 # qstr = """SELECT t.table_name FROM information_schema.tables t, public.gis_table_meta m WHERE t.table_type = 'BASE TABLE' |
| 129 # AND t.table_schema = %s AND t.table_name = m.table_name ORDER BY 1""" | |
| 130 qstr = """SELECT t.table_name FROM information_schema.tables t, public.gis_table_meta m | |
| 131 WHERE t.table_schema = %s AND t.table_name = m.table_name ORDER BY 1""" | |
| 43 | 132 |
| 61 | 133 data=self.executeSQL(qstr,(schema,)) |
| 134 return data | |
| 135 | |
| 43 | 136 |
| 137 def createEmptyTable(self,schema,table,fields): | |
| 138 """create a table with the given fields | |
| 139 returns list of created fields""" | |
| 61 | 140 sqlFields = RestDbInterface.createEmptyTable(self,schema,table,fields) |
| 141 if sqlFields is not None: | |
| 43 | 142 self.setTableMetaTypes(schema,table,sqlFields) |
| 61 | 143 |
| 144 return sqlFields | |
| 43 | 145 |
| 146 | |
| 59 | 147 def getLiveKmlUrl(self,schema,table,useTimestamp=True,REQUEST=None): |
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148 return self.getLiveUrl(schema,table,useTimestamp,REQUEST) |
| 55 | 149 |
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150 def getKmlData(self, schema, table, ids=None, sortBy=1, gisIdField=None, latField=None, lonField=None, geomField="point", colorField="red_big"): |
| 55 | 151 """returns data structure for KML template""" |
| 249 | 152 logging.debug("getKMLdata gid=%s lat=%s lon=%s sortBy=%s geom=%s color=%s"%(gisIdField,latField,lonField,sortBy,geomField,colorField)) |
| 148 | 153 if geomField is None: |
| 154 geomField="point" | |
| 155 if colorField is None: | |
| 156 colorField="red" | |
| 55 | 157 # Mapping a set of points from table-based SQL-query: |
| 158 qstr='SELECT * FROM "%s"."%s"'%(schema,table) | |
| 159 idList = None | |
| 160 if ids is not None: | |
| 161 qstr += ' WHERE ' | |
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162 if schema=='mpdl': |
| 55 | 163 qstr += 'mpdl_xmlsource_id IN (' |
| 164 else: | |
| 165 qstr += 'CAST(id AS text) IN (' | |
| 166 | |
| 167 idList = ids.split(",") | |
| 168 qstr += ','.join(['%s' for i in idList]) | |
| 169 qstr += ')' | |
| 170 | |
| 58 | 171 if sortBy: |
| 172 # add sort clause | |
| 59 | 173 if sortBy == 1: |
| 174 qstr += ' ORDER BY 1' | |
| 249 | 175 elif sortBy == 'Default': |
| 176 qstr += ' ORDER BY 1' | |
|
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177 elif sortBy == 'undefined': |
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178 qstr += ' ORDER BY 1' |
| 59 | 179 else: |
| 180 # TODO: proper quoting for names | |
| 181 qstr += ' ORDER BY "%s"'%sortBy.replace('"','') | |
| 245 | 182 bad_luck=True |
| 183 bl_counter=0 | |
| 184 while (bad_luck): | |
| 185 try: | |
| 186 data = self.executeSQL(qstr,idList) | |
| 187 bad_luck=False | |
| 188 bl_counter=bl_counter+1 | |
| 189 except: | |
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190 if (bl_counter<5): |
| 245 | 191 bad_luck=True |
| 192 else: | |
| 193 bad_luck=False | |
| 194 | |
| 55 | 195 fieldMap = self.getFieldNameMap(data['fields']) |
| 247 | 196 if (geomField!="point"): |
| 197 try: | |
| 198 geomstr='select astext(st_simplify(transform(the_geom,4326),0.05)) from "%s"."%s"'%(schema,table) | |
| 233 | 199 geomdata=self.executeSQL(geomstr) |
| 247 | 200 teststr=geomdata.values()[1][0] |
| 201 if (teststr == (u'MULTIPOLYGON EMPTY',)): | |
| 202 geomstr='select astext(st_simplify(transform(the_geom,2333),0.05)) from "%s"."%s"'%(schema,table) | |
| 203 geomdata=self.executeSQL(geomstr) | |
| 233 | 204 |
| 207 | 205 except: |
| 247 | 206 try: |
| 207 geomstr='select chgis.astext(chgis.st_simplify(chgis.transform(the_geom,4326),0.05)) from "%s"."%s"'%(schema,table) | |
| 208 geomdata=self.executeSQL(geomstr) | |
| 209 except: | |
| 210 geomdata=None | |
| 117 | 211 |
| 233 | 212 if (gisIdField is None) and (latField is None or lonField is None) and geomField=='point': |
| 55 | 213 # no fields given - choose automagically |
| 93 | 214 sql = 'SELECT field_name FROM public.gis_table_meta_rows WHERE table_name = %s and gis_type = %s' |
| 55 | 215 # gis id in metadata first |
| 61 | 216 res = self.executeSQL(sql, (table,'gis_id')) |
| 55 | 217 if len(res['rows']) > 0: |
| 218 gisIdField = res['rows'][0][0] | |
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219 # latitude in metadata |
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220 res = self.executeSQL(sql, (table,'coord_lat')) |
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221 if len(res['rows']) > 0: |
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222 latField = res['rows'][0][0] |
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223 # longitude in metadata |
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224 res = self.executeSQL(sql, (table,'coord_lon')) |
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225 if len(res['rows']) > 0: |
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226 lonField = res['rows'][0][0] |
| 93 | 227 |
| 233 | 228 if (gisIdField is None) and (latField is None or lonField is None) and geomField=='point': |
| 93 | 229 logging.warning("no entry in metadata table for table %s" % table) |
| 230 # still no fields - try field names | |
| 231 if 'latitude' in fieldMap and 'longitude' in fieldMap: | |
| 232 latField = 'latitude' | |
| 233 lonField = 'longitude' | |
| 234 elif 'x_coord' in fieldMap and 'y_coord' in fieldMap: | |
| 235 latField = 'x_coord' | |
| 236 lonField = 'y_coord' | |
| 237 else: | |
| 238 logging.error("getKMLdata unable to find position fields") | |
| 239 return None | |
| 240 | |
| 55 | 241 |
| 242 # convert field names to row indexes | |
| 243 gisIdIdx = fieldMap.get(gisIdField,None) | |
| 244 latIdx = fieldMap.get(latField,None) | |
| 245 lonIdx = fieldMap.get(lonField,None) | |
| 117 | 246 the_geom=fieldMap.get("the_geom",None) |
| 55 | 247 logging.debug("gisidfield=%s idx=%s"%(gisIdField,gisIdIdx)) |
| 248 | |
| 249 # convert data | |
| 250 kmlData = [] | |
| 151 | 251 geom_list = {} |
| 233 | 252 try: |
| 253 if geomField=='poly' or geomField=='line': | |
| 150 | 254 geom_list=geomdata.values()[1] |
| 233 | 255 except: |
| 256 return "no geomdata in RestDbGisApi Line 254" | |
| 150 | 257 data_list=data['rows'] |
| 258 for k in range (len(data_list)): | |
| 259 dataset = data_list[k] | |
| 260 if len(geom_list)>k: | |
| 261 geom_value = geom_list[k] | |
| 262 | |
| 263 | |
| 264 | |
| 265 # for dataset in data['rows']: | |
| 65 | 266 xCoord = 0.0 |
| 267 yCoord = 0.0 | |
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268 if gisIdIdx != None and geomField=='point' : |
| 55 | 269 gisID = dataset[gisIdIdx] |
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270 if gisID != " " and gisID != " 0": |
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271 coords=self.getPointForChGisId(gisID) |
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272 if coords!=None: |
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273 xCoord=coords[0] |
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274 yCoord=coords[1] |
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275 elif latIdx != None: |
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276 xCoord = dataset[lonIdx] |
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277 yCoord = dataset[latIdx] |
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278 elif latIdx != None: |
| 55 | 279 xCoord = dataset[lonIdx] |
| 280 yCoord = dataset[latIdx] | |
| 281 | |
| 233 | 282 elif geomField=='point' : |
| 55 | 283 logging.error("getKMLdata unable to find position") |
| 284 return None | |
| 285 | |
| 233 | 286 if geomField=='point' : |
| 287 if float(xCoord) == 0.0: | |
| 55 | 288 continue |
| 233 | 289 if float(yCoord) == 0.0: |
| 55 | 290 continue |
| 291 | |
| 292 kmlPlace = {} | |
| 293 | |
| 294 # description | |
| 295 desc = '' | |
| 150 | 296 |
| 297 | |
| 298 for i in range (len(dataset)): | |
| 299 value = dataset[i] | |
| 300 | |
| 55 | 301 name = data['fields'][i][0] |
| 58 | 302 #logging.debug("value=%s"%value) |
| 150 | 303 if name != 'the_geom': |
| 304 if value != None: | |
| 57 | 305 #if name.find('name')>-1: |
| 306 # desc += "<name>%s</name>\n"%value | |
| 307 # continue | |
| 308 #elif name.find('place')>-1: | |
| 309 # desc += "<name>%s</name>\n"%value | |
| 310 # continue | |
| 55 | 311 |
| 312 val = "%s: %s"%(name, value) | |
| 187 | 313 value=unicode(value) |
| 188 | 314 |
| 315 # If there is a link within the description data, create a valid href | |
| 191 | 316 if value.find('http://')>-1: |
| 317 link_str_beg=value.find('http://') | |
| 318 link_str_end = -1 | |
| 319 link_str_end0=value.find(' ',link_str_beg) | |
| 320 link_str_end1=value.find('>',link_str_beg) | |
| 321 if link_str_end0 <link_str_end1: | |
| 322 link_str_end=link_str_end0 | |
| 323 else: | |
| 324 link_str_end=link_str_end1 | |
| 325 if link_str_end > -1: | |
| 326 link_str=value[link_str_beg:link_str_end] | |
| 207 | 327 val =name+": "+value[0:link_str_beg]+'<a href=' + link_str + '> ' + link_str.replace('http://','') + ' </a>' + value[link_str_end:] |
| 191 | 328 else: |
| 329 link_str=value[link_str_beg:] | |
| 207 | 330 val =name+': '+value[0:link_str_beg]+'<a href=' + link_str + '> ' + link_str.replace('http://','') + ' </a>' |
| 188 | 331 |
| 332 | |
| 57 | 333 #desc += kmlEncode(val) |
| 334 desc += val | |
| 55 | 335 desc += '<br/>\n' |
| 336 | |
| 57 | 337 #kmlPlace['description'] = "<![CDATA[%s]]>"%desc |
| 150 | 338 |
| 124 | 339 |
| 133 | 340 if geomField=='point': |
| 207 | 341 kmlPlace['description'] = "<![CDATA[%s]]>"%desc |
| 193 | 342 |
| 133 | 343 kmlPlace['icon'] = '#marker_icon_'+colorField |
| 344 kmlPlace['coord_x'] = str(xCoord) | |
| 345 kmlPlace['coord_y'] = str(yCoord) | |
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346 kmlPlace['coord_z'] = '50' |
| 134 | 347 kmlData.append(kmlPlace) |
| 233 | 348 if (geomField=='poly' or geomField=='line') and len(geomdata)>0: |
| 150 | 349 polys=str(geom_value).split('(') |
| 144 | 350 aaa=len(polys) |
| 142 | 351 for poly in polys: |
| 150 | 352 kmlPlace = {} |
| 353 kmlPlace['description'] = desc | |
| 152 | 354 coords=poly.replace(')','').replace("'","").split(',') |
| 150 | 355 coord_string='' |
| 144 | 356 if len(coords)>1: |
| 146 | 357 for coord in coords: |
| 358 coord=coord.split(' ') | |
| 359 try: | |
| 360 x_coord=coord[0] | |
| 361 y_coord=coord[1] | |
| 362 except: | |
| 363 break | |
| 150 | 364 coord_string+=x_coord+','+y_coord+','+'0 ' |
| 365 if coord_string != '': | |
| 366 kmlPlace['LinearRing']=coord_string | |
| 245 | 367 kmlPlace['lineColor']='#'+colorField+'_'+geomField |
| 150 | 368 kmlData.append(kmlPlace) |
| 55 | 369 #logging.debug("kmlData=%s"%(repr(kmlData))) |
| 370 return kmlData | |
| 58 | 371 |
| 372 def getPointForChGisId(self, gis_id): | |
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373 """returns coordinate pair for given gis_id""" # gets called by getKml |
| 59 | 374 def getPoint(id): |
| 247 | 375 str_gis_id=str(id).split('.')[0] |
| 376 sql="SELECT x_coord,y_coord FROM chgis.chgis_coords WHERE gis_id LIKE CAST('%s' AS text)"%str(str_gis_id) | |
| 377 # logging.error("sql:",sql) | |
| 378 # res = self.executeSQL(sql, (str(str_gis_id),)) | |
| 379 res = self.executeSQL(sql) | |
| 59 | 380 if len(res['rows']) > 0: |
| 381 return res['rows'][0] | |
| 247 | 382 else: |
| 383 #logging.error("error on sql:",sql%(str(str_gis_id),)) | |
| 384 return None | |
| 55 | 385 |
| 58 | 386 if gis_id is None or gis_id == "": |
| 387 return None | |
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388 if len(gis_id) < 4: |
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389 return None |
| 58 | 390 |
| 59 | 391 # try gis_id |
| 392 coords = getPoint(gis_id) | |
| 393 if coords is None: | |
| 58 | 394 # try to clean gis_id... |
| 247 | 395 gis_id_short = re.sub(r'[^0-9]','',gis_id) |
| 58 | 396 # try again |
| 247 | 397 coords = getPoint(gis_id_short) |
| 59 | 398 if coords is None: |
| 247 | 399 #logging.error("CH-GIS ID %s not found!"%str(gis_id_short)) |
| 400 | |
| 401 # this will ask the Harvard-Service for the Coords of this gis_id and write it into our coords-list | |
| 402 try: | |
| 403 coords=self.getCoordsFromREST_gisID(gis_id) | |
| 404 #logging.error("coords from REST"%str(coords)) | |
| 405 except: | |
| 406 logging.error("coords from REST did not work for "%str(gis_id)) | |
| 407 if coords[0] is None: | |
| 408 logging.error("CH-GIS ID %s not found in Harvard"%str(gis_id)) | |
| 409 else: | |
| 410 try: | |
| 411 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))" | |
| 412 SQL_analyze="ANALYZE chgis.chgis_coords" | |
| 413 self.executeSQL(SQL,(str(gis_id_short),str(coords[0][1]),str(coords[0][0])),False) | |
| 414 self.executeSQL(SQL_analyze,(),False) | |
| 415 except: | |
| 416 logging.error("Could not write into chgis_coords: ", str(gis_id_short)) | |
| 417 logging.error("coords[0][0]:"%coords[0][0]) | |
| 418 logging.error("coords[0][1]:"%coords[0][1]) | |
| 419 return coords[0] | |
| 420 coords_test = getPoint(gis_id) | |
| 421 #logging.error("SQL results now:", str(coords_test)) | |
| 422 return coords[0] | |
| 58 | 423 |
| 59 | 424 return coords |
| 425 | |
| 55 | 426 |
| 59 | 427 ## legacy methods... |
| 428 | |
|
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429 def getKmlUrl(self,schema='chgis',table='mpdl',args={'doc':None,'id':None}): |
| 59 | 430 logging.debug("getKmlUrl") |
|
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431 id=args.get('id') |
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432 doc=args.get('doc') |
| 59 | 433 data = self.getDataForGoogleMap(schema,table,id,doc) |
| 434 kml=self.getKMLname(data=data,table=table) | |
| 435 baseUrl = self.absolute_url() | |
| 436 return "%s/daten/%s"%(baseUrl,kml) | |
| 437 | |
| 438 def getDataForGoogleMap(self,schema='chgis',table='mpdl',id=None,doc=None): | |
| 439 logging.debug("getDataForGoogleMap") | |
| 440 qstr="SELECT * FROM "+schema+"."+table | |
| 441 try: | |
| 442 if id is not None: | |
| 443 qstr=qstr+" WHERE " | |
| 444 for id_item in id.split(","): | |
| 445 if table=='mpdl': | |
| 446 qstr=qstr+" mpdl_xmlsource_id = '"+id_item+ "' OR" | |
| 447 else: | |
| 448 qstr=qstr+" cast(id as text) LIKE '"+id_item+ "' OR" | |
| 449 qstr=str(qstr).rsplit(" ",1)[0] #to remove last " and " | |
| 450 data=self.ZSQLSimpleSearch(qstr) | |
| 451 return data | |
| 452 except: | |
| 453 return qstr | |
| 55 | 454 |
| 455 | |
| 43 | 456 def getKMLname(self,data=[],table=""): |
| 457 logging.debug("getKMLname") | |
| 458 #session=context.REQUEST.SESSION | |
| 109 | 459 kml4Marker="<kml xmlns=\'http://www.opengis.net/kml/2.2\'><Document>" |
| 460 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" | |
| 461 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" | |
| 462 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" | |
| 463 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" | |
| 464 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 | 465 initializeStringForGoogleMaps="" |
| 466 #doLine=container.getVar('doLine') | |
| 467 # Mapping a set of points from table-based SQL-query: | |
| 468 if data!=None: | |
| 469 try: | |
| 470 SQL='SELECT "attribute with gis_id" FROM public.metadata WHERE tablename = %s' | |
| 471 res = self.executeSQL(SQL, (table,)) | |
| 472 gisIDattribute = res['rows'][0][0] | |
| 473 except: | |
| 474 return "table not registered within metadata" | |
| 475 | |
| 476 for dataset in data: | |
| 477 try: | |
| 478 xCoord=getattr(dataset,'longitude') | |
| 479 yCoord=getattr(dataset,'latitude') | |
| 480 except: | |
| 481 try: | |
| 482 xCoord=getattr(dataset,'x_coord') | |
| 483 yCoord=getattr(dataset,'y_coord') | |
| 484 except: | |
| 485 #try: | |
| 486 gisID=getattr(dataset,gisIDattribute) | |
| 487 coords=self.getPoint4GISid(gisID) | |
| 488 if coords!=None: | |
| 489 xCoord=coords[0] | |
| 490 yCoord=coords[1] | |
| 491 # except: | |
| 492 # return "no coordinates found" | |
| 493 | |
| 494 if float(xCoord)!=0: | |
| 495 if float(yCoord)!=0: | |
| 496 kml4Marker=kml4Marker+"<Placemark>" | |
| 497 kml4Marker=kml4Marker+"<description> <![CDATA[<b>" | |
| 498 for values in dataset: | |
| 55 | 499 #logging.debug("values=%s"%repr(values)) |
| 43 | 500 if values != (None, None): |
| 501 if str(values).find('name')>-1: | |
| 502 kml4Marker=kml4Marker+"<name>"+str(values[1])+"</name>\n" | |
| 503 continue | |
| 504 elif str(values).find('place')>-1: | |
| 505 kml4Marker=kml4Marker+"<name>"+str(values[1])+"</name>\n" | |
| 506 continue | |
| 507 | |
| 508 kml4Marker=kml4Marker+str(values)+": " | |
| 509 attribute_string=str(values).replace("'","__Apostroph__") | |
| 510 attribute_string=str(attribute_string).replace('"','__DoubleApostroph__') | |
| 511 attribute_string=str(attribute_string).replace(';','__$$__') | |
| 512 attribute_string=str(attribute_string).replace('&','&') | |
| 513 if str(attribute_string).find('http')>-1: | |
| 207 | 514 attribute_string='<A HREF=' + str(attribute_string) + ' target="_blank">' + str(attribute_string) + '</A>' |
| 43 | 515 kml4Marker=kml4Marker+attribute_string+"</a><br>\n" |
| 516 | |
| 517 kml4Marker=kml4Marker+"]]></description>\n" | |
| 117 | 518 kml4Marker=kml4Marker+"<styleURL>#marker_icon_red</styleURL>\n" |
| 43 | 519 kml4Marker=kml4Marker+"<Point>" |
| 520 | |
| 521 kml4Marker=kml4Marker+"<coordinates>"+str(xCoord)+","+str(yCoord)+",0</coordinates>\n" | |
| 522 kml4Marker=kml4Marker+"</Point>\n" | |
| 523 kml4Marker=kml4Marker+"</Placemark>\n" | |
| 524 | |
| 525 kml4Marker=kml4Marker+"</Document>\n</kml>" | |
| 526 kmlFileName="marker"+str(time.time())+".kml" | |
| 527 | |
| 528 #kml4Marker=str(kml4Marker).replace('&','$$') | |
| 529 #kml4Marker=str(kml4Marker).replace(';','__$$__') | |
| 530 #kml4Marker=str(kml4Marker).replace('#','__SHARP__') | |
| 531 isLoadReady='false' | |
| 532 while isLoadReady=='false': | |
| 533 isLoadReady=self.RESTwrite2File(self.daten,kmlFileName,kml4Marker) | |
| 534 | |
| 535 return kmlFileName | |
| 207 | 536 |
| 537 def trydatahas_key(self,data,index,key_string): | |
| 538 try: | |
| 539 return data[index].has_key(key_string) | |
| 540 except: | |
| 541 return 'false' | |
| 43 | 542 |
| 44 | 543 # def getGoogleMapString(self,kml): |
| 544 # logging.debug("getGoogleMapString") | |
| 545 # printed= '<body %s> '%kml +"""\n <div id="map_canvas" style="width: 98%; height: 95%"> </div> \n </body>" \n </html>""" | |
| 546 # return printed | |
| 43 | 547 |
| 548 def getPoint4GISid(self,gis_id): | |
| 549 j=0 | |
| 550 coords=(0,0) | |
| 551 if gis_id != None: | |
| 552 while (True): | |
| 553 j=j+1 | |
| 554 if (j>100): # FJK: just to prevent endless loops | |
| 555 break | |
| 556 if (gis_id.isdigit()): # FJK: regular exit from while-loop | |
| 557 break | |
| 558 else: | |
| 559 gis_id=gis_id.strip('abcdefghijklmnopqrstuvwxyz_') # FJK: to strip all letters | |
| 560 gis_id=gis_id.strip() # FJK: to strip all whitespaces | |
| 561 resultpoint = [0,0] | |
| 562 results = None | |
| 563 try: | |
| 564 if int(gis_id)>0: | |
| 565 SQL="SELECT x_coord,y_coord FROM chgis.chgis_coords WHERE gis_id LIKE cast("+ str(gis_id) +" as text);" | |
| 566 results=self.ZSQLSimpleSearch(SQL) | |
| 567 #print results | |
| 568 if results != None: | |
| 569 for result in results: | |
| 570 resultpoint=[getattr(result,str('x_coord')),getattr(result,str('y_coord'))] | |
| 571 if resultpoint !=[0,0]: | |
| 572 return resultpoint | |
| 573 else: | |
| 247 | 574 coords=self.getCoordsFromREST_gisID(gis_id) |
| 575 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 | 576 returnstring=self.ZSQLSimpleSearch(SQL) |
| 577 return coords[0] | |
| 578 except: | |
| 579 return "gis_id not to interpretable:"+str(gis_id) | |
| 580 else: | |
| 581 return coords[0] | |
| 582 | |
| 583 def getCoordsFromREST_gisID(self,gis_id): | |
| 247 | 584 gis_id=gis_id.strip() |
| 43 | 585 coordlist=[] |
| 586 i=0 | |
| 587 while (i<5 and coordlist==[]): | |
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588 urlinfo=urlFunctions.zUrlopenInfo(self,"http://chgis.hmdc.harvard.edu/xml/id/"+gis_id) |
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589 urlinfoLength=urlinfo.get('content-length') |
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590 if int(urlinfoLength)<500: |
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591 urlresponse=urlFunctions.zUrlopenRead(self,"http://chgis.hmdc.harvard.edu/xml/id/cts_"+gis_id) |
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592 else: |
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593 urlresponse=urlFunctions.zUrlopenRead(self,"http://chgis.hmdc.harvard.edu/xml/id/"+gis_id) |
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594 urlresponseString=urlFunctions.zUrlopenParseString(self,urlresponse) |
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595 baseDocElement= urlFunctions.zUrlopenDocumentElement(self,urlresponseString) |
| 247 | 596 childnodes=urlFunctions.zUrlopenChildNodes(self,baseDocElement) |
| 597 itemnodes=urlFunctions.zUrlopenGetElementsByTagName(self,baseDocElement,'item') | |
| 598 itemspatialnodes=None | |
| 599 | |
| 600 for i in range(0,urlFunctions.zUrlopenLength(self,itemnodes)): | |
| 601 itemnode=urlFunctions.zUrlopenGetItem(self,itemnodes,i) | |
| 602 itemspatialnodes=urlFunctions.zUrlopenGetElementsByTagName(self,itemnode,'spatial') | |
| 603 if itemspatialnodes is not None: | |
| 604 for j in range(0,urlFunctions.zUrlopenLength(self,itemspatialnodes)): | |
| 605 coord=[] | |
| 606 itemspatialnode= urlFunctions.zUrlopenGetItem(self,itemspatialnodes,j) | |
| 607 itemspatiallatnodes=urlFunctions.zUrlopenGetElementsByTagName(self,itemspatialnode,'degrees_latitude') | |
| 608 for k in range(0,urlFunctions.zUrlopenLength(self,itemspatiallatnodes)): | |
| 609 itemspatiallatnode= urlFunctions.zUrlopenGetItem(self,itemspatiallatnodes,k) | |
| 610 coord.append(urlFunctions.zUrlopenGetTextData(self,itemspatiallatnode)) | |
| 611 itemspatiallngnodes=urlFunctions.zUrlopenGetElementsByTagName(self,itemspatialnode,'degrees_longitude') | |
| 612 for k in range(0,urlFunctions.zUrlopenLength(self,itemspatiallngnodes)): | |
| 613 itemspatiallngnode= urlFunctions.zUrlopenGetItem(self,itemspatiallngnodes,k) | |
| 614 coord.append(urlFunctions.zUrlopenGetTextData(self,itemspatiallngnode)) | |
| 615 coordlist.append(coord) | |
| 616 gis_id= "_"+gis_id | |
| 43 | 617 return coordlist |
| 618 | |
| 619 # End for GoogleMaps creation | |
| 620 | |
| 621 def RESTwrite2File(self,datadir, name,text): | |
| 622 logging.debug("RESTwrite2File datadir=%s name=%s"%(datadir,name)) | |
| 623 try: | |
| 624 import cStringIO as StringIO | |
| 625 except: | |
| 626 import StringIO | |
| 627 | |
| 628 # make filehandle from string | |
| 629 textfile = StringIO.StringIO(text) | |
| 630 fileid=name | |
| 631 if fileid in datadir.objectIds(): | |
| 632 datadir.manage_delObjects(fileid) | |
| 633 fileInZope=datadir.manage_addFile(id=fileid,file=textfile) | |
| 634 return "Write successful" | |
| 635 | |
| 636 def manage_editRestDbGisApi(self, title=None, connection_id=None, | |
| 637 REQUEST=None): | |
| 638 """Change the object""" | |
| 639 if title is not None: | |
| 640 self.title = title | |
| 641 | |
| 642 if connection_id is not None: | |
| 643 self.connection_id = connection_id | |
| 644 | |
| 645 #checkPermission=getSecurityManager().checkPermission | |
| 646 REQUEST.RESPONSE.redirect('manage_main') | |
| 647 | |
| 648 | |
| 649 manage_addRestDbGisApiForm=PageTemplateFile('zpt/addRestDbGisApi',globals()) | |
| 650 | |
| 651 def manage_addRestDbGisApi(self, id, title='', label='', description='', | |
| 652 createPublic=0, | |
| 653 createUserF=0, | |
| 654 REQUEST=None): | |
| 655 """Add a new object with id *id*.""" | |
| 656 | |
| 657 ob=RestDbGisApi(str(id),title) | |
| 658 self._setObject(id, ob) | |
| 659 | |
| 660 #checkPermission=getSecurityManager().checkPermission | |
| 661 REQUEST.RESPONSE.redirect('manage_main') | |
| 662 | |
| 247 | 663 |
| 664 | |
| 665 |