Mercurial > hg > ChinaGisRestApi
annotate RestDbInterface.py @ 22:1a4b56716902
NEW - # 12: create table and upload data
https://it-dev.mpiwg-berlin.mpg.de/tracs/GIS/ticket/12
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| author | casties |
|---|---|
| date | Thu, 19 Aug 2010 14:30:51 +0200 |
| parents | a67b7c1f7ec5 |
| children | 860ec92f99df |
| rev | line source |
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1 ''' |
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2 Created on 19.5.2010 |
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3 |
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4 @author: casties |
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5 ''' |
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6 |
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7 from OFS.Folder import Folder |
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8 from Products.PageTemplates.PageTemplateFile import PageTemplateFile |
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9 from Products.ZSQLExtend import ZSQLExtend |
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10 import logging |
| 15 | 11 import re |
| 16 | 12 import psycopg2 |
| 18 | 13 import json |
| 19 | 14 import time |
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15 |
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16 from zope.interface import implements |
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17 from zope.publisher.interfaces import IPublishTraverse |
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18 from ZPublisher.BaseRequest import DefaultPublishTraverse |
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19 #from zope.publisher.interfaces import NotFound |
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20 #from zope.app import zapi |
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21 #from zope.component import queryMultiAdapter |
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22 import Shared.DC.ZRDB.DA |
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23 from Products.ZSQLMethods.SQL import SQLConnectionIDs |
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24 |
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25 |
| 16 | 26 def getTextFromNode(node): |
| 14 | 27 """get the cdata content of a XML node""" |
| 16 | 28 if node is None: |
| 14 | 29 return "" |
| 16 | 30 |
| 31 if isinstance(node, list): | |
| 32 nodelist = node | |
| 33 else: | |
| 34 nodelist=node.childNodes | |
| 35 | |
| 14 | 36 rc = "" |
| 37 for node in nodelist: | |
| 38 if node.nodeType == node.TEXT_NODE: | |
| 39 rc = rc + node.data | |
| 40 return rc | |
| 41 | |
| 16 | 42 def sqlName(s,lc=True): |
| 43 """returns restricted ASCII-only version of string""" | |
| 15 | 44 if s is None: |
| 45 return "" | |
| 46 | |
| 47 # all else -> "_" | |
| 16 | 48 s = re.sub(r'[^A-Za-z0-9_]','_',s) |
| 15 | 49 if lc: |
| 50 return s.lower() | |
| 51 | |
| 52 return s | |
| 14 | 53 |
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54 class RestDbInterface(Folder): |
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55 """Object for RESTful database queries |
| 7 | 56 path schema: /db/{schema}/{table}/ |
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57 omitting table gives a list of schemas |
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58 omitting table and schema gives a list of schemas |
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59 """ |
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60 implements(IPublishTraverse) |
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61 |
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62 meta_type="RESTdb" |
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63 manage_options=Folder.manage_options+( |
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64 {'label':'Config','action':'manage_editRestDbInterfaceForm'}, |
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65 ) |
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66 |
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67 # management templates |
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68 manage_editRestDbInterfaceForm=PageTemplateFile('zpt/editRestDbInterface',globals()) |
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69 |
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70 # data templates |
| 8 | 71 XML_index = PageTemplateFile('zpt/XML_index', globals()) |
| 72 XML_schema = PageTemplateFile('zpt/XML_schema', globals()) | |
| 73 XML_schema_table = PageTemplateFile('zpt/XML_schema_table', globals()) | |
| 74 HTML_index = PageTemplateFile('zpt/HTML_index', globals()) | |
| 75 HTML_schema = PageTemplateFile('zpt/HTML_schema', globals()) | |
| 76 HTML_schema_table = PageTemplateFile('zpt/HTML_schema_table', globals()) | |
| 22 | 77 JSONHTML_index = PageTemplateFile('zpt/JSONHTML_index', globals()) |
| 78 JSONHTML_schema = PageTemplateFile('zpt/JSONHTML_schema', globals()) | |
| 79 JSONHTML_schema_table = PageTemplateFile('zpt/JSONHTML_schema_table', globals()) | |
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80 |
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81 |
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82 |
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83 def __init__(self, id, title, connection_id=None): |
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84 """init""" |
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85 self.id = id |
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86 self.title = title |
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87 # database connection id |
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88 self.connection_id = connection_id |
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89 # create template folder |
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90 self.manage_addFolder('template') |
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91 |
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92 |
| 22 | 93 def getJsonString(self,object): |
| 94 """returns a JSON formatted string from object""" | |
| 95 return json.dumps(object) | |
| 96 | |
| 17 | 97 def getCursor(self,autocommit=True): |
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98 """returns fresh DB cursor""" |
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99 conn = getattr(self,"_v_database_connection",None) |
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100 if conn is None: |
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101 # create a new connection object |
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102 try: |
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103 if self.connection_id is None: |
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104 # try to take the first existing ID |
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105 connids = SQLConnectionIDs(self) |
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106 if len(connids) > 0: |
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107 connection_id = connids[0][0] |
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108 self.connection_id = connection_id |
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109 logging.debug("connection_id: %s"%repr(connection_id)) |
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110 |
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111 da = getattr(self, self.connection_id) |
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112 da.connect('') |
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113 # we copy the DAs database connection |
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114 conn = da._v_database_connection |
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115 #conn._register() # register with the Zope transaction system |
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116 self._v_database_connection = conn |
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117 except Exception, e: |
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118 raise IOError("No database connection! (%s)"%str(e)) |
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119 |
| 5 | 120 cursor = conn.getcursor() |
| 17 | 121 if autocommit: |
| 122 # is there a better version to get to the connection? | |
| 123 cursor.connection.set_isolation_level(psycopg2.extensions.ISOLATION_LEVEL_AUTOCOMMIT) | |
| 124 | |
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125 return cursor |
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126 |
| 17 | 127 def executeSQL(self, query, args=None, hasResult=True, autocommit=True): |
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128 """execute query with args on database and return all results. |
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129 result format: {"fields":fields, "rows":data}""" |
| 16 | 130 logging.debug("executeSQL query=%s args=%s"%(query,args)) |
| 17 | 131 cur = self.getCursor(autocommit=autocommit) |
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132 cur.execute(query, args) |
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133 # description of returned fields |
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134 fields = cur.description |
| 17 | 135 if hasResult: |
| 136 # get all data in an array | |
| 137 data = cur.fetchall() | |
| 138 cur.close() | |
| 139 return {"fields":fields, "rows":data} | |
| 140 else: | |
| 141 cur.close() | |
| 142 return None | |
| 16 | 143 |
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144 |
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145 def publishTraverse(self,request,name): |
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146 """change the traversal""" |
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147 # get stored path |
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148 path = request.get('restdb_path', []) |
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149 logging.debug("publishtraverse: name=%s restdb_path=%s"%(name,path)) |
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150 |
| 13 | 151 if name in ("index_html", "PUT"): |
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152 # end of traversal |
| 13 | 153 if request.get("method") == "POST" and request.get("action",None) == "PUT": |
| 154 # fake PUT by POST with action=PUT | |
| 155 name = "PUT" | |
| 156 | |
| 157 return getattr(self, name) | |
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158 #TODO: should we check more? |
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159 else: |
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160 # traverse |
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161 if len(path) == 0: |
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162 # first segment |
| 8 | 163 if name == 'db': |
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164 # virtual path -- continue traversing |
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165 path = [name] |
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166 request['restdb_path'] = path |
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167 else: |
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168 # try real path |
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169 tr = DefaultPublishTraverse(self, request) |
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170 ob = tr.publishTraverse(request, name) |
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171 return ob |
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172 else: |
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173 path.append(name) |
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174 |
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175 # continue traversing |
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176 return self |
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177 |
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178 def index_html(self,REQUEST,RESPONSE): |
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179 """index method""" |
| 8 | 180 # ReST path was stored in request |
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181 path = REQUEST.get('restdb_path',[]) |
| 19 | 182 |
| 8 | 183 # type and format are real parameter |
| 184 format = REQUEST.get('format','HTML').upper() | |
| 185 type = REQUEST.get('type',None) | |
| 19 | 186 |
| 187 # id and doc are used for GoogleMaps content | |
| 188 id = REQUEST.get('id',[]) | |
| 189 doc = REQUEST.get('doc',None) | |
| 190 | |
| 8 | 191 logging.debug("index_html path=%s format=%s type=%s"%(path,format,type)) |
| 192 | |
| 193 if type is not None: | |
| 194 # non-empty type -- look for template | |
| 195 pt = getattr(self.template, "%s_%s"%(format,type), None) | |
| 196 if pt is not None: | |
| 197 return pt(format=format,type=type,path=path) | |
| 198 | |
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199 if len(path) == 1: |
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200 # list of schemas |
| 22 | 201 return self.showListOfSchemas(format=format,REQUEST=REQUEST,RESPONSE=RESPONSE) |
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202 elif len(path) == 2: |
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203 # list of tables |
| 22 | 204 return self.showListOfTables(format=format,schema=path[1],REQUEST=REQUEST,RESPONSE=RESPONSE) |
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205 elif len(path) == 3: |
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206 # table |
| 22 | 207 return self.showTable(format=format,schema=path[1],table=path[2],REQUEST=REQUEST,RESPONSE=RESPONSE) |
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208 |
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209 # don't know what to do |
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210 return str(REQUEST) |
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211 |
| 12 | 212 def PUT(self, REQUEST, RESPONSE): |
| 213 """ | |
| 214 Implement WebDAV/HTTP PUT/FTP put method for this object. | |
| 215 """ | |
| 13 | 216 logging.debug("RestDbInterface PUT") |
| 217 #logging.debug("req=%s"%REQUEST) | |
| 12 | 218 #self.dav__init(REQUEST, RESPONSE) |
| 219 #self.dav__simpleifhandler(REQUEST, RESPONSE) | |
| 13 | 220 # ReST path was stored in request |
| 221 path = REQUEST.get('restdb_path',[]) | |
| 222 if len(path) == 3: | |
| 223 schema = path[1] | |
| 224 tablename = path[2] | |
| 225 file = REQUEST.get("create_table_file",None) | |
| 226 if file is None: | |
| 227 RESPONSE.setStatus(400) | |
| 228 return | |
| 229 | |
| 230 logging.debug("put with schema=%s table=%s file=%s"%(schema,tablename,file)) | |
| 17 | 231 ret = self.createTableFromXML(schema, tablename, file) |
| 20 | 232 resultType = REQUEST.get("result_type","application/json") |
| 233 if resultType == "application/json": | |
| 234 RESPONSE.setHeader("Content-Type", "application/json") | |
| 235 json.dump(ret, RESPONSE) | |
| 236 elif resultType == "html/json": | |
| 237 RESPONSE.setHeader("Content-Type", "text/html") | |
| 238 RESPONSE.write("<html>\n<body>\n<pre>") | |
| 239 json.dump(ret, RESPONSE) | |
| 240 RESPONSE.write("</pre>\n</body>\n</html>") | |
| 241 | |
| 13 | 242 |
| 243 else: | |
| 244 # 400 Bad Request | |
| 245 RESPONSE.setStatus(400) | |
| 246 return | |
| 12 | 247 |
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248 |
| 22 | 249 def showTable(self,format='XML',schema='public',table=None,REQUEST=None,RESPONSE=None): |
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250 """returns PageTemplate with tables""" |
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251 logging.debug("showtable") |
| 22 | 252 # GIS gets special treatment |
| 253 if format=="GIS": | |
| 254 return self.showGoogleMap(schema=path[1],table=path[2],id=id,doc=doc) | |
| 255 | |
| 256 # JSON gets special treatment | |
| 257 if format == "JSON": | |
| 258 data = self.getListOfTables(schema) | |
| 259 RESPONSE.setHeader("Content-Type", "application/json") | |
| 260 json.dump(data, RESPONSE) | |
| 261 return | |
| 262 | |
| 263 # everything else has its own template | |
| 9 | 264 pt = getattr(self.template, '%s_schema_table'%format, None) |
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265 if pt is None: |
| 9 | 266 return "ERROR!! template %s_schema_table not found"%format |
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267 |
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268 data = self.getTable(schema,table) |
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269 return pt(data=data,tablename=table) |
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270 |
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271 def getTable(self,schema='public',table=None,username='guest'): |
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272 """return table data""" |
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273 logging.debug("gettable") |
| 16 | 274 data = self.executeSQL('select * from "%s"."%s"'%(schema,table)) |
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275 return data |
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276 |
| 22 | 277 def showListOfTables(self,format='XML',schema='public',REQUEST=None,RESPONSE=None): |
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278 """returns PageTemplate with list of tables""" |
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279 logging.debug("showlistoftables") |
| 22 | 280 # JSON gets special treatment |
| 281 if format == "JSON": | |
| 282 data = self.getListOfTables(schema) | |
| 283 RESPONSE.setHeader("Content-Type", "application/json") | |
| 284 json.dump(data, RESPONSE) | |
| 285 return | |
| 286 | |
| 287 # everything else has its own template | |
| 9 | 288 pt = getattr(self.template, '%s_schema'%format, None) |
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289 if pt is None: |
| 9 | 290 return "ERROR!! template %s_schema not found"%format |
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291 |
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292 data = self.getListOfTables(schema) |
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293 return pt(data=data,schema=schema) |
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294 |
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295 def getListOfTables(self,schema='public',username='guest'): |
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296 """return list of tables""" |
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297 logging.debug("getlistoftables") |
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298 # get list of fields and types of db table |
| 22 | 299 qstr="""SELECT c.relname AS tablename FROM pg_catalog.pg_class c |
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300 LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace |
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301 WHERE c.relkind IN ('r','') AND n.nspname NOT IN ('pg_catalog', 'pg_toast') |
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302 AND pg_catalog.pg_table_is_visible(c.oid)""" |
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303 #qstr="select attname, format_type(pg_attribute.atttypid, pg_attribute.atttypmod) from pg_attribute, pg_class where attrelid = pg_class.oid and pg_attribute.attnum > 0" |
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304 data=self.executeSQL(qstr) |
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305 return data |
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306 |
| 22 | 307 def showListOfSchemas(self,format='XML',REQUEST=None,RESPONSE=None): |
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308 """returns PageTemplate with list of schemas""" |
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309 logging.debug("showlistofschemas") |
| 22 | 310 # JSON gets special treatment |
| 311 if format == "JSON": | |
| 312 data = self.getListOfSchemas() | |
| 313 RESPONSE.setHeader("Content-Type", "application/json") | |
| 314 json.dump(data, RESPONSE) | |
| 315 return | |
| 9 | 316 pt = getattr(self.template, '%s_index'%format, None) |
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317 if pt is None: |
| 9 | 318 return "ERROR!! template %s_index not found"%format |
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319 |
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320 data = self.getListOfSchemas() |
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321 return pt(data=data) |
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322 |
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323 def getListOfSchemas(self,username='guest'): |
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324 """return list of schemas""" |
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325 logging.debug("getlistofschemas") |
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326 # TODO: really look up schemas |
| 9 | 327 data={'fields': (('schemas',),), 'rows': [('public',),]} |
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328 return data |
| 14 | 329 |
| 330 def createEmptyTable(self,schema,table,fields): | |
| 331 """create a table with the given fields | |
| 332 returns list of created fields""" | |
| 15 | 333 logging.debug("createEmptyTable") |
| 14 | 334 sqlFields = [] |
| 335 for f in fields: | |
| 336 if isinstance(f,dict): | |
| 337 # {name: XX, type: YY} | |
| 338 name = sqlName(f['name']) | |
| 339 type = f['type'] | |
| 340 | |
| 341 else: | |
| 342 # name only | |
| 343 name = sqlName(f) | |
| 344 type = 'text' | |
| 345 | |
| 346 sqlFields.append({'name':name, 'type':type}) | |
| 347 | |
| 348 # drop table if it exists | |
| 349 try: | |
| 16 | 350 res = self.executeSQL('select * from "%s"."%s" where 1=0'%(schema,table)) |
| 351 logging.debug("createemptytable: table %s.%s exists"%(schema,table)) | |
| 17 | 352 self.executeSQL('drop table "%s"."%s"'%(schema,table),hasResult=False) |
| 14 | 353 except: |
| 354 pass | |
| 355 | |
| 15 | 356 fieldString = ", ".join(['"%s" %s'%(f['name'],f['type']) for f in sqlFields]) |
| 16 | 357 sqlString = 'create table "%s"."%s" (%s)'%(schema,table,fieldString) |
| 358 logging.debug("createemptytable: SQL=%s"%sqlString) | |
| 17 | 359 ret = self.executeSQL(sqlString,hasResult=False) |
| 14 | 360 |
| 361 return sqlFields | |
| 19 | 362 |
| 13 | 363 def createTableFromXML(self,schema,table,data): |
| 364 """create or replace a table with the given XML data""" | |
| 365 logging.debug("createTableFromXML schema=%s table=%s data=%s"%(schema,table,data)) | |
| 17 | 366 tablename = sqlName(table) |
| 367 self.importExcelXML(schema,tablename, data) | |
| 368 return {"tablename": tablename} | |
| 14 | 369 |
| 16 | 370 def importExcelXML(self,schema,table,xmldata,fieldNamesOnly=False): |
| 14 | 371 ''' |
| 372 Import XML file in Excel format into the table | |
| 373 @param table: name of the table the xml shall be imported into | |
| 374 @param containerTagName: XML-Tag which describes a dataset | |
| 375 @param data: data to be imported | |
| 376 @param identify: (optional) field res. tag which identifies a entry uniquely for updating purposes. | |
| 377 @param RESPONSE: (optional) | |
| 378 ''' | |
| 379 from xml.dom.pulldom import parseString,parse | |
| 380 | |
| 381 namespace = "urn:schemas-microsoft-com:office:spreadsheet" | |
| 382 containerTagName = "Table" | |
| 383 rowTagName = "Row" | |
| 16 | 384 colTagName = "Cell" |
| 14 | 385 dataTagName = "Data" |
| 386 fieldNames = [] | |
| 387 sqlFields = [] | |
| 16 | 388 numFields = 0 |
| 14 | 389 sqlInsert = None |
| 390 | |
| 391 logging.debug("import excel xml") | |
| 392 | |
| 393 ret="" | |
| 16 | 394 if isinstance(xmldata, str): |
| 14 | 395 logging.debug("importXML reading string data") |
| 16 | 396 doc=parseString(xmldata) |
| 14 | 397 else: |
| 398 logging.debug("importXML reading file data") | |
| 16 | 399 doc=parse(xmldata) |
| 14 | 400 |
| 401 cnt = 0 | |
| 402 while True: | |
| 403 node=doc.getEvent() | |
| 404 | |
| 405 if node is None: | |
| 406 break | |
| 407 | |
| 408 else: | |
| 16 | 409 #logging.debug("tag=%s"%node[1].localName) |
| 14 | 410 if node[1].localName is not None: |
| 411 tagName = node[1].localName.lower() | |
| 412 else: | |
| 413 # ignore non-tag nodes | |
| 414 continue | |
| 16 | 415 |
| 14 | 416 if tagName == rowTagName.lower(): |
| 417 # start of row | |
| 418 doc.expandNode(node[1]) | |
| 419 cnt += 1 | |
| 420 if cnt == 1: | |
| 421 # first row -- field names | |
| 422 names=node[1].getElementsByTagNameNS(namespace, dataTagName) | |
| 423 for name in names: | |
| 424 fn = getTextFromNode(name) | |
| 425 fieldNames.append(fn) | |
| 426 | |
| 427 if fieldNamesOnly: | |
| 428 # return just field names | |
| 429 return fieldNames | |
| 430 | |
| 431 # create table | |
| 432 sqlFields = self.createEmptyTable(schema, table, fieldNames) | |
| 16 | 433 numFields = len(sqlFields) |
| 15 | 434 fieldString = ", ".join(['"%s"'%f['name'] for f in sqlFields]) |
| 14 | 435 valString = ", ".join(["%s" for f in sqlFields]) |
| 16 | 436 sqlInsert = 'insert into "%s"."%s" (%s) values (%s)'%(schema,table,fieldString,valString) |
| 15 | 437 logging.debug("importexcelsql: sqlInsert=%s"%sqlInsert) |
| 14 | 438 |
| 439 else: | |
| 440 # following rows are data | |
| 16 | 441 colNodes=node[1].getElementsByTagNameNS(namespace, colTagName) |
| 14 | 442 data = [] |
| 16 | 443 hasData = False |
| 444 for colNode in colNodes: | |
| 445 dataNodes=colNode.getElementsByTagNameNS(namespace, dataTagName) | |
| 446 if len(dataNodes) > 0: | |
| 447 val = getTextFromNode(dataNodes[0]) | |
| 448 hasData = True | |
| 449 else: | |
| 450 val = None | |
| 451 | |
| 14 | 452 data.append(val) |
| 453 | |
| 16 | 454 if not hasData: |
| 455 # ignore empty rows | |
| 456 continue | |
| 457 | |
| 458 # fix number of data fields | |
| 459 if len(data) > numFields: | |
| 460 del data[numFields:] | |
| 461 elif len(data) < numFields: | |
| 462 missFields = numFields - len(data) | |
| 463 data.extend(missFields * [None,]) | |
| 464 | |
| 465 logging.debug("importexcel sqlinsert=%s data=%s"%(sqlInsert,data)) | |
| 17 | 466 self.executeSQL(sqlInsert, data, hasResult=False) |
| 14 | 467 |
| 16 | 468 return cnt |
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469 |
| 19 | 470 # Methods for GoogleMaps creation |
| 471 def showGoogleMap(self,schema='chgis',table='mpdl',id=[],doc=None): | |
| 472 logging.debug("showGoogleMap") | |
| 473 data = self.getDataForGoogleMap(schema,table,id,doc) | |
| 474 kml=self.getKMLname(data=data,table=table) | |
| 475 googleMap_page=self.htmlHead()+str(self.getGoogleMapString(kml=kml)) | |
| 476 return googleMap_page | |
| 477 | |
| 478 def getDataForGoogleMap(self,schema='chgis',table='mpdl',id=[],doc=None): | |
| 479 logging.debug("getDataForGoogleMap") | |
| 480 qstr="SELECT * FROM "+schema+"."+table | |
| 481 try: | |
| 482 if id!=[]: | |
| 483 qstr=qstr+" WHERE " | |
| 484 for id_item in id.split(","): | |
| 485 if table=='mpdl': | |
| 486 qstr=qstr+" mpdl_xmlsource_id = '"+id_item+ "' OR" | |
| 487 else: | |
| 488 qstr=qstr+" cast(id as text) LIKE '"+id_item+ "' OR" | |
| 489 qstr=str(qstr).rsplit(" ",1)[0] #to remove last " and " | |
| 490 data=self.ZSQLSimpleSearch(qstr) | |
| 491 return data | |
| 492 except: | |
| 493 return qstr | |
| 494 | |
| 495 def getKMLname(self,data=[],table=""): | |
| 496 logging.debug("getKMLname") | |
| 497 #session=context.REQUEST.SESSION | |
| 498 kml4Marker="<kml xmlns=\'http://www.opengis.net/kml/2.2\'><Document><Style id=\'marker_icon\'><IconStyle><scale>15</scale><Icon><href>http://chinagis.mpiwg-berlin.mpg.de/chinagis/images/dot_red.png</href></Icon></IconStyle></Style>\n" | |
| 499 initializeStringForGoogleMaps="" | |
| 500 #doLine=container.getVar('doLine') | |
| 501 # Mapping a set of points from table-based SQL-query: | |
| 502 if data!=None: | |
| 503 try: | |
| 504 SQL="""SELECT \"attribute with gis_id\" FROM public.metadata WHERE tablename LIKE '"""+table+"""'""" | |
| 505 gisIDattribute=self.ZSQLSimpleSearch(SQL) | |
| 506 except: | |
| 507 return "table not registered within metadata" | |
| 508 for dataset in data: | |
| 509 try: | |
| 510 xCoord=getattr(dataset,'longitude') | |
| 511 yCoord=getattr(dataset,'latitude') | |
| 512 except: | |
| 513 try: | |
| 514 xCoord=getattr(dataset,'x_coord') | |
| 515 yCoord=getattr(dataset,'y_coord') | |
| 516 except: | |
| 517 # try: | |
| 518 gisID=getattr(dataset,getattr(gisIDattribute[0],'attribute with gis_id')) | |
| 519 coords=self.getPoint4GISid(gisID) | |
| 520 if coords!=None: | |
| 521 xCoord=coords[0] | |
| 522 yCoord=coords[1] | |
| 523 # except: | |
| 524 # return "no coordinates found" | |
| 525 if float(xCoord)!=0: | |
| 526 if float(yCoord)!=0: | |
| 527 kml4Marker=kml4Marker+"<Placemark>" | |
| 528 kml4Marker=kml4Marker+"<description> <![CDATA[<b>" | |
| 529 for values in dataset: | |
| 530 if values != (None, None): | |
| 531 if str(values).find('name')>-1: | |
| 532 kml4Marker=kml4Marker+"<name>"+str(values[1])+"</name>\n" | |
| 533 continue | |
| 534 elif str(values).find('place')>-1: | |
| 535 kml4Marker=kml4Marker+"<name>"+str(values[1])+"</name>\n" | |
| 536 continue | |
| 14 | 537 |
| 19 | 538 kml4Marker=kml4Marker+str(values)+": " |
| 539 attribute_string=str(values).replace("'","__Apostroph__") | |
| 540 attribute_string=str(attribute_string).replace('"','__DoubleApostroph__') | |
| 541 attribute_string=str(attribute_string).replace(';','__$$__') | |
| 542 attribute_string=str(attribute_string).replace('&','&') | |
| 543 if str(attribute_string).find('http')>-1: | |
| 544 attribute_string='<A HREF=' + str(attribute_string) + ' target=_blank>' + str(attribute_string) + '</A>' | |
| 545 kml4Marker=kml4Marker+attribute_string+"</a><br>\n" | |
| 546 | |
| 547 kml4Marker=kml4Marker+"]]></description>\n" | |
| 548 kml4Marker=kml4Marker+"<styleURL>#marker_icon</styleURL>\n" | |
| 549 kml4Marker=kml4Marker+"<Point>" | |
| 550 | |
| 551 kml4Marker=kml4Marker+"<coordinates>"+str(xCoord)+","+str(yCoord)+",0</coordinates>\n" | |
| 552 kml4Marker=kml4Marker+"</Point>\n" | |
| 553 kml4Marker=kml4Marker+"</Placemark>\n" | |
| 14 | 554 |
| 19 | 555 kml4Marker=kml4Marker+"</Document>\n</kml>" |
| 556 kmlFileName="marker"+str(time.time())+".kml" | |
| 14 | 557 |
| 19 | 558 # kml4Marker=str(kml4Marker).replace('&','$$') |
| 559 # kml4Marker=str(kml4Marker).replace(';','__$$__') | |
| 560 # kml4Marker=str(kml4Marker).replace('#','__SHARP__') | |
| 561 initializeStringForGoogleMaps="""onload=\"initialize(\'http://chinagis.mpiwg-berlin.mpg.de/chinagis/REST/daten/"""+kmlFileName+"""\')\""""#+str(data) | |
| 562 initializeStringForGoogleMaps=initializeStringForGoogleMaps.replace("None","0") | |
| 563 isLoadReady='false' | |
| 564 while isLoadReady=='false': | |
| 565 isLoadReady=self.RESTwrite2File(self.daten,kmlFileName,kml4Marker) | |
| 566 | |
| 567 return initializeStringForGoogleMaps | |
| 14 | 568 |
| 19 | 569 def getGoogleMapString(self,kml): |
| 570 logging.debug("getGoogleMapString") | |
| 571 printed= '<body %s> '%kml +"""\n <div id="map_canvas" style="width: 98%; height: 95%"> </div> \n </body>" \n </html>""" | |
| 572 return printed | |
| 573 | |
| 574 def getPoint4GISid(self,gis_id): | |
| 575 j=0 | |
| 576 while (True): | |
| 577 j=j+1 | |
| 578 if (j>100): # FJK: just to prevent endless loops | |
| 579 break | |
| 580 if (gis_id.isdigit()): # FJK: regular exit from while-loop | |
| 581 break | |
| 582 else: | |
| 583 gis_id=gis_id.strip('abcdefghijklmnopqrstuvwxyz_') # FJK: to strip all letters | |
| 584 gis_id=gis_id.strip() # FJK: to strip all whitespaces | |
| 585 resultpoint = [0,0] | |
| 586 results = None | |
| 587 try: | |
| 588 if int(gis_id)>0: | |
| 589 SQL="SELECT x_coord,y_coord FROM chgis.chgis_coords WHERE gis_id LIKE cast("+ str(gis_id) +" as text);" | |
| 590 results=self.ZSQLSimpleSearch(SQL) | |
| 591 #print results | |
| 592 if results != None: | |
| 593 for result in results: | |
| 594 resultpoint=[getattr(result,str('x_coord')),getattr(result,str('y_coord'))] | |
| 595 if resultpoint !=[0,0]: | |
| 596 return resultpoint | |
| 14 | 597 else: |
| 19 | 598 coords=self.getCoordsFromREST_gisID(joinid) |
| 599 SQL="INSERT INTO chgis.chgis_coords (gis_id,x_coord,y_coord) VALUES (" +gis_id+ "," +coords[0][1]+ "," +coords[0][0]+ "); ANALYZE chgis.chgis_coords;" | |
| 600 returnstring=self.ZSQLSimpleSearch(SQL) | |
| 601 return coords[0] | |
| 602 except: | |
| 603 error="gis_id not to interpretable:"+str(gis_id) | |
| 16 | 604 |
| 19 | 605 def getCoordsFromREST_gisID(self,gis_id): |
| 606 coordlist=[] | |
| 607 i=0 | |
| 608 while (i<5 and coordlist==[]): | |
| 13 | 609 |
| 19 | 610 urlresponse=container.urlFunctions.zUrlopenParseString(container.urlFunctions.zUrlopenRead("http://chgis.hmdc.harvard.edu/xml/id/"+gis_id)) |
| 611 baseDocElement=container.urlFunctions.zUrlopenDocumentElement(urlresponse) | |
| 612 childnodes=container.urlFunctions.zUrlopenChildNodes(baseDocElement) | |
| 613 itemnodes=container.urlFunctions.zUrlopenGetElementsByTagName(baseDocElement,'item') | |
| 614 | |
| 615 for i in range(0,container.urlFunctions.zUrlopenLength(itemnodes)): | |
| 616 itemnode=container.urlFunctions.zUrlopenGetItem(itemnodes,i) | |
| 617 itemspatialnodes=container.urlFunctions.zUrlopenGetElementsByTagName(itemnode,'spatial') | |
| 618 for j in range(0,container.urlFunctions.zUrlopenLength(itemspatialnodes)): | |
| 619 coord=[] | |
| 620 itemspatialnode= container.urlFunctions.zUrlopenGetItem(itemspatialnodes,j) | |
| 621 itemspatiallatnodes=container.urlFunctions.zUrlopenGetElementsByTagName(itemspatialnode,'degrees_latitude') | |
| 622 for k in range(0,container.urlFunctions.zUrlopenLength(itemspatiallatnodes)): | |
| 623 itemspatiallatnode= container.urlFunctions.zUrlopenGetItem(itemspatiallatnodes,k) | |
| 624 coord.append(container.urlFunctions.zUrlopenGetTextData(itemspatiallatnode)) | |
| 625 itemspatiallngnodes=container.urlFunctions.zUrlopenGetElementsByTagName(itemspatialnode,'degrees_longitude') | |
| 626 for k in range(0,container.urlFunctions.zUrlopenLength(itemspatiallngnodes)): | |
| 627 itemspatiallngnode= container.urlFunctions.zUrlopenGetItem(itemspatiallngnodes,k) | |
| 628 coord.append(container.urlFunctions.zUrlopenGetTextData(itemspatiallngnode)) | |
| 629 coordlist.append(coord) | |
| 630 gis_id= "_"+gis_id | |
| 631 return coordlist | |
| 632 | |
| 633 # End for GoogleMaps creation | |
| 634 | |
| 635 def RESTwrite2File(self,datadir, name,text): | |
| 636 # try: | |
| 637 fileid=name | |
| 638 if fileid in datadir.objectIds(): | |
| 639 datadir.manage_delObjects(fileid) | |
| 640 newfile=open(name,'w') | |
| 641 newfile.write(text) | |
| 642 newfile.close() | |
| 643 file4Read=open(name,'r') | |
| 644 fileInZope=datadir.manage_addFile(id=fileid,file=file4Read) | |
| 645 return "Write successful" | |
| 646 # except: | |
| 647 # return "Could not write" | |
| 13 | 648 |
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649 |
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650 def manage_editRestDbInterface(self, title=None, connection_id=None, |
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651 REQUEST=None): |
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652 """Change the object""" |
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653 if title is not None: |
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654 self.title = title |
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655 |
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656 if connection_id is not None: |
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657 self.connection_id = connection_id |
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658 |
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659 #checkPermission=getSecurityManager().checkPermission |
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660 REQUEST.RESPONSE.redirect('manage_main') |
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661 |
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662 |
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663 manage_addRestDbInterfaceForm=PageTemplateFile('zpt/addRestDbInterface',globals()) |
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664 |
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665 def manage_addRestDbInterface(self, id, title='', label='', description='', |
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666 createPublic=0, |
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667 createUserF=0, |
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668 REQUEST=None): |
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669 """Add a new object with id *id*.""" |
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670 |
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671 ob=RestDbInterface(str(id),title) |
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672 self._setObject(id, ob) |
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673 |
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674 #checkPermission=getSecurityManager().checkPermission |
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675 REQUEST.RESPONSE.redirect('manage_main') |
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676 |
| 5 | 677 |