Annotation of ZSQLExtend/importFMPXML.py, revision 1.33

1.1       casties     1: #!/usr/local/bin/python
                      2: #
                      3: 
                      4: import string
                      5: import logging
                      6: import sys
1.7       dwinter     7: import types
1.8       casties     8: import time
1.33    ! casties     9: import re
1.1       casties    10: 
1.5       casties    11: from xml import sax
                     12: from amara import saxtools
                     13: 
1.2       casties    14: try:
                     15:     import psycopg2 as psycopg
1.23      casties    16:     import psycopg2.extensions
                     17:     # switch to unicode
                     18:     psycopg2.extensions.register_type(psycopg2.extensions.UNICODE)
1.2       casties    19:     psyco = 2
                     20: except:
                     21:     import psycopg
                     22:     psyco = 1
                     23: 
1.5       casties    24: fm_ns = 'http://www.filemaker.com/fmpxmlresult'
1.1       casties    25: 
1.33    ! casties    26: version_string = "V0.6.7 ROC 21.6.2011"
1.20      casties    27: 
1.21      casties    28: def unicodify(text, withNone=False):
1.20      casties    29:     """decode str (utf-8 or latin-1 representation) into unicode object"""
1.21      casties    30:     if withNone and text is None:
1.20      casties    31:         return None
1.21      casties    32:     if not text:
1.20      casties    33:         return u""
1.21      casties    34:     if isinstance(text, str):
1.20      casties    35:         try:
1.21      casties    36:             return text.decode('utf-8')
1.20      casties    37:         except:
1.21      casties    38:             return text.decode('latin-1')
1.20      casties    39:     else:
1.21      casties    40:         return text
1.20      casties    41: 
1.21      casties    42: def utf8ify(text, withNone=False):
1.20      casties    43:     """encode unicode object or string into byte string in utf-8 representation"""
1.21      casties    44:     if withNone and text is None:
1.20      casties    45:         return None
1.21      casties    46:     if not text:
1.20      casties    47:         return ""
1.22      casties    48:     if isinstance(text, unicode):
                     49:         return text.encode('utf-8')
                     50:     else:
1.21      casties    51:         return text
1.8       casties    52: 
1.1       casties    53: def getTextFromNode(nodename):
                     54:     """get the cdata content of a node"""
                     55:     if nodename is None:
                     56:         return ""
                     57:     nodelist=nodename.childNodes
                     58:     rc = ""
                     59:     for node in nodelist:
                     60:         if node.nodeType == node.TEXT_NODE:
                     61:            rc = rc + node.data
                     62:     return rc
                     63: 
                     64: def sql_quote(v):
                     65:     # quote dictionary
                     66:     quote_dict = {"\'": "''", "\\": "\\\\"}
                     67:     for dkey in quote_dict.keys():
                     68:         if string.find(v, dkey) >= 0:
                     69:             v=string.join(string.split(v,dkey),quote_dict[dkey])
1.5       casties    70:     return "'%s'"%v
1.1       casties    71: 
1.33    ! casties    72: def sqlName(s, lc=True, more=''):
        !            73:     """returns restricted ASCII-only version of string"""
        !            74:     if s is None:
        !            75:         return ""
        !            76:     
        !            77:     # remove '
        !            78:     s = s.replace("'","")
        !            79:     # all else -> "_"
        !            80:     s = re.sub('[^A-Za-z0-9_'+more+']','_',s)
        !            81:     if lc:
        !            82:         return s.lower()
        !            83:     
        !            84:     return s
        !            85: 
1.8       casties    86: def SimpleSearch(curs,query, args=None, ascii=False):
1.1       casties    87:     """execute sql query and return data"""
1.15      casties    88:     #logger.debug("executing: "+query)
1.8       casties    89:     if ascii:
                     90:         # encode all in UTF-8
1.20      casties    91:         query = utf8ify(query)
1.8       casties    92:         if args is not None:
                     93:             encargs = []
                     94:             for a in args:
1.20      casties    95:                 encargs.append(utf8ify(a, withNone=True))
1.8       casties    96:             
                     97:             args = encargs
1.7       dwinter    98: 
1.1       casties    99:     curs.execute(query, args)
1.15      casties   100:     #logger.debug("sql done")
1.4       casties   101:     try:
                    102:         return curs.fetchall()
                    103:     except:
                    104:         return None
1.1       casties   105: 
                    106: 
1.8       casties   107: class TableColumn:
                    108:     """simple type for storing sql column name and type"""
                    109:     
                    110:     def __init__(self, name, type=None):
                    111:         #print "new tablecolumn(%s,%s)"%(name, type)
                    112:         self.name = name
                    113:         self.type = type
                    114:         
                    115:     def getName(self):
                    116:         return self.name
                    117:     
                    118:     def getType(self):
                    119:         if self.type is not None:
                    120:             return self.type
                    121:         else:
                    122:             return "text"
1.5       casties   123: 
1.8       casties   124:     def __str__(self):
                    125:         return self.name
                    126:     
                    127:     
1.5       casties   128: class xml_handler:
1.8       casties   129:     def __init__(self,options):
1.9       dwinter   130:         """SAX handler to import FileMaker XML file (FMPXMLRESULT format) into the table.
1.8       casties   131:         @param options: dict of options
                    132:         @param options.dsn: database connection string
                    133:         @param options.table: name of the table the xml shall be imported into
                    134:         @param options.filename: xmlfile filename
                    135:         @param options.update_fields: (optional) list of fields to update; default is to create all fields
                    136:         @param options.id_field: (optional) field which uniquely identifies an entry for updating purposes.
                    137:         @param options.sync_mode: (optional) really synchronise, i.e. delete entries not in XML file
                    138:         @param options.lc_names: (optional) lower case and clean up field names from XML
                    139:         @param options.keep_fields: (optional) don't add fields to SQL database
                    140:         @param options.ascii_db: (optional) assume ascii encoding in db
                    141:         @param options.replace_table: (optional) delete and re-insert data
1.14      casties   142:         @param options.backup_table: (optional) create backup of old table (breaks indices)
1.15      casties   143:         @param options.use_logger_instance: (optional) use this instance of a logger
1.9       dwinter   144:         """
                    145:         
1.15      casties   146:         # set up logger
                    147:         if hasattr(options, 'use_logger_instance'):
                    148:             self.logger = options.use_logger_instance
                    149:         else:
                    150:             self.logger = logging.getLogger('db.import.fmpxml')
                    151: 
                    152:         
1.5       casties   153:         # set up parser
                    154:         self.event = None
                    155:         self.top_dispatcher = { 
                    156:             (saxtools.START_ELEMENT, fm_ns, u'METADATA'): 
                    157:             self.handle_meta_fields,
                    158:             (saxtools.START_ELEMENT, fm_ns, u'RESULTSET'): 
1.8       casties   159:             self.handle_data_fields,
1.5       casties   160:             }
                    161:         
                    162:         # connect database
1.8       casties   163:         self.dbCon = psycopg.connect(options.dsn)
1.25      casties   164:         logging.debug("DB encoding: %s"%getattr(self.dbCon, 'encoding', 'UNKNOWN'))
1.5       casties   165:         self.db = self.dbCon.cursor()
1.8       casties   166:         assert self.db, "AIIEE no db cursor for %s!!"%options.dsn
1.1       casties   167:     
1.9       dwinter   168:         self.table = getattr(options,"table",None)
                    169:         self.update_fields = getattr(options,"update_fields",None)
                    170:         self.id_field = getattr(options,"id_field",None)
                    171:         self.sync_mode = getattr(options,"sync_mode",None)
                    172:         self.lc_names = getattr(options,"lc_names",None)
                    173:         self.keep_fields = getattr(options,"keep_fields",None)
                    174:         self.ascii_db = getattr(options,"ascii_db",None)
                    175:         self.replace_table = getattr(options,"replace_table",None)
                    176:         self.backup_table = getattr(options,"backup_table",None)
1.23      casties   177:         self.read_before_update = getattr(options,"read_before_update",None)
1.28      casties   178:         self.debug_data = getattr(options,"debug_data",None)
1.8       casties   179: 
1.15      casties   180:         self.logger.debug("dsn: "+repr(getattr(options,"dsn",None)))
                    181:         self.logger.debug("table: "+repr(self.table))
                    182:         self.logger.debug("update_fields: "+repr(self.update_fields))
                    183:         self.logger.debug("id_field: "+repr(self.id_field))
                    184:         self.logger.debug("sync_mode: "+repr(self.sync_mode))
                    185:         self.logger.debug("lc_names: "+repr(self.lc_names))
                    186:         self.logger.debug("keep_fields: "+repr(self.keep_fields))
                    187:         self.logger.debug("ascii_db: "+repr(self.ascii_db))
                    188:         self.logger.debug("replace_table: "+repr(self.replace_table))
                    189:         self.logger.debug("backup_table: "+repr(self.backup_table))
1.23      casties   190:         self.logger.debug("read_before_update: "+repr(self.read_before_update))
1.28      casties   191:         self.logger.debug("debug_data: "+repr(self.debug_data))
1.5       casties   192:         
                    193:         self.dbIDs = {}
                    194:         self.rowcnt = 0
1.8       casties   195:         
                    196:         if self.id_field is not None:
1.5       casties   197:             # prepare a list of ids for sync mode
1.8       casties   198:             qstr="select %s from %s"%(self.id_field,self.table)
1.5       casties   199:             for id in SimpleSearch(self.db, qstr):
                    200:                 # value 0: not updated
                    201:                 self.dbIDs[id[0]] = 0;
                    202:                 self.rowcnt += 1
                    203:                 
1.15      casties   204:             self.logger.info("%d entries in DB to sync"%self.rowcnt)
1.5       casties   205:         
1.8       casties   206:         # names of fields in XML file
                    207:         self.xml_field_names = []
                    208:         # map XML field names to SQL field names
                    209:         self.xml_field_map = {}
                    210:         # and vice versa
                    211:         self.sql_field_map = {}
1.5       casties   212:         
                    213:         return
                    214: 
                    215:     def handle_meta_fields(self, end_condition):
                    216:         dispatcher = {
                    217:             (saxtools.START_ELEMENT, fm_ns, u'FIELD'):
                    218:             self.handle_meta_field,
                    219:             }
                    220:         #First round through the generator corresponds to the
                    221:         #start element event
1.15      casties   222:         self.logger.info("reading metadata...")
1.30      casties   223:         if self.debug_data:
                    224:             self.logger.debug("START METADATA")
1.5       casties   225:         yield None
1.1       casties   226:     
1.5       casties   227:         #delegate is a generator that handles all the events "within"
                    228:         #this element
                    229:         delegate = None
                    230:         while not self.event == end_condition:
                    231:             delegate = saxtools.tenorsax.event_loop_body(
                    232:                 dispatcher, delegate, self.event)
                    233:             yield None
                    234:         
                    235:         #Element closed. Wrap up
1.30      casties   236:         if self.debug_data:
                    237:             self.logger.debug("END METADATA")
1.8       casties   238:         
                    239:         # rename table for backup
                    240:         if self.backup_table:
                    241:             self.orig_table = self.table
1.16      casties   242:             self.tmp_table = self.table + "_tmp"
                    243:             backup_name = "%s_%s"%(self.table,time.strftime('%Y_%m_%d_%H_%M_%S'))
                    244:             
1.8       casties   245:             # remove old temp table
1.16      casties   246:             qstr = "DROP TABLE %s"%(self.tmp_table)
1.8       casties   247:             try:
                    248:                 self.db.execute(qstr)
                    249:             except:
                    250:                 pass
                    251:             
                    252:             self.dbCon.commit()
                    253:            
                    254:             if self.id_field:
1.16      casties   255:                 # sync mode -- copy backup table, update current table 
                    256:                 self.logger.info("copy table %s to %s"%(self.table,backup_name))
                    257:                 qstr = "CREATE TABLE %s AS (SELECT * FROM %s)"%(backup_name,self.table)
1.8       casties   258: 
                    259:             else:
1.16      casties   260:                 # replace mode -- create empty tmp table, insert into tmp table
                    261:                 self.table = self.tmp_table
1.15      casties   262:                 self.logger.info("create empty table %s"%(self.table))
1.8       casties   263:                 qstr = "CREATE TABLE %s AS (SELECT * FROM %s WHERE 1=0)"%(self.table,self.orig_table)
                    264:             
                    265:             self.db.execute(qstr)
                    266:             self.dbCon.commit()
                    267:         
                    268:         # delete data from table for replace
                    269:         if self.replace_table:
1.15      casties   270:             self.logger.info("delete data from table %s"%(self.table))
1.8       casties   271:             qstr = "TRUNCATE TABLE %s"%(self.table)
                    272:             self.db.execute(qstr)
                    273:             self.dbCon.commit()
                    274:            
                    275:         # try to match date style with XML
                    276:         self.db.execute("set datestyle to 'german'")
                    277:         
1.15      casties   278:         #self.logger.debug("xml-fieldnames:"+repr(self.xml_field_names))
1.8       casties   279:         # get list of fields and types of db table
                    280:         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 and relname = '%s'"
                    281:         self.sql_fields={}
                    282:         for f in SimpleSearch(self.db, qstr%self.table):
1.24      casties   283:             fn = f[0]
                    284:             ft = f[1]
1.8       casties   285:             #print "SQL fields: %s (%s)"%(n,t)
1.24      casties   286:             self.sql_fields[fn] = TableColumn(fn,ft)
1.8       casties   287:         
1.17      casties   288:         # translate id_field (SQL-name) to XML-name
                    289:         self.xml_id = self.sql_field_map.get(self.id_field, None)
                    290:         # get type of id_field
                    291:         if self.id_field:
                    292:             self.id_type = self.sql_fields[self.id_field].getType()
                    293:         else:
                    294:             self.id_type = None
                    295:         
1.8       casties   296:         # check fields to update
1.5       casties   297:         if self.update_fields is None:
1.8       casties   298:             if self.keep_fields:
1.13      casties   299:                 # update all existing fields from sql (when they are in the xml file)
                    300:                 self.update_fields = {}
                    301:                 for f in self.sql_fields.keys():
                    302:                     if self.sql_field_map.has_key(f):
                    303:                         xf = self.sql_field_map[f]
                    304:                         self.update_fields[f] = self.xml_field_map[xf]
                    305: 
1.8       casties   306:             else:
                    307:                 # update all fields
                    308:                 if self.lc_names:
                    309:                     # create dict with sql names
                    310:                     self.update_fields = {}
                    311:                     for f in self.xml_field_map.values():
                    312:                         self.update_fields[f.getName()] = f
                    313:                         
                    314:                 else:
                    315:                     self.update_fields = self.xml_field_map
1.17      casties   316:                                 
1.8       casties   317:         # and translate to list of xml fields
                    318:         if self.lc_names:
                    319:             self.xml_update_list = [self.sql_field_map[x] for x in self.update_fields]
                    320:         else:
                    321:             self.xml_update_list = self.update_fields.keys()
1.17      casties   322: 
1.8       casties   323:         if not self.keep_fields:
                    324:             # adjust db table to fields in XML and update_fields
                    325:             for f in self.xml_field_map.values():
1.15      casties   326:                 self.logger.debug("sync-fieldname: %s"%f.getName())
1.8       casties   327:                 sf = self.sql_fields.get(f.getName(), None)
                    328:                 uf = self.update_fields.get(f.getName(), None)
                    329:                 if sf is not None:
                    330:                     # name in db -- check type
                    331:                     if f.getType() != sf.getType():
1.15      casties   332:                         self.logger.debug("field %s has different type (%s vs %s)"%(f,f.getType(),sf.getType()))
1.8       casties   333:                 elif uf is not None:
                    334:                     # add field to table
1.24      casties   335:                     fn = uf.getName()
                    336:                     ft = uf.getType()
                    337:                     qstr="alter table %s add \"%s\" %s"%(self.table,fn,ft)
1.15      casties   338:                     self.logger.info("db add field:"+qstr)
1.8       casties   339:                     
                    340:                     if self.ascii_db and type(qstr)==types.UnicodeType:
                    341:                         qstr=qstr.encode('utf-8')
                    342:                         
                    343:                     self.db.execute(qstr)
                    344:                     self.dbCon.commit()
1.24      casties   345:                     # add field to field list
                    346:                     self.sql_fields[fn] = TableColumn(fn, ft)
1.7       dwinter   347:                 
1.17      casties   348:         # prepare sql statements for update (do not update id_field)
1.24      casties   349:         setStr=string.join(["\"%s\" = %%s"%self.xml_field_map[f] for f in self.xml_update_list if f != self.xml_id], ', ')
                    350:         self.updQuery="UPDATE %s SET %s WHERE \"%s\" = %%s"%(self.table,setStr,self.id_field)
1.23      casties   351:         # and select (for update check)
                    352:         selStr=string.join([self.xml_field_map[f].getName() for f in self.xml_update_list if f != self.xml_id], ', ')
1.24      casties   353:         self.selQuery="SELECT %s FROM %s WHERE \"%s\" = %%s"%(selStr,self.table,self.id_field)
1.5       casties   354:         # and insert
1.24      casties   355:         fields=string.join(["\"%s\""%self.xml_field_map[x].getName() for x in self.xml_update_list], ',')
1.8       casties   356:         values=string.join(['%s' for f in self.xml_update_list], ',')
1.5       casties   357:         self.addQuery="INSERT INTO %s (%s) VALUES (%s)"%(self.table,fields,values)
1.15      casties   358:         self.logger.debug("update-query: "+self.updQuery)
1.23      casties   359:         self.logger.debug("sel-query: "+self.selQuery)
1.15      casties   360:         self.logger.debug("add-query: "+self.addQuery)
1.5       casties   361:         return
                    362: 
                    363:     def handle_meta_field(self, end_condition):
                    364:         name = self.params.get((None, u'NAME'))
                    365:         yield None
                    366:         #Element closed.  Wrap up
1.8       casties   367:         if self.lc_names:
                    368:             # clean name
1.33    ! casties   369:             sqlname = sqlName(name)
1.8       casties   370:         else:
                    371:             sqlname = name
                    372:         self.xml_field_names.append(name)
                    373:         # map to sql name and default text type
                    374:         self.xml_field_map[name] = TableColumn(sqlname, 'text')
                    375:         self.sql_field_map[sqlname] = name
1.15      casties   376:         self.logger.debug("FIELD name: "+name)
1.5       casties   377:         return
                    378: 
1.8       casties   379:     def handle_data_fields(self, end_condition):
1.5       casties   380:         dispatcher = {
                    381:             (saxtools.START_ELEMENT, fm_ns, u'ROW'):
                    382:             self.handle_row,
                    383:             }
                    384:         #First round through the generator corresponds to the
                    385:         #start element event
1.15      casties   386:         self.logger.info("reading data...")
1.30      casties   387:         if self.debug_data:
                    388:             self.logger.debug("START RESULTSET")
1.5       casties   389:         self.rowcnt = 0
                    390:         yield None
1.1       casties   391:     
1.5       casties   392:         #delegate is a generator that handles all the events "within"
                    393:         #this element
                    394:         delegate = None
                    395:         while not self.event == end_condition:
                    396:             delegate = saxtools.tenorsax.event_loop_body(
                    397:                 dispatcher, delegate, self.event)
                    398:             yield None
                    399:         
                    400:         #Element closed.  Wrap up
1.30      casties   401:         if self.debug_data:
                    402:             self.logger.debug("END RESULTSET")
1.5       casties   403:         self.dbCon.commit()
1.1       casties   404:         
1.5       casties   405:         if self.sync_mode:
                    406:             # delete unmatched entries in db
1.32      casties   407:             if self.rowcnt > 0:
                    408:                 self.logger.info("deleting unmatched rows from db")
                    409:                 delQuery = "DELETE FROM %s WHERE \"%s\" = %%s"%(self.table,self.id_field)
                    410:                 for id in self.dbIDs.keys():
                    411:                     # find all not-updated fields
                    412:                     if self.dbIDs[id] == 0:
                    413:                         self.logger.info(" delete: %s"%id)
                    414:                         SimpleSearch(self.db, delQuery, [id], ascii=self.ascii_db)
                    415:                         
                    416:                     elif self.dbIDs[id] > 1:
                    417:                         self.logger.info(" sync: ID %s used more than once?"%id)
                    418:                 
                    419:                 self.dbCon.commit()
                    420:                 
                    421:             else:
                    422:                 # safety in case we had an empty file
                    423:                 self.logger.warning("no rows read! not deleting unmatched rows!")
1.1       casties   424:             
1.8       casties   425:         # reinstate backup tables
1.16      casties   426:         if self.backup_table and not self.id_field:
1.8       casties   427:             backup_name = "%s_%s"%(self.orig_table,time.strftime('%Y_%m_%d_%H_%M_%S'))
1.15      casties   428:             self.logger.info("rename backup table %s to %s"%(self.orig_table,backup_name))
1.8       casties   429:             qstr = "ALTER TABLE %s RENAME TO %s"%(self.orig_table,backup_name)
                    430:             self.db.execute(qstr)
1.15      casties   431:             self.logger.info("rename working table %s to %s"%(self.table,self.orig_table))
1.8       casties   432:             qstr = "ALTER TABLE %s RENAME TO %s"%(self.table,self.orig_table)
                    433:             self.db.execute(qstr)
1.5       casties   434:             self.dbCon.commit()
1.1       casties   435:         
1.30      casties   436:         self.logger.info("Done (%s rows)"%self.rowcnt)
1.5       casties   437:         return
                    438: 
                    439:     def handle_row(self, end_condition):
                    440:         dispatcher = {
                    441:             (saxtools.START_ELEMENT, fm_ns, u'COL'):
                    442:             self.handle_col,
                    443:             }
1.30      casties   444:         if self.debug_data:
                    445:             self.logger.debug("START ROW")
1.8       casties   446:         self.xml_data = {}
1.5       casties   447:         self.colIdx = 0
                    448:         yield None
1.1       casties   449:     
1.5       casties   450:         #delegate is a generator that handles all the events "within"
                    451:         #this element
                    452:         delegate = None
                    453:         while not self.event == end_condition:
                    454:             delegate = saxtools.tenorsax.event_loop_body(
                    455:                 dispatcher, delegate, self.event)
                    456:             yield None
                    457:         
                    458:         #Element closed.  Wrap up
1.30      casties   459:         if self.debug_data:
                    460:             self.logger.debug("END ROW")
1.5       casties   461:         self.rowcnt += 1
                    462:         # process collected row data
                    463:         update=False
                    464:         id_val=''
                    465:         # synchronize by id_field
                    466:         if self.id_field:
1.17      casties   467:             if self.id_type == 'integer':
1.29      casties   468:                 try:
                    469:                     id_val = int(self.xml_data[self.xml_id])
                    470:                 except:
                    471:                     pass
1.17      casties   472:             else:
                    473:                 id_val = self.xml_data[self.xml_id]
1.29      casties   474: 
                    475:             if not id_val:
                    476:                 # abort update
                    477:                 self.logger.error("ERROR: unable to sync! emtpy id in row %s"%self.rowcnt)
                    478:                 return
1.17      casties   479:                 
1.5       casties   480:             if id_val in self.dbIDs:
                    481:                 self.dbIDs[id_val] += 1
                    482:                 update=True
1.8       casties   483: 
                    484:         # collect all values
                    485:         args = []
                    486:         for fn in self.xml_update_list:
1.17      casties   487:             # do not update id_field
1.19      casties   488:             if update and fn == self.xml_id:
1.17      casties   489:                 continue
                    490:             
1.8       casties   491:             f = self.xml_field_map[fn]
                    492:             val = self.xml_data[fn]
                    493:             type = self.sql_fields[f.getName()].getType()
1.31      casties   494:             if type == "date" and len(val.strip()) == 0: 
1.8       casties   495:                 # empty date field
                    496:                 val = None
                    497:                 
                    498:             elif type == "integer" and len(val) == 0: 
                    499:                 # empty int field
                    500:                 val = None
                    501:                 
                    502:             args.append(val)
                    503:                     
1.5       casties   504:         if update:
                    505:             # update existing row (by id_field)
1.23      casties   506:             if self.read_before_update:
                    507:                 # read data
1.28      casties   508:                 if self.debug_data:
                    509:                     self.logger.debug("update check: %s = %s"%(id_val, args))
1.23      casties   510:                 oldrow = SimpleSearch(self.db, self.selQuery, [id_val], ascii=self.ascii_db)
                    511:                 #i = 0
                    512:                 #for v in oldrow[0]:
                    513:                 #    logging.debug("v: %s = %s (%s)"%(v,args[i],v==args[i]))
                    514:                 #    i += 1
                    515:                 if tuple(oldrow[0]) != tuple(args):
                    516:                     # data has changed -- update
1.28      casties   517:                     if self.debug_data:
                    518:                         self.logger.debug("really update: %s = %s"%(id_val, args))
1.23      casties   519:                     args.append(id_val) # last arg is id
                    520:                     SimpleSearch(self.db, self.updQuery, args, ascii=self.ascii_db)
                    521:                     
                    522:             else:
                    523:                 # always update
1.28      casties   524:                 if self.debug_data:
                    525:                     self.logger.debug("update: %s = %s"%(id_val, args))
1.23      casties   526:                 args.append(id_val) # last arg is id
                    527:                 SimpleSearch(self.db, self.updQuery, args, ascii=self.ascii_db)
1.8       casties   528: 
1.5       casties   529:         else:
                    530:             # create new row
1.28      casties   531:             if self.debug_data:
                    532:                 self.logger.debug("insert: %s"%args)
1.8       casties   533:             SimpleSearch(self.db, self.addQuery, args, ascii=self.ascii_db)
1.5       casties   534: 
1.15      casties   535:         #self.logger.info(" row:"+"%d (%s)"%(self.rowcnt,id_val))
                    536:         if (self.rowcnt % 100) == 0:
                    537:             self.logger.info(" row:"+"%d (id:%s)"%(self.rowcnt,id_val))
1.5       casties   538:             self.dbCon.commit()
                    539:             
                    540:         return
                    541: 
                    542:     def handle_col(self, end_condition):
                    543:         dispatcher = {
                    544:             (saxtools.START_ELEMENT, fm_ns, u'DATA'):
                    545:             self.handle_data_tag,
                    546:             }
                    547:         #print "START COL"
                    548:         yield None
                    549:         #delegate is a generator that handles all the events "within"
                    550:         #this element
                    551:         delegate = None
                    552:         while not self.event == end_condition:
                    553:             delegate = saxtools.tenorsax.event_loop_body(
                    554:                 dispatcher, delegate, self.event)
                    555:             yield None
                    556:         #Element closed.  Wrap up
                    557:         #print "END COL"
                    558:         self.colIdx += 1
                    559:         return
                    560: 
                    561:     def handle_data_tag(self, end_condition):
                    562:         #print "START DATA"
                    563:         content = u''
                    564:         yield None
                    565:         # gather child elements
                    566:         while not self.event == end_condition:
                    567:             if self.event[0] == saxtools.CHARACTER_DATA:
                    568:                 content += self.params
                    569:             yield None
                    570:         #Element closed.  Wrap up
1.8       casties   571:         fn = self.xml_field_names[self.colIdx]
                    572:         self.xml_data[fn] = content
1.5       casties   573:         return
                    574: 
                    575: 
1.11      dwinter   576: def importFMPXML(options):
1.14      casties   577:     """import FileMaker XML file (FMPXMLRESULT format) into the table.     
1.11      dwinter   578:         @param options: dict of options
                    579:         @param options.dsn: database connection string
                    580:         @param options.table: name of the table the xml shall be imported into
                    581:         @param options.filename: xmlfile filename
                    582:         @param options.update_fields: (optional) list of fields to update; default is to create all fields
                    583:         @param options.id_field: (optional) field which uniquely identifies an entry for updating purposes.
                    584:         @param options.sync_mode: (optional) really synchronise, i.e. delete entries not in XML file
                    585:         @param options.lc_names: (optional) lower case and clean up field names from XML
                    586:         @param options.keep_fields: (optional) don't add fields to SQL database
                    587:         @param options.ascii_db: (optional) assume ascii encoding in db
                    588:         @param options.replace_table: (optional) delete and re-insert data
1.16      casties   589:         @param options.backup_table: (optional) create backup of old table
1.11      dwinter   590:         """
1.15      casties   591:         
1.11      dwinter   592:     if getattr(options,'update_fields',None):
                    593:         uf = {}
                    594:         for f in options.update_fields.split(','):
1.12      casties   595:             if f.find(':') > 0:
                    596:                 (n,t) = f.split(':')
                    597:             else:
                    598:                 n = f
                    599:                 t = None
1.11      dwinter   600:             uf[n] = TableColumn(n,t)
                    601:             
                    602:         options.update_fields = uf
                    603:     
                    604:     if getattr(options,'id_field',None) and getattr(options,'replace_table',None):
                    605:         logging.error("ABORT: sorry, you can't do both sync (id_field) and replace")
1.15      casties   606:         return
1.11      dwinter   607:         
                    608:     parser = sax.make_parser()
                    609:     #The "consumer" is our own handler
                    610:     consumer = xml_handler(options)
                    611:     #Initialize Tenorsax with handler
                    612:     handler = saxtools.tenorsax(consumer)
                    613:     #Resulting tenorsax instance is the SAX handler 
                    614:     parser.setContentHandler(handler)
                    615:     parser.setFeature(sax.handler.feature_namespaces, 1)
                    616:     parser.parse(options.filename)  
                    617:     
1.1       casties   618: 
1.9       dwinter   619: if __name__ == "__main__":
                    620:     from optparse import OptionParser
1.5       casties   621: 
1.9       dwinter   622:     opars = OptionParser()
                    623:     opars.add_option("-f", "--file", 
                    624:                      dest="filename",
                    625:                      help="FMPXML file name", metavar="FILE")
                    626:     opars.add_option("-c", "--dsn", 
                    627:                      dest="dsn", 
                    628:                      help="database connection string")
                    629:     opars.add_option("-t", "--table", 
                    630:                      dest="table", 
                    631:                      help="database table name")
                    632:     opars.add_option("--fields", default=None, 
                    633:                      dest="update_fields", 
                    634:                      help="list of fields to update (comma separated, sql-names)", metavar="LIST")
                    635:     opars.add_option("--id-field", default=None, 
                    636:                      dest="id_field", 
                    637:                      help="name of id field for synchronisation (only appends data otherwise, sql-name)", metavar="NAME")
                    638:     opars.add_option("--sync", "--sync-mode", default=False, action="store_true", 
                    639:                      dest="sync_mode", 
                    640:                      help="do full sync based on id field (remove unmatched fields from db)")
                    641:     opars.add_option("--lc-names", default=False, action="store_true", 
                    642:                      dest="lc_names", 
                    643:                      help="clean and lower case field names from XML")
                    644:     opars.add_option("--keep-fields", default=False, action="store_true", 
                    645:                      dest="keep_fields", 
                    646:                      help="don't add fields from XML to SQL table")
                    647:     opars.add_option("--ascii-db", default=False, action="store_true", 
                    648:                      dest="ascii_db", 
                    649:                      help="the SQL database stores ASCII instead of unicode")
                    650:     opars.add_option("--replace", default=False, action="store_true", 
                    651:                      dest="replace_table", 
                    652:                      help="replace table i.e. delete and re-insert data")
                    653:     opars.add_option("--backup", default=False, action="store_true", 
                    654:                      dest="backup_table", 
1.16      casties   655:                      help="create backup of old table")
1.23      casties   656:     opars.add_option("--read-before-update", default=False, action="store_true", 
                    657:                      dest="read_before_update", 
                    658:                      help="read all data to check if it really changed")
1.9       dwinter   659:     opars.add_option("-d", "--debug", default=False, action="store_true", 
                    660:                      dest="debug", 
                    661:                      help="debug mode (more output)")
1.28      casties   662:     opars.add_option("--debug-data", default=False, action="store_true", 
                    663:                      dest="debug_data", 
                    664:                      help="debug mode for data (even more output)")
1.9       dwinter   665:     
                    666:     (options, args) = opars.parse_args()
                    667:     
                    668:     if len(sys.argv) < 2 or options.filename is None or options.dsn is None:
                    669:         print "importFMPXML "+version_string
                    670:         opars.print_help()
                    671:         sys.exit(1)
                    672:     
                    673:     if options.debug:
                    674:         loglevel = logging.DEBUG
                    675:     else:
                    676:         loglevel = logging.INFO
                    677:     
                    678:     logging.basicConfig(level=loglevel, 
                    679:                         format='%(asctime)s %(levelname)s %(message)s',
                    680:                         datefmt='%H:%M:%S')
                    681: 
1.11      dwinter   682:     importFMPXML(options)
                    683: 
1.9       dwinter   684: 
                    685:     
1.1       casties   686: 

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