Changeset 4158
- Timestamp:
- 24 May 2009, 10:10:03 (16 years ago)
- File:
-
- 1 edited
Legend:
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- Added
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waeup/branches/ulif-rewrite/src/waeup/utils/importexport.py
r4057 r4158 8 8 from zope.interface import Interface 9 9 from waeup.interfaces import (IWAeUPObject, IWAeUPExporter, IWAeUPXMLExporter, 10 IWAeUPXMLImporter )10 IWAeUPXMLImporter, IWAeUPCSVImporter) 11 11 12 12 def readFile(f): … … 86 86 return obj 87 87 88 class CSVImporter(grok.Adapter): 89 grok.context(IWAeUPObject) 90 grok.provides(IWAeUPCSVImporter) 91 grok.baseclass() # We don't want this base to be registered really. 92 column_terms = [] # The column terms supported by this importer 93 94 def __init__(self, context): 95 self.context = context 96 97 def doImport(self, filepath): 98 pass 99 100 def getData(self, filepath): 101 result = readFile(open(filepath, 'rb')) 102 return result 103 104 def validate(self, filepath): 105 self.checkHeader(filepath) 106 self.getData(filepath) 107 return True 108 109 def checkHeader(self, filepath): 110 missing = [] 111 headerline = '' 112 113 # Extract the header fields... 114 for line in open(filepath, 'rb'): 115 headerline = line 116 if len(headerline.strip()) == 0: 117 continue # Ignore leading empty lines... 118 break # We only want the first line... 119 tmpfile = StringIO(headerline) 120 headerfields = readFile(tmpfile)[0] 121 122 # Find missing header fields... 123 for key in self.column_terms: 124 if key not in headerfields: 125 missing.append(key) 126 if len(missing): 127 raise KeyError( 128 'Validation Error: the follwing ' 129 'columns could not be found: %s' % (', '.join(missing)) 130 ) 131 return
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