1 | from zope.interface import classProvides, implements |
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2 | from ZODB.POSException import ConflictError |
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3 | |
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4 | from collective.transmogrifier.interfaces import ISection, ISectionBlueprint |
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5 | from collective.transmogrifier.utils import defaultMatcher |
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6 | |
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7 | from Products.Marshall import registry |
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8 | from Products.Archetypes.interfaces import IBaseObject |
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9 | |
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10 | class MarshallSection(object): |
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11 | classProvides(ISectionBlueprint) |
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12 | implements(ISection) |
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13 | |
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14 | def __init__(self, transmogrifier, name, options, previous): |
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15 | self.previous = previous |
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16 | self.context = transmogrifier.context |
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17 | |
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18 | self.pathkey = defaultMatcher(options, 'path-key', name, 'path') |
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19 | self.excludekey = defaultMatcher(options, 'exclude-key', name, 'excluded_fields') |
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20 | |
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21 | self.marshaller = registry.getComponent("atxml") |
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22 | |
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23 | def __iter__(self): |
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24 | for item in self.previous: |
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25 | pathkey = self.pathkey(*item.keys())[0] |
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26 | |
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27 | if not pathkey: |
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28 | yield item; continue |
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29 | |
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30 | path = item[pathkey] |
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31 | obj = self.context.unrestrictedTraverse(path, None) |
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32 | if obj is None: # path doesn't exist |
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33 | yield item; continue |
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34 | |
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35 | if IBaseObject.providedBy(obj): |
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36 | excludekey = self.excludekey(*item.keys())[0] |
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37 | atns_exclude = () |
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38 | if excludekey: |
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39 | atns_exclude = item[excludekey] |
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40 | |
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41 | try: |
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42 | content_type, length, data = self.marshaller.marshall(obj, atns_exclude=atns_exclude) |
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43 | except ConflictError: |
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44 | raise |
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45 | except: |
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46 | data = None |
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47 | |
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48 | if data or data is None: |
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49 | # None value has special meaning for IExportDataCorrector adapter for topic criterias |
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50 | files = item.setdefault('_files', {}) |
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51 | item['_files']['marshall'] = { |
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52 | 'name': '.marshall.xml', |
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53 | 'data': data, |
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54 | } |
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55 | |
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56 | yield item |
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