| 1 | ## $Id: batching.py 9263 2012-10-01 06:55:04Z henrik $ |
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| 2 | ## |
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| 3 | ## Copyright (C) 2011 Uli Fouquet & Henrik Bettermann |
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| 4 | ## This program is free software; you can redistribute it and/or modify |
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| 5 | ## it under the terms of the GNU General Public License as published by |
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| 6 | ## the Free Software Foundation; either version 2 of the License, or |
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| 7 | ## (at your option) any later version. |
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| 8 | ## |
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| 9 | ## This program is distributed in the hope that it will be useful, |
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| 10 | ## but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 12 | ## GNU General Public License for more details. |
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| 13 | ## |
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| 14 | ## You should have received a copy of the GNU General Public License |
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| 15 | ## along with this program; if not, write to the Free Software |
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| 16 | ## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 17 | ## |
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| 18 | """Batch processing components for hostels. |
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| 19 | |
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| 20 | """ |
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| 21 | import grok |
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| 22 | from zope.interface import Interface |
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| 23 | from waeup.kofa.interfaces import IBatchProcessor, IGNORE_MARKER |
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| 24 | from waeup.kofa.utils.batching import BatchProcessor |
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| 25 | from waeup.kofa.hostels.interfaces import IHostel |
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| 26 | |
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| 27 | class HostelProcessor(BatchProcessor): |
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| 28 | """A batch processor for IHostel objects. |
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| 29 | """ |
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| 30 | grok.implements(IBatchProcessor) |
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| 31 | grok.provides(IBatchProcessor) |
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| 32 | grok.context(Interface) |
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| 33 | util_name = 'hostelprocessor' |
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| 34 | grok.name(util_name) |
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| 35 | |
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| 36 | name = u'Hostel Processor' |
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| 37 | iface = IHostel |
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| 38 | |
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| 39 | location_fields = ['hostel_id',] |
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| 40 | factory_name = 'waeup.Hostel' |
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| 41 | |
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| 42 | mode = None |
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| 43 | |
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| 44 | def parentsExist(self, row, site): |
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| 45 | return 'hostels' in site.keys() |
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| 46 | |
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| 47 | def entryExists(self, row, site): |
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| 48 | return row['hostel_id'] in site['hostels'].keys() |
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| 49 | |
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| 50 | def getParent(self, row, site): |
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| 51 | return site['hostels'] |
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| 52 | |
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| 53 | def getEntry(self, row, site): |
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| 54 | if not self.entryExists(row, site): |
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| 55 | return None |
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| 56 | parent = self.getParent(row, site) |
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| 57 | return parent.get(row['hostel_id']) |
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| 58 | |
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| 59 | def addEntry(self, obj, row, site): |
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| 60 | parent = self.getParent(row, site) |
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| 61 | parent.addHostel(obj) |
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| 62 | return |
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| 63 | |
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| 64 | def updateEntry(self, obj, row, site): |
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| 65 | """Update obj to the values given in row. |
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| 66 | |
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| 67 | Returns a string describing the fields changed. |
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| 68 | """ |
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| 69 | changed = [] |
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| 70 | for key, value in row.items(): |
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| 71 | # Skip fields to be ignored. |
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| 72 | if value == IGNORE_MARKER: |
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| 73 | continue |
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| 74 | if not hasattr(obj, key): |
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| 75 | continue |
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| 76 | try: |
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| 77 | evalvalue = eval(value) |
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| 78 | if isinstance(evalvalue, list): |
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| 79 | value = eval(value) |
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| 80 | except: |
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| 81 | pass |
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| 82 | setattr(obj, key, value) |
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| 83 | log_value = getattr(value, 'code', value) |
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| 84 | changed.append('%s=%s' % (key, log_value)) |
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| 85 | |
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| 86 | # Log actions... |
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| 87 | location_field = self.location_fields[0] |
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| 88 | items_changed = ', '.join(changed) |
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| 89 | grok.getSite()['hostels'].logger.info('%s - %s - Record updated: %s' |
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| 90 | % (self.name, row[location_field], items_changed)) |
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| 91 | return |
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