77 lines
2.6 KiB
Python
77 lines
2.6 KiB
Python
#
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# Copyright (c) 2015 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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View classes for export of report results.
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"""
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import csv
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from cStringIO import StringIO
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from zope.i18n import translate
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from loops.expert.browser.report import ReportConceptView
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from loops.interfaces import ILoopsObject
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from loops.util import _
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class ReportConceptCSVExport(ReportConceptView):
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isToplevel = True
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reportMode = 'export'
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delimiter = ';'
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encoding = 'UTF-8'
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def getFileName(self):
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return 'output'
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def getColumnTitle(self, field):
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lang = self.languageInfo.language
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return translate(_(field.title), target_language=lang)
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def __call__(self):
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fields = self.displayedColumns
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fieldNames = [f.name for f in fields]
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output = StringIO()
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writer = csv.DictWriter(output, fieldNames, delimiter=self.delimiter)
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output.write(self.delimiter.join(
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[self.getColumnTitle(f) for f in fields]) + '\n')
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results = self.reportInstance.getResults()
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for row in results:
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data = {}
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for f in fields:
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value = f.getValue(row)
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if ILoopsObject.providedBy(value):
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value = value.title
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if isinstance(value, unicode):
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value = value.encode(self.encoding)
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data[f.name] = value
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writer.writerow(data)
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text = output.getvalue()
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self.setDownloadHeader(text)
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return text
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def setDownloadHeader(self, text):
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response = self.request.response
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response.setHeader('Content-Disposition',
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'attachment; filename=%s.csv' %
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self.getFileName())
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response.setHeader('Cache-Control', '')
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response.setHeader('Pragma', '')
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response.setHeader('Content-Type', 'text/csv')
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response.setHeader('Content-Length', len(text))
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