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126 lines
4.7 KiB
126 lines
4.7 KiB
# -*- coding: utf-8 -*-
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##############################################################################
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#
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# Author: Yannick Vaucher
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# Copyright 2013 Camptocamp SA
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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 Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (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 Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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##############################################################################
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import time
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import base64
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from PyPDF2 import PdfFileReader, PdfFileWriter
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from StringIO import StringIO
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from openerp.netsvc import ExportService
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from openerp.report import report_sxw
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from openerp import pooler
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_POLLING_DELAY = 0.25
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def assemble_pdf(pdf_list):
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"""
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Assemble a list of pdf
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"""
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# Even though we are using PyPDF2 we can't use PdfFileMerger
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# as this issue still exists in mostly used wktohtml reports version
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# http://code.google.com/p/wkhtmltopdf/issues/detail?id=635
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#merger = PdfFileMerger()
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#merger.append(fileobj=StringIO(invoice_pdf))
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#merger.append(fileobj=StringIO(bvr_pdf))
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#with tempfile.TemporaryFile() as merged_pdf:
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#merger.write(merged_pdf)
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#return merged_pdf.read(), 'pdf'
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output = PdfFileWriter()
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for pdf in pdf_list:
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reader = PdfFileReader(StringIO(pdf))
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for page in range(reader.getNumPages()):
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output.addPage(reader.getPage(page))
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s = StringIO()
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output.write(s)
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return s.getvalue()
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class PDFReportAssembler(report_sxw.report_sxw):
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""" PDFReportAssembler allows to put 2 invoice reports in one single pdf"""
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def _generate_all_pdf(self, cr, uid, ids, data, report_ids, context=None):
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"""
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Return a list of pdf encoded in base64
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"""
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pool = pooler.get_pool(cr.dbname)
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report_obj = pool.get('ir.actions.report.xml')
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spool = ExportService._services['report']
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pdf_reports = []
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report_list = report_obj.browse(cr, uid, report_ids, context=context)
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for report in report_list:
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report_key = spool.exp_report(cr.dbname, uid, report.report_name,
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ids, datas=data, context=context)
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while 1:
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res = spool.exp_report_get(cr.dbname, uid, report_key)
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if res.get('state'):
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break
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time.sleep(_POLLING_DELAY)
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pdf = base64.b64decode(res.get('result'))
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pdf_reports.append(pdf)
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return pdf_reports
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def _get_report_ids(self, cr, uid, ids, context=None):
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"""
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Hook to define the list of report to print
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"""
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return []
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def create_single_pdf(self, cr, uid, ids, data, report_xml, context=None):
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"""Call both report to assemble both pdf"""
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report_ids = self._get_report_ids(cr, uid, ids, context=context)
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pdf_reports = self._generate_all_pdf(cr, uid, ids, data, report_ids, context=context)
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pdf_assemblage = assemble_pdf(pdf_reports)
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return pdf_assemblage, 'pdf'
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def create(self, cr, uid, ids, data, context=None):
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"""We override the create function in order to handle generator
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Code taken from report openoffice. Thanks guys :) """
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pool = pooler.get_pool(cr.dbname)
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ir_obj = pool.get('ir.actions.report.xml')
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report_xml_ids = ir_obj.search(cr, uid,
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[('report_name', '=', self.name[7:])], context=context)
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if report_xml_ids:
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report_xml = ir_obj.browse(cr,
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uid,
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report_xml_ids[0],
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context=context)
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report_xml.report_rml = None
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report_xml.report_rml_content = None
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report_xml.report_sxw_content_data = None
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report_xml.report_sxw_content = None
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report_xml.report_sxw = None
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else:
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return super(PDFReportAssembler, self).create(cr, uid, ids, data, context)
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if report_xml.report_type != 'assemblage':
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return super(PDFReportAssembler, self).create(cr, uid, ids, data, context)
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result = self.create_source_pdf(cr, uid, ids, data, report_xml, context)
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if not result:
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return (False, False)
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return result
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