648 lines
27 KiB
Python
648 lines
27 KiB
Python
# -*- coding: utf-8 -*-
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##############################################################################
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#
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# OpenERP, Open Source Management Solution
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# Copyright (C) 2014-Today OpenERP SA (<http://www.openerp.com>).
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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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from openerp.osv import osv
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from openerp.tools.translate import _
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from openerp.tools import DEFAULT_SERVER_DATE_FORMAT, DEFAULT_SERVER_DATETIME_FORMAT, config
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from openerp.osv.fields import float as float_field, function as function_field, datetime as datetime_field
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import os
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import time
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import psutil
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import signal
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import base64
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import logging
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import tempfile
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import lxml.html
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import cStringIO
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import subprocess
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from datetime import datetime
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from distutils.version import LooseVersion
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from pyPdf import PdfFileWriter, PdfFileReader
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_logger = logging.getLogger(__name__)
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class Report(osv.Model):
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_name = "report"
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_description = "Report"
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public_user = None
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#--------------------------------------------------------------------------
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# Extension of ir_ui_view.render with arguments frequently used in reports
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#--------------------------------------------------------------------------
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def get_digits(self, cr, uid, obj=None, f=None, dp=None):
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d = DEFAULT_DIGITS = 2
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if dp:
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decimal_precision_obj = self.pool['decimal.precision']
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ids = decimal_precision_obj.search(cr, uid, [('name', '=', dp)])
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if ids:
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d = decimal_precision_obj.browse(cr, uid, ids)[0].digits
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elif obj and f:
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res_digits = getattr(obj._columns[f], 'digits', lambda x: ((16, DEFAULT_DIGITS)))
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if isinstance(res_digits, tuple):
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d = res_digits[1]
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else:
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d = res_digits(cr)[1]
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elif (hasattr(obj, '_field') and
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isinstance(obj._field, (float_field, function_field)) and
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obj._field.digits):
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d = obj._field.digits[1] or DEFAULT_DIGITS
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return d
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def _get_lang_dict(self, cr, uid):
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pool_lang = self.pool['res.lang']
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lang = self.localcontext.get('lang', 'en_US') or 'en_US'
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lang_ids = pool_lang.search(cr, uid, [('code', '=', lang)])[0]
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lang_obj = pool_lang.browse(cr, uid, lang_ids)
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lang_dict = {
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'lang_obj': lang_obj,
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'date_format': lang_obj.date_format,
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'time_format': lang_obj.time_format
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}
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self.lang_dict.update(lang_dict)
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self.default_lang[lang] = self.lang_dict.copy()
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return True
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def formatLang(self, value, digits=None, date=False, date_time=False, grouping=True, monetary=False, dp=False, currency_obj=False):
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"""
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Assuming 'Account' decimal.precision=3:
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formatLang(value) -> digits=2 (default)
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formatLang(value, digits=4) -> digits=4
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formatLang(value, dp='Account') -> digits=3
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formatLang(value, digits=5, dp='Account') -> digits=5
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"""
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def get_date_length(date_format=DEFAULT_SERVER_DATE_FORMAT):
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return len((datetime.now()).strftime(date_format))
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if digits is None:
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if dp:
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digits = self.get_digits(self.cr, self.uid, dp=dp)
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else:
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digits = self.get_digits(self.cr, self.uid, value)
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if isinstance(value, (str, unicode)) and not value:
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return ''
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if not self.lang_dict_called:
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self._get_lang_dict(self.cr, self.uid)
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self.lang_dict_called = True
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if date or date_time:
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if not str(value):
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return ''
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date_format = self.lang_dict['date_format']
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parse_format = DEFAULT_SERVER_DATE_FORMAT
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if date_time:
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value = value.split('.')[0]
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date_format = date_format + " " + self.lang_dict['time_format']
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parse_format = DEFAULT_SERVER_DATETIME_FORMAT
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if isinstance(value, basestring):
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# FIXME: the trimming is probably unreliable if format includes day/month names
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# and those would need to be translated anyway.
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date = datetime.strptime(value[:get_date_length(parse_format)], parse_format)
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elif isinstance(value, time.struct_time):
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date = datetime(*value[:6])
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else:
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date = datetime(*value.timetuple()[:6])
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if date_time:
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# Convert datetime values to the expected client/context timezone
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date = datetime_field.context_timestamp(cr, uid, timestamp=date, context=self.localcontext)
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return date.strftime(date_format.encode('utf-8'))
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res = self.lang_dict['lang_obj'].format('%.' + str(digits) + 'f', value, grouping=grouping, monetary=monetary)
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if currency_obj:
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if currency_obj.position == 'after':
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res = '%s %s' % (res, currency_obj.symbol)
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elif currency_obj and currency_obj.position == 'before':
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res = '%s %s' % (currency_obj.symbol, res)
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return res
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def render(self, cr, uid, ids, template, values=None, context=None):
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"""Allow to render a QWeb template python-side. This function returns the 'ir.ui.view'
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render but embellish it with some variables/methods used in reports.
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:param values: additionnal methods/variables used in the rendering
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:returns: html representation of the template
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"""
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if values is None:
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values = {}
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if context is None:
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context = {}
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self.cr, self.uid = cr, uid
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self.lang_dict = self.default_lang = {}
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self.lang_dict_called = False
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self.localcontext = {
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'lang': context.get('lang'),
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'tz': context.get('tz'),
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'uid': context.get('uid'),
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}
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self._get_lang_dict(self.cr, self.uid)
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view_obj = self.pool['ir.ui.view']
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def render_doc(doc_id, model, template):
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"""Helper used when a report should be translated into the associated
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partner's lang.
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<t t-foreach="doc_ids" t-as="doc_id">
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<t t-raw="render_doc(doc_id, doc_model, 'module.templatetocall')"/>
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</t>
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:param doc_id: id of the record to translate
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:param model: model of the record to translate
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:param template: name of the template to translate into the partner's lang
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"""
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ctx = context.copy()
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doc = self.pool[model].browse(cr, uid, doc_id, context=ctx)
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qcontext = values.copy()
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# Do not force-translate if we chose to display the report in a specific lang
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if ctx.get('translatable') is True:
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qcontext['o'] = doc
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else:
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ctx['lang'] = doc.partner_id.lang
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qcontext['o'] = self.pool[model].browse(cr, uid, doc_id, context=ctx)
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return view_obj.render(cr, uid, template, qcontext, context=ctx)
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current_user = self.pool['res.users'].browse(cr, uid, uid, context=context)
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# Website independance code
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website = False
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res_company = current_user.company_id
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try:
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from openerp.addons.web.http import request
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if request.website:
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website = request.website
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res_company = request.website.company_id
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except:
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pass
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values.update({
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'time': time,
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'user': current_user,
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'user_id': current_user.id,
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'formatLang': self.formatLang,
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'get_digits': self.get_digits,
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'render_doc': render_doc,
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'website': website,
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'res_company': res_company,
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})
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return view_obj.render(cr, uid, template, values, context=context)
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#--------------------------------------------------------------------------
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# Public report API
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#--------------------------------------------------------------------------
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def get_html(self, cr, uid, ids, report_name, context=None):
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if context is None:
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context = {}
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ids = [int(i) for i in ids.split(',')]
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ids = list(set(ids))
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report = self._get_report_from_name(cr, uid, report_name)
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report_obj = self.pool[report.model]
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docs = report_obj.browse(cr, uid, ids, context=context)
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docargs = {
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'doc_ids': ids,
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'doc_model': report.model,
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'docs': docs,
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}
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return self.render(cr, uid, [], report.report_name, docargs, context=context)
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def get_pdf(self, cr, uid, ids, report_name, html=None, context=None):
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if context is None:
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context = {}
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if html is None:
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html = self.get_html(cr, uid, ids, report_name, context=context)
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html = html.decode('utf-8')
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# Get the report we are working on.
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# Pattern is /report/module.reportname(?a=1)
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report = self._get_report_from_name(cr, uid, report_name)
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# Check attachment_use field. If set to true and an existing pdf is already saved, load
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# this one now. If not, mark save it.
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save_in_attachment = {}
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if report.attachment_use is True:
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save_in_attachment['model'] = report.model
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save_in_attachment['loaded_documents'] = {}
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for record_id in ids:
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obj = self.pool[report.model].browse(cr, uid, record_id)
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filename = eval(report.attachment, {'object': obj, 'time': time})
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if filename is False: # May be false if, for instance, the record is in draft state
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continue
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else:
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alreadyindb = [('datas_fname', '=', filename),
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('res_model', '=', report.model),
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('res_id', '=', record_id)]
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attach_ids = self.pool['ir.attachment'].search(cr, uid, alreadyindb)
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if attach_ids:
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# Add the loaded pdf in the loaded_documents list
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pdf = self.pool['ir.attachment'].browse(cr, uid, attach_ids[0]).datas
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pdf = base64.decodestring(pdf)
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save_in_attachment['loaded_documents'][record_id] = pdf
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_logger.info('The PDF document %s was loaded from the database' % filename)
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else:
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# Mark current document to be saved
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save_in_attachment[id] = filename
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# Get the paperformat associated to the report. If there is not, get the one associated to
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# the company.
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if not report.paperformat_id:
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user = self.pool['res.users'].browse(cr, uid, uid)
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paperformat = user.company_id.paperformat_id
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else:
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paperformat = report.paperformat_id
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# Get the html report.
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#subst = self._get_url_content('/report/static/src/js/subst.js')[0] # Used in age numbering
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subst = ''
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css = '' # Local css
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headerhtml = []
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contenthtml = []
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footerhtml = []
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base_url = self.pool['ir.config_parameter'].get_param(cr, uid, 'web.base.url')
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minimalhtml = """
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<base href="{3}">
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<!DOCTYPE html>
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<html style="height: 0;">
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<head>
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<link href="/report/static/src/css/reset.min.css" rel="stylesheet"/>
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<link href="/web/static/lib/bootstrap/css/bootstrap.css" rel="stylesheet"/>
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<link href="/website/static/src/css/website.css" rel="stylesheet"/>
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<link href="/web/static/lib/fontawesome/css/font-awesome.css" rel="stylesheet"/>
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<style type='text/css'>{0}</style>
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<script type='text/javascript'>{1}</script>
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</head>
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<body class="container" onload='subst()'>
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{2}
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</body>
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</html>"""
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# The retrieved html report must be simplified. We convert it into a xml tree
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# via lxml in order to extract headers, footers and content.
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try:
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root = lxml.html.fromstring(html)
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for node in root.xpath("//html/head/style"):
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css += node.text
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for node in root.xpath("//div[@class='header']"):
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body = lxml.html.tostring(node)
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header = minimalhtml.format(css, subst, body, base_url)
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headerhtml.append(header)
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for node in root.xpath("//div[@class='footer']"):
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body = lxml.html.tostring(node)
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footer = minimalhtml.format(css, subst, body, base_url)
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footerhtml.append(footer)
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for node in root.xpath("//div[@class='page']"):
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# Previously, we marked some reports to be saved in attachment via their ids, so we
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# must set a relation between report ids and report's content. We use the QWeb
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# branding in order to do so: searching after a node having a data-oe-model
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# attribute with the value of the current report model and read its oe-id attribute
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oemodelnode = node.find(".//*[@data-oe-model='" + report.model + "']")
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if oemodelnode is not None:
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reportid = oemodelnode.get('data-oe-id', False)
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if reportid is not False:
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reportid = int(reportid)
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else:
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reportid = False
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body = lxml.html.tostring(node)
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reportcontent = minimalhtml.format(css, '', body, base_url)
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contenthtml.append(tuple([reportid, reportcontent]))
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except lxml.etree.XMLSyntaxError:
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contenthtml = []
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contenthtml.append(html)
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save_in_attachment = {} # Don't save this potentially malformed document
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# Get paperformat arguments set in the root html tag. They are prioritized over
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# paperformat-record arguments.
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specific_paperformat_args = {}
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for attribute in root.items():
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if attribute[0].startswith('data-report-'):
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specific_paperformat_args[attribute[0]] = attribute[1]
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# Execute wkhtmltopdf process.
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pdf = self._generate_wkhtml_pdf(headerhtml, footerhtml, contenthtml, context.get('landscape'), paperformat, specific_paperformat_args, save_in_attachment)
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return pdf
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def get_action(self, cr, uid, ids, report_name, datas=None, context=None):
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"""Return an action of type ir.actions.report.xml.
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:param report_name: Name of the template to generate an action for
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"""
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# TODO: return the action for the ids passed in args
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if context is None:
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context = {}
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if datas is None:
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datas = {}
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report_obj = self.pool.get('ir.actions.report.xml')
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idreport = report_obj.search(cr, uid, [('report_name', '=', report_name)], context=context)
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try:
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report = report_obj.browse(cr, uid, idreport[0], context=context)
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except IndexError:
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raise osv.except_osv(_('Bad Report'),
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_('This report is not loaded into the database.'))
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action = {
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'type': 'ir.actions.report.xml',
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'report_name': report.report_name,
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'report_type': report.report_type,
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'report_file': report.report_file,
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}
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if datas:
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action['datas'] = datas
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return action
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#--------------------------------------------------------------------------
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# Report generation helpers
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#--------------------------------------------------------------------------
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def check_wkhtmltopdf(self):
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"""Check the presence of wkhtmltopdf and return its version. If wkhtmltopdf
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cannot be found, return False.
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"""
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try:
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process = subprocess.Popen(['wkhtmltopdf', '--version'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = process.communicate()
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if err:
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raise
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version = out.splitlines()[1].strip()
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version = version.split(' ')[1]
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if LooseVersion(version) < LooseVersion('0.12.0'):
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_logger.warning('Upgrade WKHTMLTOPDF to (at least) 0.12.0')
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return 'upgrade'
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return True
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except:
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_logger.error('You need WKHTMLTOPDF to print a pdf version of this report.')
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return False
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def _generate_wkhtml_pdf(self, headers, footers, bodies, landscape, paperformat, spec_paperformat_args=None, save_in_attachment=None):
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"""Execute wkhtmltopdf as a subprocess in order to convert html given in input into a pdf
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document.
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:param header: list of string containing the headers
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:param footer: list of string containing the footers
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:param bodies: list of string containing the reports
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:param landscape: boolean to force the pdf to be rendered under a landscape format
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:param paperformat: ir.actions.report.paperformat to generate the wkhtmltopf arguments
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:param specific_paperformat_args: dict of prioritized paperformat arguments
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:param save_in_attachment: dict of reports to save/load in/from the db
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:returns: Content of the pdf as a string
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"""
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command = ['wkhtmltopdf']
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tmp_dir = tempfile.gettempdir()
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command_args = []
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# Passing the cookie in order to resolve URL.
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try:
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from openerp.addons.web.http import request
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command_args.extend(['--cookie', 'session_id', request.httprequest.cookies['session_id']])
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except:
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pass
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# Display arguments
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if paperformat:
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command_args.extend(self._build_wkhtmltopdf_args(paperformat, spec_paperformat_args))
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if landscape and '--orientation' in command_args:
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command_args_copy = list(command_args)
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for index, elem in enumerate(command_args_copy):
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if elem == '--orientation':
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del command_args[index]
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del command_args[index]
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command_args.extend(['--orientation', 'landscape'])
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elif landscape and not '--orientation' in command_args:
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command_args.extend(['--orientation', 'landscape'])
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pdfdocuments = []
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# HTML to PDF thanks to WKhtmltopdf
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for index, reporthtml in enumerate(bodies):
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command_arg_local = []
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pdfreport = tempfile.NamedTemporaryFile(suffix='.pdf', prefix='report.tmp.',
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mode='w+b')
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# Directly load the document if we have it
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if save_in_attachment and save_in_attachment['loaded_documents'].get(reporthtml[0]):
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pdfreport.write(save_in_attachment['loaded_documents'].get(reporthtml[0]))
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pdfreport.flush()
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pdfdocuments.append(pdfreport)
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continue
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# Header stuff
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if headers:
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head_file = tempfile.NamedTemporaryFile(suffix='.html', prefix='report.header.tmp.',
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dir=tmp_dir, mode='w+')
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head_file.write(headers[index])
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head_file.flush()
|
|
command_arg_local.extend(['--header-html', head_file.name])
|
|
|
|
# Footer stuff
|
|
if footers:
|
|
foot_file = tempfile.NamedTemporaryFile(suffix='.html', prefix='report.footer.tmp.',
|
|
dir=tmp_dir, mode='w+')
|
|
foot_file.write(footers[index])
|
|
foot_file.flush()
|
|
command_arg_local.extend(['--footer-html', foot_file.name])
|
|
|
|
# Body stuff
|
|
content_file = tempfile.NamedTemporaryFile(suffix='.html', prefix='report.body.tmp.',
|
|
dir=tmp_dir, mode='w+')
|
|
content_file.write(reporthtml[1])
|
|
content_file.flush()
|
|
|
|
try:
|
|
# If the server is running with only one worker, increase it to two to be able
|
|
# to serve the http request from wkhtmltopdf.
|
|
if config['workers'] == 1:
|
|
ppid = psutil.Process(os.getpid()).ppid
|
|
os.kill(ppid, signal.SIGTTIN)
|
|
|
|
wkhtmltopdf = command + command_args + command_arg_local
|
|
wkhtmltopdf += [content_file.name] + [pdfreport.name]
|
|
|
|
process = subprocess.Popen(wkhtmltopdf, stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE)
|
|
out, err = process.communicate()
|
|
|
|
if config['workers'] == 1:
|
|
os.kill(ppid, signal.SIGTTOU)
|
|
|
|
if process.returncode != 0:
|
|
raise osv.except_osv(_('Report (PDF)'),
|
|
_('wkhtmltopdf failed with error code = %s. '
|
|
'Message: %s') % (str(process.returncode), err))
|
|
|
|
# Save the pdf in attachment if marked
|
|
if reporthtml[0] is not False and save_in_attachment.get(reporthtml[0]):
|
|
attachment = {
|
|
'name': save_in_attachment.get(reporthtml[0]),
|
|
'datas': base64.encodestring(pdfreport.read()),
|
|
'datas_fname': save_in_attachment.get(reporthtml[0]),
|
|
'res_model': save_in_attachment.get('model'),
|
|
'res_id': reporthtml[0],
|
|
}
|
|
request.registry['ir.attachment'].create(request.cr, request.uid, attachment)
|
|
_logger.info('The PDF document %s is now saved in the '
|
|
'database' % attachment['name'])
|
|
|
|
pdfreport.flush()
|
|
pdfdocuments.append(pdfreport)
|
|
|
|
if headers:
|
|
head_file.close()
|
|
if footers:
|
|
foot_file.close()
|
|
except:
|
|
raise
|
|
|
|
# Get and return the full pdf
|
|
if len(pdfdocuments) == 1:
|
|
content = pdfdocuments[0].read()
|
|
pdfdocuments[0].close()
|
|
else:
|
|
content = self._merge_pdf(pdfdocuments)
|
|
|
|
return content
|
|
|
|
def _get_report_from_name(self, cr, uid, report_name):
|
|
"""Get the first record of ir.actions.report.xml having the ``report_name`` as value for
|
|
the field report_name.
|
|
"""
|
|
report_obj = self.pool['ir.actions.report.xml']
|
|
qwebtypes = ['qweb-pdf', 'qweb-html']
|
|
conditions = [('report_type', 'in', qwebtypes), ('report_name', '=', report_name)]
|
|
idreport = report_obj.search(cr, uid, conditions)[0]
|
|
return report_obj.browse(cr, uid, idreport)
|
|
|
|
def _build_wkhtmltopdf_args(self, paperformat, specific_paperformat_args=None):
|
|
"""Build arguments understandable by wkhtmltopdf from an ir.actions.report.paperformat
|
|
record.
|
|
|
|
:paperformat: ir.actions.report.paperformat record associated to a document
|
|
:specific_paperformat_args: a dict containing prioritized wkhtmltopdf arguments
|
|
:returns: list of string containing the wkhtmltopdf arguments
|
|
"""
|
|
command_args = []
|
|
if paperformat.format and paperformat.format != 'custom':
|
|
command_args.extend(['--page-size', paperformat.format])
|
|
|
|
if paperformat.page_height and paperformat.page_width and paperformat.format == 'custom':
|
|
command_args.extend(['--page-width', str(paperformat.page_width) + 'in'])
|
|
command_args.extend(['--page-height', str(paperformat.page_height) + 'in'])
|
|
|
|
if specific_paperformat_args and specific_paperformat_args['data-report-margin-top']:
|
|
command_args.extend(['--margin-top',
|
|
str(specific_paperformat_args['data-report-margin-top'])])
|
|
elif paperformat.margin_top:
|
|
command_args.extend(['--margin-top', str(paperformat.margin_top)])
|
|
|
|
if paperformat.margin_left:
|
|
command_args.extend(['--margin-left', str(paperformat.margin_left)])
|
|
if paperformat.margin_bottom:
|
|
command_args.extend(['--margin-bottom', str(paperformat.margin_bottom)])
|
|
if paperformat.margin_right:
|
|
command_args.extend(['--margin-right', str(paperformat.margin_right)])
|
|
if paperformat.orientation:
|
|
command_args.extend(['--orientation', str(paperformat.orientation)])
|
|
if paperformat.header_spacing:
|
|
command_args.extend(['--header-spacing', str(paperformat.header_spacing)])
|
|
if paperformat.header_line:
|
|
command_args.extend(['--header-line'])
|
|
if paperformat.dpi:
|
|
command_args.extend(['--dpi', str(paperformat.dpi)])
|
|
|
|
return command_args
|
|
|
|
def _merge_pdf(self, documents):
|
|
"""Merge PDF files into one.
|
|
|
|
:param documents: list of pdf files
|
|
:returns: string containing the merged pdf
|
|
"""
|
|
writer = PdfFileWriter()
|
|
for document in documents:
|
|
reader = PdfFileReader(file(document.name, "rb"))
|
|
for page in range(0, reader.getNumPages()):
|
|
writer.addPage(reader.getPage(page))
|
|
document.close()
|
|
merged = cStringIO.StringIO()
|
|
writer.write(merged)
|
|
merged.flush()
|
|
content = merged.read()
|
|
merged.close()
|
|
return content
|
|
|
|
def eval_params(self, dict_param):
|
|
"""Parse a dictionary generated by the webclient (javascript) into a dictionary
|
|
understandable by a wizard controller (python).
|
|
"""
|
|
for key, value in dict_param.iteritems():
|
|
if value.lower() == 'false':
|
|
dict_param[key] = False
|
|
elif value.lower() == 'true':
|
|
dict_param[key] = True
|
|
elif ',' in value:
|
|
dict_param[key] = [int(i) for i in value.split(',')]
|
|
elif '%2C' in value:
|
|
dict_param[key] = [int(i) for i in value.split('%2C')]
|
|
else:
|
|
try:
|
|
i = int(value)
|
|
dict_param[key] = i
|
|
except (ValueError, TypeError):
|
|
pass
|
|
|
|
data = {}
|
|
data['form'] = dict_param
|
|
return data
|