Add progress for generating "results as XLSX" file to download
This commit is contained in:
Lance Edgar
parent
32b98ae818
commit
7d8c57170f
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@ -295,6 +295,13 @@
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${parent.modify_this_page_vars()}
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<script type="text/javascript">
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## TODO: stop checking for buefy here once we only have the one session.pop()
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% if use_buefy and request.session.pop('{}.results_xlsx.generated'.format(route_prefix), False):
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ThisPage.mounted = function() {
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location.href = '${url('{}.results_xlsx_download'.format(route_prefix))}';
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}
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% endif
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## delete single object
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% if master.deletable and master.has_perm('delete') and master.delete_confirm == 'simple':
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ThisPage.methods.deleteObject = function(url) {
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@ -453,4 +460,14 @@
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${h.csrf_token(request)}
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${h.end_form()}
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% endif
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## TODO: can stop checking for buefy above once this legacy chunk is gone
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% if request.session.pop('{}.results_xlsx.generated'.format(route_prefix), False):
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<script type="text/javascript">
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$(function() {
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location.href = '${url('{}.results_xlsx_download'.format(route_prefix))}';
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});
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</script>
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% endif
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% endif
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@ -2704,32 +2704,100 @@ class MasterView(View):
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Download current list results as XLSX.
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"""
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results = self.get_effective_data()
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# start thread to actually do work / generate progress data
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route_prefix = self.get_route_prefix()
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key = '{}.results_xlsx'.format(route_prefix)
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progress = self.make_progress(key)
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thread = Thread(target=self.results_xlsx_thread,
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args=(results, self.request.user.uuid, progress))
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thread.start()
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# send user to progress page
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return self.render_progress(progress, {
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'cancel_url': self.get_index_url(),
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'cancel_msg': "XLSX download was canceled.",
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})
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def results_xlsx_session(self):
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return RattailSession()
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def results_xlsx_thread(self, results, user_uuid, progress):
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"""
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Thread target, responsible for actually generating the Excel file which
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is to be presented for download.
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"""
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route_prefix = self.get_route_prefix()
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session = self.results_xlsx_session()
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try:
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# create folder(s) for output; make sure file doesn't exist
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path = os.path.join(self.rattail_config.datadir(), 'downloads',
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'results-xlsx', route_prefix,
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user_uuid[:2], user_uuid[2:])
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if not os.path.exists(path):
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os.makedirs(path)
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path = os.path.join(path, '{}.xlsx'.format(route_prefix))
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if os.path.exists(path):
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os.remove(path)
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results = results.with_session(session).all()
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fields = self.get_xlsx_fields()
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path = temp_path(suffix='.xlsx')
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writer = ExcelWriter(path, fields, sheet_title=self.get_model_title_plural())
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writer.write_header()
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rows = []
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for obj in results:
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def write(obj, i):
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data = self.get_xlsx_row(obj, fields)
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row = [data[field] for field in fields]
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rows.append(row)
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self.progress_loop(write, results, progress,
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message="Collecting data for Excel")
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def finalize(x, i):
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writer.write_rows(rows)
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writer.auto_freeze()
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writer.auto_filter()
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writer.auto_resize()
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writer.save()
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response = self.request.response
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with open(path, 'rb') as f:
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response.body = f.read()
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os.remove(path)
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self.progress_loop(finalize, [1], progress,
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message="Writing Excel file to disk")
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response.content_length = len(response.body)
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response.content_type = str('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet')
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response.content_disposition = str('attachment; filename={}.xlsx').format(self.get_grid_key())
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return response
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except Exception as error:
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msg = "generating XLSX file for download failed!"
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log.warning(msg, exc_info=True)
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session.rollback()
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session.close()
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if progress:
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progress.session.load()
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progress.session['error'] = True
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progress.session['error_msg'] = "{}: {}".format(
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msg, simple_error(error))
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progress.session.save()
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return
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session.commit()
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session.close()
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if progress:
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progress.session.load()
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progress.session['complete'] = True
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progress.session['success_url'] = self.get_index_url()
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progress.session['extra_session_bits'] = {
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'{}.results_xlsx.generated'.format(route_prefix): True,
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}
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progress.session.save()
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def results_xlsx_download(self):
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route_prefix = self.get_route_prefix()
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user_uuid = self.request.user.uuid
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path = os.path.join(self.rattail_config.datadir(), 'downloads',
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'results-xlsx', route_prefix,
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user_uuid[:2], user_uuid[2:],
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'{}.xlsx'.format(route_prefix))
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return self.file_response(path)
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def get_xlsx_fields(self):
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"""
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@ -3679,6 +3747,9 @@ class MasterView(View):
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config.add_route('{}.results_xlsx'.format(route_prefix), '{}/xlsx'.format(url_prefix))
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config.add_view(cls, attr='results_xlsx', route_name='{}.results_xlsx'.format(route_prefix),
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permission='{}.results_xlsx'.format(permission_prefix))
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config.add_route('{}.results_xlsx_download'.format(route_prefix), '{}/xlsx/download'.format(url_prefix))
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config.add_view(cls, attr='results_xlsx_download', route_name='{}.results_xlsx_download'.format(route_prefix),
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permission='{}.results_xlsx'.format(permission_prefix))
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# quickie (search)
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if cls.supports_quickie_search:
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@ -2,7 +2,7 @@
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################################################################################
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#
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# Rattail -- Retail Software Framework
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# Copyright © 2010-2017 Lance Edgar
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# Copyright © 2010-2020 Lance Edgar
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#
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# This file is part of Rattail.
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#
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@ -26,18 +26,31 @@ Progress Views
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from __future__ import unicode_literals, absolute_import
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import six
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from tailbone.progress import get_progress_session
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def progress(request):
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key = request.matchdict['key']
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session = get_progress_session(request, key, type=request.GET.get('sessiontype'))
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session = get_progress_session(request, key,
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type=request.GET.get('sessiontype'))
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if session.get('complete'):
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msg = session.get('success_msg')
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if msg:
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request.session.flash(msg)
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bits = session.get('extra_session_bits')
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if bits:
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for key, value in six.iteritems(bits):
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request.session[key] = value
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elif session.get('error'):
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request.session.flash(session.get('error_msg', "An unspecified error occurred."), 'error')
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msg = session.get('error_msg', "An unspecified error occurred.")
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request.session.flash(msg, 'error')
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return session
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