tailbone/tailbone/views/batch/core.py
Lance Edgar 2605f5ab79 Fix batch row status breakdown for Buefy themes
also, fix the "import batch from file" feature UI, per Buefy theme
2020-03-02 14:38:06 -06:00

1560 lines
58 KiB
Python

# -*- coding: utf-8; -*-
################################################################################
#
# Rattail -- Retail Software Framework
# Copyright © 2010-2020 Lance Edgar
#
# This file is part of Rattail.
#
# Rattail is free software: you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation, either version 3 of the License, or (at your option) any later
# version.
#
# Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# Rattail. If not, see <http://www.gnu.org/licenses/>.
#
################################################################################
"""
Base views for maintaining "new-style" batches.
"""
from __future__ import unicode_literals, absolute_import
import os
import sys
import json
import datetime
import logging
import socket
import subprocess
import tempfile
from six import StringIO
import json
import six
import sqlalchemy as sa
from sqlalchemy import orm
from rattail.db import model, Session as RattailSession
from rattail.db.util import short_session
from rattail.threads import Thread
from rattail.util import load_object, prettify, simple_error
from rattail.progress import SocketProgress
import colander
import deform
from pyramid.renderers import render_to_response
from pyramid.response import FileResponse
from webhelpers2.html import HTML, tags
from tailbone import forms, grids
from tailbone.db import Session
from tailbone.views import MasterView
from tailbone.util import csrf_token
log = logging.getLogger(__name__)
class EverythingComplete(Exception):
pass
class BatchMasterView(MasterView):
"""
Base class for all "batch master" views.
"""
default_handler_spec = None
has_rows = True
rows_deletable = True
rows_downloadable_csv = True
rows_downloadable_xlsx = True
refreshable = True
refresh_after_create = False
cloneable = False
executable = True
results_executable = False
supports_mobile = True
mobile_filterable = True
mobile_rows_viewable = True
has_worksheet = False
grid_columns = [
'id',
'description',
'created',
'created_by',
'rowcount',
# 'status_code',
# 'complete',
'executed',
'executed_by',
]
form_fields = [
'id',
'description',
'notes',
'created',
'created_by',
'rowcount',
'status_code',
'executed',
'executed_by',
]
row_labels = {
'upc': "UPC",
'item_id': "Item ID",
'status_code': "Status",
}
def __init__(self, request):
super(BatchMasterView, self).__init__(request)
self.handler = self.get_handler()
def get_handler(self):
"""
Returns a `BatchHandler` instance for the view. All (?) custom batch
views should define a default handler class; however this may in all
(?) cases be overridden by config also. The specific setting required
to do so will depend on the 'key' for the type of batch involved, e.g.
assuming the 'vendor_catalog' batch:
.. code-block:: ini
[rattail.batch]
vendor_catalog.handler = myapp.batch.vendorcatalog:CustomCatalogHandler
Note that the 'key' for a batch is generally the same as its primary
table name, although technically it is whatever value returns from the
``batch_key`` attribute of the main batch model class.
"""
key = self.model_class.batch_key
spec = self.rattail_config.get('rattail.batch', '{}.handler'.format(key),
default=self.default_handler_spec)
if spec:
return load_object(spec)(self.rattail_config)
return self.batch_handler_class(self.rattail_config)
def download_path(self, batch, filename):
return self.rattail_config.batch_filepath(batch.batch_key, batch.uuid, filename)
def template_kwargs_view(self, **kwargs):
use_buefy = self.get_use_buefy()
batch = kwargs['instance']
kwargs['batch'] = batch
kwargs['handler'] = self.handler
kwargs['execute_title'] = self.get_execute_title(batch)
kwargs['execute_enabled'] = self.instance_executable(batch)
if kwargs['mobile']:
if self.mobile_rows_creatable:
kwargs.setdefault('add_item_title', "Add Item")
if self.mobile_rows_quickable:
kwargs.setdefault('quick_entry_placeholder', "Enter {}".format(
self.rattail_config.product_key_title()))
if kwargs['execute_enabled']:
url = self.get_action_url('execute', batch)
kwargs['execute_form'] = self.make_execute_form(batch, action_url=url)
else:
kwargs['why_not_execute'] = self.handler.why_not_execute(batch)
kwargs['status_breakdown'] = self.make_status_breakdown(batch)
if use_buefy:
data = [{'title': title, 'count': count}
for title, count in kwargs['status_breakdown']]
Grid = self.get_grid_factory()
kwargs['status_breakdown_grid'] = Grid('batch_row_status_breakdown',
data, ['title', 'count'])
return kwargs
def make_status_breakdown(self, batch, rows=None, status_enum=None):
"""
Returns a simple list of 2-tuples, each of which has the status display
title as first member, and number of rows with that status as second
member.
"""
breakdown = {}
if rows is None:
rows = batch.active_rows()
for row in rows:
if row.status_code is not None:
if row.status_code not in breakdown:
status = status_enum or row.STATUS
breakdown[row.status_code] = {
'code': row.status_code,
'title': status[row.status_code],
'count': 0,
}
breakdown[row.status_code]['count'] += 1
breakdown = [
(status['title'], status['count'])
for code, status in six.iteritems(breakdown)]
return breakdown
def allow_worksheet(self, batch):
return not batch.executed and not batch.complete
def configure_grid(self, g):
super(BatchMasterView, self).configure_grid(g)
# created_by
CreatedBy = orm.aliased(model.User)
g.set_joiner('created_by', lambda q: q.join(CreatedBy,
CreatedBy.uuid == self.model_class.created_by_uuid))
g.set_sorter('created_by', CreatedBy.username)
g.set_filter('created_by', CreatedBy.username)
g.set_label('created_by', "Created by")
# executed
g.filters['executed'].default_active = True
g.filters['executed'].default_verb = 'is_null'
# executed_by
ExecutedBy = orm.aliased(model.User)
g.set_joiner('executed_by', lambda q: q.outerjoin(ExecutedBy,
ExecutedBy.uuid == self.model_class.executed_by_uuid))
g.set_sorter('executed_by', ExecutedBy.username)
g.set_filter('executed_by', ExecutedBy.username)
g.set_label('executed_by', "Executed by")
g.set_sort_defaults('id', 'desc')
g.set_enum('status_code', self.model_class.STATUS)
g.set_renderer('id', self.render_batch_id)
g.set_link('id')
g.set_link('description')
g.set_link('executed')
g.set_label('id', "Batch ID")
g.set_label('rowcount', "Rows")
g.set_label('status_code', "Status")
def render_batch_id(self, batch, column):
return batch.id_str
def template_kwargs_index(self, **kwargs):
route_prefix = self.get_route_prefix()
if self.results_executable:
url = self.request.route_url('{}.execute_results'.format(route_prefix))
kwargs['execute_form'] = self.make_execute_form(action_url=url)
return kwargs
def get_instance_title(self, batch):
if batch.description:
return "{} {}".format(batch.id_str, batch.description)
return batch.id_str
def get_mobile_data(self, session=None):
return super(BatchMasterView, self).get_mobile_data(session=session)\
.order_by(self.model_class.id.desc())
def make_mobile_filters(self):
"""
Returns a set of filters for the mobile grid.
"""
filters = grids.filters.GridFilterSet()
filters['status'] = MobileBatchStatusFilter(self.model_class, 'status', default_value='pending')
return filters
def configure_form(self, f):
super(BatchMasterView, self).configure_form(f)
# id
f.set_readonly('id')
f.set_renderer('id', self.render_batch_id)
f.set_label('id', "Batch ID")
# created
f.set_readonly('created')
f.set_readonly('created_by')
f.set_renderer('created_by', self.render_user)
f.set_label('created_by', "Created by")
# cognized
f.set_renderer('cognized_by', self.render_user)
f.set_label('cognized_by', "Cognized by")
# row count
f.set_readonly('rowcount')
f.set_label('rowcount', "Row Count")
# status_code
if self.creating:
f.remove_field('status_code')
else:
f.set_readonly('status_code')
f.set_renderer('status_code', self.make_status_renderer(self.model_class.STATUS))
f.set_label('status_code', "Status")
# complete
if self.viewing:
f.set_renderer('complete', self.render_complete)
# executed
f.set_readonly('executed')
f.set_readonly('executed_by')
f.set_renderer('executed_by', self.render_user)
f.set_label('executed_by', "Executed by")
# notes
f.set_type('notes', 'text')
# if self.creating and self.request.user:
# batch = fs.model
# batch.created_by_uuid = self.request.user.uuid
if self.creating:
f.remove_fields('id',
'rowcount',
'created',
'created_by',
'cognized',
'cognized_by',
'executed',
'executed_by',
'purge')
else: # not creating
batch = self.get_instance()
if not batch.executed:
f.remove_fields('executed',
'executed_by')
def make_status_renderer(self, enum):
def render_status(batch, field):
value = batch.status_code
if value is None:
return ""
status_code_text = enum.get(value, six.text_type(value))
if batch.status_text:
return HTML.tag('span', title=batch.status_text, c=status_code_text)
return status_code_text
return render_status
def render_complete(self, batch, field):
permission_prefix = self.get_permission_prefix()
use_buefy = self.get_use_buefy()
text = "Yes" if batch.complete else "No"
if batch.executed or not self.request.has_perm('{}.edit'.format(permission_prefix)):
return text
if batch.complete:
label = "Mark as NOT Complete"
value = 'false'
else:
label = "Mark as Complete"
value = 'true'
kwargs = {}
if not use_buefy:
kwargs['class_'] = 'autodisable'
begin_form = tags.form(self.get_action_url('toggle_complete', batch), **kwargs)
if use_buefy:
submit = HTML.tag('once-button',
type='is-primary',
native_type='submit',
text=label)
else:
submit = tags.submit('submit', label)
form = [
begin_form,
csrf_token(self.request),
tags.hidden('complete', value=value),
submit,
tags.end_form(),
]
if use_buefy:
text = HTML.tag('div', class_='control', c=text)
form = HTML.tag('div', class_='control', c=form)
content = [
HTML.tag('nav', class_='level',
c=[HTML.tag('div', class_='level-left', c=[
text,
HTML.literal(' &nbsp; &nbsp; '),
form,
])]),
]
else:
content = [
text,
HTML.literal(' &nbsp; '),
] + form
return HTML.tag('div', c=content)
def render_user(self, batch, field):
user = getattr(batch, field)
if not user:
return ""
title = six.text_type(user)
url = self.request.route_url('users.view', uuid=user.uuid)
return tags.link_to(title, url)
def configure_mobile_form(self, f):
super(BatchMasterView, self).configure_mobile_form(f)
batch = f.model_instance
if self.creating:
f.remove_fields('id',
'rowcount',
'created',
'created_by',
'cognized',
'cognized_by',
'executed',
'executed_by',
'purge')
else: # not creating
if not batch.executed:
f.remove_fields('executed',
'executed_by')
if not batch.complete:
f.remove_field('complete')
def save_create_form(self, form):
uploads = self.normalize_uploads(form)
self.before_create(form)
session = self.Session()
with session.no_autoflush:
# transfer form data to batch instance
batch = self.objectify(form, self.form_deserialized)
# current user is batch creator
batch.created_by = self.request.user or self.late_login_user()
# obtain kwargs for making batch via handler, below
kwargs = self.get_batch_kwargs(batch)
# TODO: this needs work yet surely...why is this an issue?
# treat 'filename' field specially, for some reason it can be a filedict?
if 'filename' in kwargs and not isinstance(kwargs['filename'], six.string_types):
kwargs['filename'] = '' # null not allowed
# TODO: is this still necessary with colander?
# destroy initial batch and re-make using handler
# if batch in self.Session:
# self.Session.expunge(batch)
batch = self.handler.make_batch(session, **kwargs)
self.Session.flush()
self.process_uploads(batch, form, uploads)
return batch
def process_uploads(self, batch, form, uploads):
for key, upload in six.iteritems(uploads):
self.handler.set_input_file(batch, upload['temp_path'], attr=key)
os.remove(upload['temp_path'])
os.rmdir(upload['tempdir'])
def save_mobile_create_form(self, form):
self.before_create(form)
session = self.Session()
with session.no_autoflush:
# transfer form data to batch instance
batch = self.objectify(form, self.form_deserialized)
# current user is batch creator
batch.created_by = self.request.user
# TODO: is this still necessary with colander?
# destroy initial batch and re-make using handler
kwargs = self.get_batch_kwargs(batch)
if batch in session:
session.expunge(batch)
batch = self.handler.make_batch(session, **kwargs)
session.flush()
return batch
def get_batch_kwargs(self, batch, mobile=False):
"""
Return a kwargs dict for use with ``self.handler.make_batch()``, using
the given batch as a template.
"""
kwargs = {}
if batch.created_by:
kwargs['created_by'] = batch.created_by
elif batch.created_by_uuid:
kwargs['created_by_uuid'] = batch.created_by_uuid
kwargs['description'] = batch.description
kwargs['notes'] = batch.notes
if hasattr(batch, 'filename'):
kwargs['filename'] = batch.filename
kwargs['complete'] = batch.complete
return kwargs
# TODO: deprecate / remove this (is it used at all now?)
def init_batch(self, batch):
"""
Initialize a new batch. Derived classes can override this to
effectively provide default values for a batch, etc. This method is
invoked after a batch has been fully prepared for insertion to the
database, but before the push to the database occurs.
Note that the return value of this function matters; if it is boolean
false then the batch will not be persisted at all, and the user will be
redirected to the "create batch" page.
"""
return True
def redirect_after_create(self, batch, mobile=False):
if self.handler.should_populate(batch):
return self.redirect(self.get_action_url('prefill', batch, mobile=mobile))
elif self.refresh_after_create:
return self.redirect(self.get_action_url('refresh', batch, mobile=mobile))
else:
return self.redirect(self.get_action_url('view', batch, mobile=mobile))
def template_kwargs_edit(self, **kwargs):
batch = kwargs['instance']
kwargs['batch'] = batch
return kwargs
def toggle_complete(self):
batch = self.get_instance()
if batch.executed:
self.request.session.flash("Request ignored, since batch has already been executed")
else:
form = forms.Form(schema=ToggleComplete(), request=self.request)
if form.validate(newstyle=True):
if form.validated['complete']:
self.mark_batch_complete(batch)
else:
self.mark_batch_incomplete(batch)
return self.redirect(self.get_action_url('view', batch))
def mark_batch_complete(self, batch):
self.handler.mark_complete(batch)
def mark_batch_incomplete(self, batch):
self.handler.mark_incomplete(batch)
def mobile_mark_complete(self):
batch = self.get_instance()
self.mark_batch_complete(batch)
return self.redirect(self.get_index_url(mobile=True))
def mobile_mark_pending(self):
batch = self.get_instance()
self.mark_batch_incomplete(batch)
return self.redirect(self.get_action_url('view', batch, mobile=True))
def rows_creatable_for(self, batch):
"""
Only allow creating new rows on a batch if it hasn't yet been executed
or marked complete.
"""
if batch.executed:
return False
if batch.complete:
return False
return True
def rows_quickable_for(self, batch):
"""
Must return boolean indicating whether the "quick row" feature should
be allowed for the given batch. By default, returns ``False`` if batch
has already been executed or marked complete, and ``True`` otherwise.
"""
if batch.executed:
return False
if batch.complete:
return False
return True
def configure_row_grid(self, g):
super(BatchMasterView, self).configure_row_grid(g)
if 'status_code' in g.filters:
g.filters['status_code'].set_value_renderer(grids.filters.EnumValueRenderer(self.model_row_class.STATUS))
g.set_sort_defaults('sequence')
if self.model_row_class:
g.set_enum('status_code', self.model_row_class.STATUS)
g.set_renderer('status_code', self.render_row_status)
g.set_label('sequence', "Seq.")
g.set_label('status_code', "Status")
g.set_label('item_id', "Item ID")
g.set_link('sequence')
def get_row_status_enum(self):
return self.model_row_class.STATUS
def render_row_status(self, row, column):
code = row.status_code
if code is None:
return ""
text = self.get_row_status_enum().get(code, six.text_type(code))
if row.status_text:
return HTML.tag('span', title=row.status_text, c=text)
return text
def create_row(self):
"""
Only allow creating a new row if the batch hasn't yet been executed.
"""
batch = self.get_instance()
if batch.executed:
self.request.session.flash("You cannot add new rows to a batch which has been executed")
return self.redirect(self.get_action_url('view', batch))
return super(BatchMasterView, self).create_row()
def mobile_create_row(self):
"""
Only allow creating a new row if the batch hasn't yet been executed.
"""
batch = self.get_instance()
if batch.executed:
self.request.session.flash("You cannot add new rows to a batch which has been executed")
return self.redirect(self.get_action_url('view', batch, mobile=True))
return super(BatchMasterView, self).mobile_create_row()
def save_create_row_form(self, form):
batch = self.get_instance()
row = self.objectify(form, self.form_deserialized)
self.handler.add_row(batch, row)
self.Session.flush()
return row
def after_create_row(self, row):
self.handler.refresh_row(row)
def configure_row_form(self, f):
super(BatchMasterView, self).configure_row_form(f)
# sequence
f.set_readonly('sequence')
# status_code
if self.model_row_class:
f.set_enum('status_code', self.model_row_class.STATUS)
f.set_renderer('status_code', self.render_row_status)
f.set_readonly('status_code')
f.set_label('status_code', "Status")
# status text
f.set_readonly('status_text')
def configure_mobile_row_form(self, f):
super(BatchMasterView, self).configure_mobile_row_form(f)
# sequence
f.set_readonly('sequence')
# status_code
if self.model_row_class:
f.set_enum('status_code', self.model_row_class.STATUS)
f.set_renderer('status_code', self.render_row_status)
f.set_readonly('status_code')
f.set_label('status_code', "Status")
def make_default_row_grid_tools(self, batch):
if self.rows_creatable and not batch.executed and not batch.complete:
permission_prefix = self.get_permission_prefix()
if self.request.has_perm('{}.create_row'.format(permission_prefix)):
link = tags.link_to("Create a new {}".format(self.get_row_model_title()),
self.get_action_url('create_row', batch))
return HTML.tag('p', c=[link])
def make_batch_row_grid_tools(self, batch):
if self.rows_bulk_deletable and not batch.executed and self.request.has_perm('{}.delete_rows'.format(self.get_permission_prefix())):
url = self.request.route_url('{}.delete_rows'.format(self.get_route_prefix()), uuid=batch.uuid)
return HTML.tag('p', c=[tags.link_to("Delete all rows matching current search", url)])
def make_row_grid_kwargs(self, **kwargs):
"""
Whether or not rows may be edited or deleted will depend partially on
whether the parent batch has been executed.
"""
batch = self.get_instance()
# TODO: most of this logic is copied from MasterView, should refactor/merge somehow...
if 'main_actions' not in kwargs:
actions = []
use_buefy = self.get_use_buefy()
# view action
if self.rows_viewable:
view = lambda r, i: self.get_row_action_url('view', r)
icon = 'eye' if use_buefy else 'zoomin'
actions.append(self.make_action('view', icon=icon, url=view))
# edit and delete are NOT allowed after execution, or if batch is "complete"
if not batch.executed and not batch.complete:
# edit action
if self.rows_editable and self.has_perm('edit_row'):
icon = 'edit' if use_buefy else 'pencil'
actions.append(self.make_action('edit', icon=icon, url=self.row_edit_action_url))
# delete action
if self.rows_deletable and self.has_perm('delete_row'):
actions.append(self.make_action('delete', icon='trash', url=self.row_delete_action_url))
kwargs.setdefault('delete_speedbump', self.rows_deletable_speedbump)
kwargs['main_actions'] = actions
return super(BatchMasterView, self).make_row_grid_kwargs(**kwargs)
def make_row_grid_tools(self, batch):
return (self.make_default_row_grid_tools(batch) or '') + (self.make_batch_row_grid_tools(batch) or '')
def sort_mobile_row_data(self, query):
return query.order_by(self.model_row_class.sequence)
def redirect_after_edit(self, batch):
"""
If refresh flag is set, do that; otherwise go (back) to view/edit page.
"""
if self.request.params.get('refresh') == 'true':
return self.redirect(self.get_action_url('refresh', batch))
return self.redirect(self.get_action_url('view', batch))
def delete_instance(self, batch):
"""
Delete all data (files etc.) for the batch.
"""
self.handler.delete(batch)
super(BatchMasterView, self).delete_instance(batch)
def get_fallback_templates(self, template, mobile=False):
if mobile:
return [
'/mobile/batch/{}.mako'.format(template),
'/mobile/master/{}.mako'.format(template),
]
return [
'/batch/{}.mako'.format(template),
'/master/{}.mako'.format(template),
]
def editable_instance(self, batch):
return not bool(batch.executed)
def after_edit_row(self, row):
self.handler.refresh_row(row)
def instance_executable(self, batch=None):
return self.handler.executable(batch)
def batch_refreshable(self, batch):
"""
Return a boolean indicating whether the given batch should allow a
refresh operation.
"""
# TODO: deprecate/remove this?
if not self.refreshable:
return False
# (this is how it should be done i think..)
if callable(self.handler.refreshable):
return self.handler.refreshable(batch)
# TODO: deprecate/remove this
return self.handler.refreshable and not batch.executed
def has_execution_options(self, batch=None):
return bool(self.execution_options_schema)
# TODO
execution_options_schema = None
def make_execute_schema(self, batch):
return self.execution_options_schema().bind(batch=batch)
def make_execute_form(self, batch=None, **kwargs):
"""
Return a proper Form for execution options.
"""
defaults = {}
route_prefix = self.get_route_prefix()
if self.has_execution_options(batch):
if batch is None:
batch = self.model_class
schema = self.make_execute_schema(batch)
for field in schema:
# if field does not yet have a default, maybe provide one from session storage
if field.default is colander.null:
key = 'batch.{}.execute_option.{}'.format(batch.batch_key, field.name)
if key in self.request.session:
defaults[field.name] = self.request.session[key]
# make sure field label is preserved
if field.title:
labels = kwargs.setdefault('labels', {})
labels[field.name] = field.title
else:
schema = colander.Schema()
kwargs['use_buefy'] = self.get_use_buefy()
kwargs['component'] = 'execute-form'
return forms.Form(schema=schema, request=self.request, defaults=defaults, **kwargs)
def get_execute_title(self, batch):
if hasattr(self.handler, 'get_execute_title'):
return self.handler.get_execute_title(batch)
return "Execute Batch"
def handler_action(self, batch, batch_action, **kwargs):
"""
View which will attempt to refresh all data for the batch. What
exactly this means will depend on the type of batch etc.
"""
route_prefix = self.get_route_prefix()
permission_prefix = self.get_permission_prefix()
user = self.request.user
user_uuid = user.uuid if user else None
username = user.username if user else None
key = '{}.{}'.format(self.model_class.__tablename__, batch_action)
progress = self.make_progress(key)
# must ensure versioning is *disabled* during action, if handler says so
allow_versioning = self.handler.allow_versioning(batch_action)
if not allow_versioning and self.rattail_config.versioning_enabled():
can_cancel = False
# make socket for progress thread to listen to action thread
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.bind(('127.0.0.1', 0))
sock.listen(1)
port = sock.getsockname()[1]
# launch thread to monitor progress
success_url = self.get_action_url('view', batch)
thread = Thread(target=self.progress_thread, args=(sock, success_url, progress))
thread.start()
# launch thread to invoke handler action
thread = Thread(target=self.action_subprocess_thread,
args=(batch.uuid, port, username, batch_action, progress),
kwargs=kwargs)
thread.start()
else: # either versioning is disabled, or handler doesn't mind
can_cancel = True
# launch thread to populate batch; that will update session progress directly
target = getattr(self, '{}_thread'.format(batch_action))
thread = Thread(target=target, args=(batch.uuid, user_uuid, progress), kwargs=kwargs)
thread.start()
return self.render_progress(progress, {
'can_cancel': can_cancel,
'cancel_url': self.get_action_url('view', batch),
'cancel_msg': "{} of batch was canceled.".format(batch_action.capitalize()),
})
def progress_thread(self, sock, success_url, progress):
"""
This method is meant to be used as a thread target. Its job is to read
progress data from ``connection`` and update the session progress
accordingly. When a final "process complete" indication is read, the
socket will be closed and the thread will end.
"""
while True:
try:
self.process_progress(sock, progress)
except EverythingComplete:
break
# close server socket
sock.close()
# finalize session progress
progress.session.load()
progress.session['complete'] = True
if callable(success_url):
success_url = success_url()
progress.session['success_url'] = success_url
progress.session.save()
def process_progress(self, sock, progress):
"""
This method will accept a client connection on the given socket, and
then update the given progress object according to data written by the
client.
"""
connection, client_address = sock.accept()
active_progress = None
# TODO: make this configurable?
suffix = "\n\n.".encode('utf_8')
data = b''
# listen for progress info, update session progress as needed
while True:
# accumulate data bytestring until we see the suffix
byte = connection.recv(1)
data += byte
if data.endswith(suffix):
# strip suffix, interpret data as JSON
data = data[:-len(suffix)]
if six.PY3:
data = data.decode('utf_8')
data = json.loads(data)
if data.get('everything_complete'):
if active_progress:
active_progress.finish()
raise EverythingComplete
elif data.get('process_complete'):
active_progress.finish()
active_progress = None
break
elif 'value' in data:
if not active_progress:
active_progress = progress(data['message'], data['maximum'])
active_progress.update(data['value'])
# reset data buffer
data = b''
# close client connection
connection.close()
def launch_subprocess(self, port=None, username=None,
command='rattail', command_args=None,
subcommand=None, subcommand_args=None):
# construct command
prefix = self.rattail_config.get('rattail', 'command_prefix',
default=sys.prefix)
cmd = [os.path.join(prefix, 'bin/{}'.format(command))]
for path in self.rattail_config.files_read:
cmd.extend(['--config', path])
if username:
cmd.extend(['--runas', username])
if command_args:
cmd.extend(command_args)
cmd.extend([
'--progress',
'--progress-socket', '127.0.0.1:{}'.format(port),
subcommand,
])
if subcommand_args:
cmd.extend(subcommand_args)
# run command in subprocess
log.debug("launching command in subprocess: %s", cmd)
subprocess.check_call(cmd)
def action_subprocess_thread(self, batch_uuid, port, username, handler_action, progress, **kwargs):
"""
This method is sort of an alternative thread target for batch actions,
to be used in the event versioning is enabled for the main process but
the handler says versioning must be avoided during the action. It must
launch a separate process with versioning disabled in order to act on
the batch.
"""
# figure out the (sub)command args we'll be passing
subargs = [
'--batch-type',
self.handler.batch_key,
batch_uuid,
]
if handler_action == 'execute' and kwargs:
subargs.extend([
'--kwargs',
json.dumps(kwargs),
])
# invoke command to act on batch in separate process
try:
self.launch_subprocess(port=port, username=username,
command='rattail',
command_args=[
'--no-versioning',
],
subcommand='{}-batch'.format(handler_action),
subcommand_args=subargs)
except Exception as error:
log.warning("%s of '%s' batch failed: %s", handler_action, self.handler.batch_key, batch_uuid, exc_info=True)
# TODO: write error info to socket
# if progress:
# progress.session.load()
# progress.session['error'] = True
# progress.session['error_msg'] = "Batch population failed: {} - {}".format(error.__class__.__name__, error)
# progress.session.save()
return
models = getattr(self.handler, 'version_catchup_{}'.format(handler_action), None)
if models:
self.catchup_versions(port, batch_uuid, username, *models)
suffix = "\n\n.".encode('utf_8')
cxn = socket.create_connection(('127.0.0.1', port))
data = json.dumps({
'everything_complete': True,
})
if six.PY3:
data = data.encode('utf_8')
cxn.send(data)
cxn.send(suffix)
cxn.close()
def catchup_versions(self, port, batch_uuid, username, *models):
with short_session() as s:
batch = s.query(self.model_class).get(batch_uuid)
batch_id = batch.id_str
description = six.text_type(batch)
self.launch_subprocess(
port=port, username=username,
command='rattail',
subcommand='import-versions',
subcommand_args=[
'--comment',
"version catch-up for '{}' batch {}: {}".format(self.handler.batch_key, batch_id, description),
] + list(models))
def prefill(self):
"""
View which will attempt to prefill all data for the batch. What
exactly this means will depend on the type of batch etc.
"""
batch = self.get_instance()
return self.handler_action(batch, 'populate')
def populate_thread(self, batch_uuid, user_uuid, progress, **kwargs):
"""
Thread target for populating batch data with progress indicator.
"""
# mustn't use tailbone web session here
session = RattailSession()
batch = session.query(self.model_class).get(batch_uuid)
user = session.query(model.User).get(user_uuid)
try:
self.handler.do_populate(batch, user, progress=progress)
except Exception as error:
session.rollback()
log.warning("batch population failed: %s", batch, exc_info=True)
session.close()
if progress:
progress.session.load()
progress.session['error'] = True
progress.session['error_msg'] = "Batch population failed: {}".format(
simple_error(error))
progress.session.save()
return
session.commit()
session.refresh(batch)
session.close()
# finalize progress
if progress:
progress.session.load()
progress.session['complete'] = True
progress.session['success_url'] = self.get_action_url('view', batch)
progress.session.save()
def refresh(self):
"""
View which will attempt to refresh all data for the batch. What
exactly this means will depend on the type of batch etc.
"""
batch = self.get_instance()
return self.handler_action(batch, 'refresh')
def refresh_data(self, session, batch, user, progress=None):
"""
Instruct the batch handler to refresh all data for the batch.
"""
# TODO: deprecate/remove this
if hasattr(self.handler, 'refresh_data'):
self.handler.refresh_data(session, batch, progress=progress)
batch.cognized = datetime.datetime.utcnow()
batch.cognized_by = cognizer or session.merge(self.request.user)
else: # the future
user = user or session.merge(self.request.user)
self.handler.do_refresh(batch, user, progress=progress)
def refresh_thread(self, batch_uuid, user_uuid, progress, **kwargs):
"""
Thread target for refreshing batch data with progress indicator.
"""
# Refresh data for the batch, with progress. Note that we must use the
# rattail session here; can't use tailbone because it has web request
# transaction binding etc.
session = RattailSession()
batch = session.query(self.model_class).get(batch_uuid)
cognizer = session.query(model.User).get(user_uuid) if user_uuid else None
try:
self.refresh_data(session, batch, cognizer, progress=progress)
except Exception as error:
session.rollback()
log.warning("refreshing data for batch failed: {}".format(batch), exc_info=True)
session.close()
if progress:
progress.session.load()
progress.session['error'] = True
progress.session['error_msg'] = "Data refresh failed: {}".format(
simple_error(error))
progress.session.save()
return
session.commit()
session.refresh(batch)
session.close()
# Finalize progress indicator.
if progress:
progress.session.load()
progress.session['complete'] = True
progress.session['success_url'] = self.get_action_url('view', batch)
progress.session.save()
########################################
# batch rows
########################################
def get_row_instance_title(self, row):
return "Row {}".format(row.sequence)
hide_row_status_codes = []
def get_row_data(self, batch):
"""
Generate the base data set for a rows grid.
"""
query = self.Session.query(self.model_row_class)\
.filter(self.model_row_class.batch == batch)\
.filter(self.model_row_class.removed == False)
if self.hide_row_status_codes:
query = query.filter(~self.model_row_class.status_code.in_(self.hide_row_status_codes))
return query
def row_editable(self, row):
"""
Batch rows are editable only until batch is complete or executed.
"""
batch = self.get_parent(row)
return self.rows_editable and not batch.executed and not batch.complete
def row_deletable(self, row):
"""
Batch rows are deletable only until batch is complete or executed.
"""
if self.rows_deletable:
batch = self.get_parent(row)
if not batch.executed and not batch.complete:
return True
return False
def template_kwargs_view_row(self, **kwargs):
kwargs['batch_model_title'] = kwargs['parent_model_title']
# TODO: should these be set somewhere else?
kwargs['row'] = kwargs['instance']
kwargs['batch'] = kwargs['row'].batch
return kwargs
def get_parent(self, row):
return row.batch
def delete_row_object(self, row):
"""
Perform the actual deletion of given row object.
"""
self.handler.do_remove_row(row)
def bulk_delete_rows(self):
"""
"Delete" all rows matching the current row grid view query. This sets
the ``removed`` flag on the rows but does not truly delete them.
"""
batch = self.get_instance()
query = self.get_effective_row_data(sort=False)
# TODO: this should surely be handled by the handler...
if batch.rowcount is not None:
batch.rowcount -= query.count()
query.update({'removed': True}, synchronize_session=False)
self.Session.refresh(batch)
self.handler.refresh_batch_status(batch)
return self.redirect(self.get_action_url('view', batch))
def execute(self):
"""
Execute a batch. Starts a separate thread for the execution, and
displays a progress indicator page.
"""
batch = self.get_instance()
self.executing = True
form = self.make_execute_form(batch)
if form.validate(newstyle=True):
kwargs = dict(form.validated)
# cache options to use as defaults next time
for key, value in form.validated.items():
self.request.session['batch.{}.execute_option.{}'.format(batch.batch_key, key)] = value
return self.handler_action(batch, 'execute', **kwargs)
self.request.session.flash("Invalid request: {}".format(form.make_deform_form().error), 'error')
return self.redirect(self.get_action_url('view', batch))
def mobile_execute(self):
"""
Mobile view which can prompt user for execution options if applicable,
and/or execute a batch. For now this is done in a "blocking" fashion,
i.e. no progress bar.
"""
batch = self.get_instance()
model_title = self.get_model_title()
instance_title = self.get_instance_title(batch)
view_url = self.get_action_url('view', batch, mobile=True)
self.executing = True
form = self.make_execute_form(batch)
if form.validate(newstyle=True):
kwargs = dict(form.validated)
# cache options to use as defaults next time
for key, value in form.validated.items():
self.request.session['batch.{}.execute_option.{}'.format(batch.batch_key, key)] = value
try:
result = self.handler.execute(batch, user=self.request.user, **kwargs)
except Exception as err:
log.exception("failed to execute %s %s", model_title, batch.id_str)
self.request.session.flash(self.execute_error_message(err), 'error')
else:
if result:
batch.executed = datetime.datetime.utcnow()
batch.executed_by = self.request.user
self.request.session.flash("{} was executed: {}".format(model_title, instance_title))
else:
log.error("not sure why, but failed to execute %s %s: %s", model_title, batch.id_str, batch)
self.request.session.flash("Failed to execute {}: {}".format(model_title, err), 'error')
return self.redirect(view_url)
form.mobile = True
form.submit_label = "Execute"
form.cancel_url = view_url
return self.render_to_response('execute', {
'form': form,
'instance_title': instance_title,
'instance_url': view_url,
}, mobile=True)
def execute_error_message(self, error):
return "Batch execution failed: {}".format(simple_error(error))
def execute_thread(self, batch_uuid, user_uuid, progress, **kwargs):
"""
Thread target for executing a batch with progress indicator.
"""
# Execute the batch, with progress. Note that we must use the rattail
# session here; can't use tailbone because it has web request
# transaction binding etc.
session = RattailSession()
batch = session.query(self.model_class).get(batch_uuid)
user = session.query(model.User).get(user_uuid)
try:
result = self.handler.do_execute(batch, user=user, progress=progress, **kwargs)
# If anything goes wrong, rollback and log the error etc.
except Exception as error:
session.rollback()
log.exception("execution failed for batch: {}".format(batch))
session.close()
if progress:
progress.session.load()
progress.session['error'] = True
progress.session['error_msg'] = self.execute_error_message(error)
progress.session.save()
# If no error, check result flag (false means user canceled).
else:
if result:
session.commit()
# TODO: this doesn't always work...?
self.request.session.flash("{} has been executed: {}".format(
self.get_model_title(), batch.id_str))
else:
session.rollback()
session.refresh(batch)
success_url = self.get_execute_success_url(batch, result, **kwargs)
session.close()
if progress:
progress.session.load()
progress.session['complete'] = True
progress.session['success_url'] = success_url
progress.session.save()
def get_execute_success_url(self, batch, result, **kwargs):
return self.get_action_url('view', batch)
def execute_results(self):
"""
Execute all batches which are returned from the current index query.
Starts a separate thread for the execution, and displays a progress
indicator page.
"""
form = self.make_execute_form()
if form.validate(newstyle=True):
kwargs = dict(form.validated)
# cache options to use as defaults next time
for key, value in form.validated.items():
self.request.session['batch.{}.execute_option.{}'.format(self.model_class.batch_key, key)] = value
key = '{}.execute_results'.format(self.model_class.__tablename__)
batches = self.get_effective_data()
progress = self.make_progress(key)
kwargs['progress'] = progress
thread = Thread(target=self.execute_results_thread, args=(batches, self.request.user.uuid), kwargs=kwargs)
thread.start()
return self.render_progress(progress, {
'cancel_url': self.get_index_url(),
'cancel_msg': "Batch execution was canceled",
})
self.request.session.flash("Invalid request: {}".format(form.make_deform_form().error), 'error')
return self.redirect(self.get_index_url())
def execute_results_thread(self, batches, user_uuid, progress=None, **kwargs):
"""
Thread target for executing multiple batches with progress indicator.
"""
session = RattailSession()
batches = batches.with_session(session).all()
user = session.query(model.User).get(user_uuid)
try:
result = self.handler.execute_many(batches, user=user, progress=progress, **kwargs)
# If anything goes wrong, rollback and log the error etc.
except Exception as error:
session.rollback()
log.exception("execution failed for batch results")
session.close()
if progress:
progress.session.load()
progress.session['error'] = True
progress.session['error_msg'] = self.execute_error_message(error)
progress.session.save()
# If no error, check result flag (false means user canceled).
else:
if result:
session.commit()
# TODO: this doesn't always work...?
self.request.session.flash("{} {} were executed".format(
len(batches), self.get_model_title_plural()))
success_url = self.get_execute_results_success_url(result, **kwargs)
else:
session.rollback()
success_url = self.get_index_url()
session.close()
if progress:
progress.session.load()
progress.session['complete'] = True
progress.session['success_url'] = success_url
progress.session.save()
def get_execute_results_success_url(self, result, **kwargs):
return self.get_index_url()
def get_row_csv_fields(self):
fields = super(BatchMasterView, self).get_row_csv_fields()
fields = [field for field in fields
if field not in ('uuid', 'batch_uuid', 'removed')]
return fields
def get_row_results_csv_filename(self, batch):
return '{}.{}.csv'.format(self.get_route_prefix(), batch.id_str)
def get_row_results_xlsx_filename(self, batch):
return '{}.{}.xlsx'.format(self.get_route_prefix(), batch.id_str)
def clone(self):
"""
Clone current batch as new batch
"""
batch = self.get_instance()
batch = self.handler.clone(batch, created_by=self.request.user)
return self.redirect(self.get_action_url('view', batch))
@classmethod
def defaults(cls, config):
cls._batch_defaults(config)
cls._defaults(config)
@classmethod
def _batch_defaults(cls, config):
model_key = cls.get_model_key()
route_prefix = cls.get_route_prefix()
url_prefix = cls.get_url_prefix()
permission_prefix = cls.get_permission_prefix()
model_title = cls.get_model_title()
model_title_plural = cls.get_model_title_plural()
# TODO: currently must do this here (in addition to `_defaults()` or
# else the perm group label will not display correctly...
config.add_tailbone_permission_group(permission_prefix, model_title_plural, overwrite=False)
# populate row data
config.add_route('{}.prefill'.format(route_prefix), '{}/{{uuid}}/prefill'.format(url_prefix))
config.add_view(cls, attr='prefill', route_name='{}.prefill'.format(route_prefix),
permission='{}.create'.format(permission_prefix))
# worksheet
if cls.has_worksheet:
config.add_tailbone_permission(permission_prefix, '{}.worksheet'.format(permission_prefix),
"Edit {} data as worksheet".format(model_title))
config.add_route('{}.worksheet'.format(route_prefix), '{}/{{{}}}/worksheet'.format(url_prefix, model_key))
config.add_view(cls, attr='worksheet', route_name='{}.worksheet'.format(route_prefix),
permission='{}.worksheet'.format(permission_prefix))
config.add_route('{}.worksheet_update'.format(route_prefix), '{}/{{{}}}/worksheet/update'.format(url_prefix, model_key))
config.add_view(cls, attr='worksheet_update', route_name='{}.worksheet_update'.format(route_prefix),
renderer='json', permission='{}.worksheet'.format(permission_prefix))
# refresh batch data
if cls.refreshable:
config.add_route('{}.refresh'.format(route_prefix), '{}/{{uuid}}/refresh'.format(url_prefix))
config.add_view(cls, attr='refresh', route_name='{}.refresh'.format(route_prefix),
permission='{}.refresh'.format(permission_prefix))
config.add_tailbone_permission(permission_prefix, '{}.refresh'.format(permission_prefix),
"Refresh data for {}".format(model_title))
# bulk delete rows
if cls.rows_bulk_deletable:
config.add_route('{}.delete_rows'.format(route_prefix), '{}/{{uuid}}/rows/delete'.format(url_prefix))
config.add_view(cls, attr='bulk_delete_rows', route_name='{}.delete_rows'.format(route_prefix),
permission='{}.delete_rows'.format(permission_prefix))
config.add_tailbone_permission(permission_prefix, '{}.delete_rows'.format(permission_prefix),
"Bulk-delete data rows from {}".format(model_title))
# toggle complete
config.add_route('{}.toggle_complete'.format(route_prefix), '{}/{{{}}}/toggle-complete'.format(url_prefix, model_key))
config.add_view(cls, attr='toggle_complete', route_name='{}.toggle_complete'.format(route_prefix),
permission='{}.edit'.format(permission_prefix))
# mobile mark complete
config.add_route('mobile.{}.mark_complete'.format(route_prefix), '/mobile{}/{{{}}}/mark-complete'.format(url_prefix, model_key))
config.add_view(cls, attr='mobile_mark_complete', route_name='mobile.{}.mark_complete'.format(route_prefix),
permission='{}.edit'.format(permission_prefix))
# mobile mark pending
config.add_route('mobile.{}.mark_pending'.format(route_prefix), '/mobile{}/{{{}}}/mark-pending'.format(url_prefix, model_key))
config.add_view(cls, attr='mobile_mark_pending', route_name='mobile.{}.mark_pending'.format(route_prefix),
permission='{}.edit'.format(permission_prefix))
# execute (multiple) batch results
if cls.results_executable:
config.add_route('{}.execute_results'.format(route_prefix), '{}/execute-results'.format(url_prefix),
request_method='POST')
config.add_view(cls, attr='execute_results', route_name='{}.execute_results'.format(route_prefix),
permission='{}.execute_multiple'.format(permission_prefix))
config.add_tailbone_permission(permission_prefix, '{}.execute_multiple'.format(permission_prefix),
"Execute multiple {}".format(model_title_plural))
class FileBatchMasterView(BatchMasterView):
"""
Base class for all file-based "batch master" views.
"""
downloadable = True
@property
def upload_dir(self):
"""
The path to the root upload folder, to be used as the ``storage_path``
argument for the file field renderer.
"""
uploads = os.path.join(
self.rattail_config.require('rattail', 'batch.files'),
'uploads')
uploads = self.rattail_config.get('tailbone', 'batch.uploads',
default=uploads)
if not os.path.exists(uploads):
os.makedirs(uploads)
return uploads
def configure_form(self, f):
super(FileBatchMasterView, self).configure_form(f)
batch = f.model_instance
# filename
if self.creating:
# TODO: what's up with this re-insertion again..?
# if 'filename' not in f.fields:
# f.fields.insert(0, 'filename')
f.set_type('filename', 'file')
else:
f.set_readonly('filename')
f.set_renderer('filename', self.render_downloadable_file)
class ToggleComplete(colander.MappingSchema):
complete = colander.SchemaNode(colander.Boolean())
class MobileBatchStatusFilter(grids.filters.MobileFilter):
value_choices = ['pending', 'complete', 'executed', 'all']
def __init__(self, model_class, key, **kwargs):
self.model_class = model_class
super(MobileBatchStatusFilter, self).__init__(key, **kwargs)
def filter_equal(self, query, value):
if value == 'pending':
return query.filter(self.model_class.executed == None)\
.filter(sa.or_(
self.model_class.complete == None,
self.model_class.complete == False))
if value == 'complete':
return query.filter(self.model_class.executed == None)\
.filter(self.model_class.complete == True)
if value == 'executed':
return query.filter(self.model_class.executed != None)
return query
def iter_choices(self):
for value in self.value_choices:
yield value, prettify(value)