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Split up views into separate modules

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Scot Hacker 2018-12-21 02:00:36 -08:00
parent 21ec87cee4
commit 78e9c510bc
15 changed files with 557 additions and 464 deletions
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2
README.md
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@ -167,6 +167,8 @@ The previous `tox` system was removed with the v2 release, since we no longer ai
# Version History
**2.1.1** Split up views into separate modules.
**2.1.0** December 2018: No longer allowing Javascript in task or comment bodies. Misc bug fixes.
**2.0.3** April 2018: Bump production status in setup.py

2
todo/__init__.py
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@ -1,7 +1,7 @@
"""
A multi-user, multi-group task management and assignment system for Django.
"""
__version__ = '2.1.0'
__version__ = '2.1.1'
__author__ = 'Scot Hacker'
__email__ = 'shacker@birdhouse.org'

32
todo/utils.py
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@ -1,8 +1,26 @@
from django.contrib.sites.models import Site
from django.core.exceptions import PermissionDenied
from django.core.mail import send_mail
from django.template.loader import render_to_string
from todo.models import Comment
from todo.models import Comment, Task
def staff_only(function):
"""
Custom view decorator allows us to raise 403 on insufficient permissions,
rather than redirect user to login view.
"""
def wrap(request, *args, **kwargs):
if request.user.is_staff:
return function(request, *args, **kwargs)
else:
raise PermissionDenied
wrap.__doc__ = function.__doc__
wrap.__name__ = function.__name__
return wrap
def send_notify_mail(new_task):
@ -44,3 +62,15 @@ def send_email_to_thread_participants(task, msg_body, user, subject=None):
recip_list = list(set(recip_list)) # Eliminate duplicates
send_mail(email_subject, email_body, task.created_by.email, recip_list, fail_silently=False)
def toggle_task_completed(task_id: int) -> bool:
try:
task = Task.objects.get(id=task_id)
task.completed = not task.completed
task.save()
return True
except Task.DoesNotExist:
# FIXME proper log message
print("task not found")
return False

462
todo/views.py
View file

@ -1,462 +0,0 @@
import datetime
import bleach
from django.conf import settings
from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.contrib.auth.models import User
from django.contrib.sites.models import Site
from django.core.exceptions import PermissionDenied
from django.core.mail import send_mail
from django.db import IntegrityError
from django.db.models import Q
from django.http import HttpResponse
from django.shortcuts import get_object_or_404, render, redirect
from django.template.loader import render_to_string
from django.urls import reverse
from django.utils import timezone
from django.utils.text import slugify
from django.views.decorators.csrf import csrf_exempt
from todo.forms import AddTaskListForm, AddEditTaskForm, AddExternalTaskForm, SearchForm
from todo.models import Task, TaskList, Comment
from todo.utils import send_notify_mail, send_email_to_thread_participants
def staff_only(function):
"""
Custom view decorator allows us to raise 403 on insufficient permissions,
rather than redirect user to login view.
"""
def wrap(request, *args, **kwargs):
if request.user.is_staff:
return function(request, *args, **kwargs)
else:
raise PermissionDenied
wrap.__doc__ = function.__doc__
wrap.__name__ = function.__name__
return wrap
@login_required
def list_lists(request) -> HttpResponse:
"""Homepage view - list of lists a user can view, and ability to add a list.
"""
thedate = datetime.datetime.now()
searchform = SearchForm(auto_id=False)
# Make sure user belongs to at least one group.
if request.user.groups.all().count() == 0:
messages.warning(
request,
"You do not yet belong to any groups. Ask your administrator to add you to one.",
)
# Superusers see all lists
if request.user.is_superuser:
lists = TaskList.objects.all().order_by("group", "name")
else:
lists = TaskList.objects.filter(group__in=request.user.groups.all()).order_by(
"group", "name"
)
list_count = lists.count()
# superusers see all lists, so count shouldn't filter by just lists the admin belongs to
if request.user.is_superuser:
task_count = Task.objects.filter(completed=0).count()
else:
task_count = (
Task.objects.filter(completed=0)
.filter(task_list__group__in=request.user.groups.all())
.count()
)
context = {
"lists": lists,
"thedate": thedate,
"searchform": searchform,
"list_count": list_count,
"task_count": task_count,
}
return render(request, "todo/list_lists.html", context)
@staff_only
@login_required
def del_list(request, list_id: int, list_slug: str) -> HttpResponse:
"""Delete an entire list. Danger Will Robinson! Only staff members should be allowed to access this view.
"""
task_list = get_object_or_404(TaskList, id=list_id)
# Ensure user has permission to delete list. Admins can delete all lists.
# Get the group this list belongs to, and check whether current user is a member of that group.
# FIXME: This means any group member can delete lists, which is probably too permissive.
if task_list.group not in request.user.groups.all() and not request.user.is_staff:
raise PermissionDenied
if request.method == "POST":
TaskList.objects.get(id=task_list.id).delete()
messages.success(request, "{list_name} is gone.".format(list_name=task_list.name))
return redirect("todo:lists")
else:
task_count_done = Task.objects.filter(task_list=task_list.id, completed=True).count()
task_count_undone = Task.objects.filter(task_list=task_list.id, completed=False).count()
task_count_total = Task.objects.filter(task_list=task_list.id).count()
context = {
"task_list": task_list,
"task_count_done": task_count_done,
"task_count_undone": task_count_undone,
"task_count_total": task_count_total,
}
return render(request, "todo/del_list.html", context)
@login_required
def list_detail(request, list_id=None, list_slug=None, view_completed=False):
"""Display and manage tasks in a todo list.
"""
# Defaults
task_list = None
form = None
# Which tasks to show on this list view?
if list_slug == "mine":
tasks = Task.objects.filter(assigned_to=request.user)
else:
# Show a specific list, ensuring permissions.
task_list = get_object_or_404(TaskList, id=list_id)
if task_list.group not in request.user.groups.all() and not request.user.is_staff:
raise PermissionDenied
tasks = Task.objects.filter(task_list=task_list.id)
# Additional filtering
if view_completed:
tasks = tasks.filter(completed=True)
else:
tasks = tasks.filter(completed=False)
# ######################
# Add New Task Form
# ######################
if request.POST.getlist("add_edit_task"):
form = AddEditTaskForm(
request.user,
request.POST,
initial={"assigned_to": request.user.id, "priority": 999, "task_list": task_list},
)
if form.is_valid():
new_task = form.save(commit=False)
new_task.created_date = timezone.now()
new_task.note = bleach.clean(form.cleaned_data["note"], strip=True)
form.save()
# Send email alert only if Notify checkbox is checked AND assignee is not same as the submitter
if (
"notify" in request.POST
and new_task.assigned_to
and new_task.assigned_to != request.user
):
send_notify_mail(new_task)
messages.success(request, 'New task "{t}" has been added.'.format(t=new_task.title))
return redirect(request.path)
else:
# Don't allow adding new tasks on some views
if list_slug not in ["mine", "recent-add", "recent-complete"]:
form = AddEditTaskForm(
request.user,
initial={"assigned_to": request.user.id, "priority": 999, "task_list": task_list},
)
context = {
"list_id": list_id,
"list_slug": list_slug,
"task_list": task_list,
"form": form,
"tasks": tasks,
"view_completed": view_completed,
}
return render(request, "todo/list_detail.html", context)
@login_required
def task_detail(request, task_id: int) -> HttpResponse:
"""View task details. Allow task details to be edited. Process new comments on task.
"""
task = get_object_or_404(Task, pk=task_id)
comment_list = Comment.objects.filter(task=task_id)
# Ensure user has permission to view task. Admins can view all tasks.
# Get the group this task belongs to, and check whether current user is a member of that group.
if task.task_list.group not in request.user.groups.all() and not request.user.is_staff:
raise PermissionDenied
# Save submitted comments
if request.POST.get("add_comment"):
Comment.objects.create(
author=request.user,
task=task,
body=bleach.clean(request.POST["comment-body"], strip=True),
)
send_email_to_thread_participants(
task,
request.POST["comment-body"],
request.user,
subject='New comment posted on task "{}"'.format(task.title),
)
messages.success(request, "Comment posted. Notification email sent to thread participants.")
# Save task edits
if request.POST.get("add_edit_task"):
form = AddEditTaskForm(
request.user, request.POST, instance=task, initial={"task_list": task.task_list}
)
if form.is_valid():
item = form.save(commit=False)
item.note = bleach.clean(form.cleaned_data["note"], strip=True)
item.save()
messages.success(request, "The task has been edited.")
return redirect(
"todo:list_detail", list_id=task.task_list.id, list_slug=task.task_list.slug
)
else:
form = AddEditTaskForm(request.user, instance=task, initial={"task_list": task.task_list})
# Mark complete
if request.POST.get("toggle_done"):
results_changed = toggle_done([task.id])
for res in results_changed:
messages.success(request, res)
return redirect("todo:task_detail", task_id=task.id)
if task.due_date:
thedate = task.due_date
else:
thedate = datetime.datetime.now()
context = {"task": task, "comment_list": comment_list, "form": form, "thedate": thedate}
return render(request, "todo/task_detail.html", context)
@csrf_exempt
@login_required
def reorder_tasks(request) -> HttpResponse:
"""Handle task re-ordering (priorities) from JQuery drag/drop in list_detail.html
"""
newtasklist = request.POST.getlist("tasktable[]")
if newtasklist:
# First task in received list is always empty - remove it
del newtasklist[0]
# Re-prioritize each task in list
i = 1
for id in newtasklist:
task = Task.objects.get(pk=id)
task.priority = i
task.save()
i += 1
# All views must return an httpresponse of some kind ... without this we get
# error 500s in the log even though things look peachy in the browser.
return HttpResponse(status=201)
@staff_only
@login_required
def add_list(request) -> HttpResponse:
"""Allow users to add a new todo list to the group they're in.
"""
if request.POST:
form = AddTaskListForm(request.user, request.POST)
if form.is_valid():
try:
newlist = form.save(commit=False)
newlist.slug = slugify(newlist.name)
newlist.save()
messages.success(request, "A new list has been added.")
return redirect("todo:lists")
except IntegrityError:
messages.warning(
request,
"There was a problem saving the new list. "
"Most likely a list with the same name in the same group already exists.",
)
else:
if request.user.groups.all().count() == 1:
form = AddTaskListForm(request.user, initial={"group": request.user.groups.all()[0]})
else:
form = AddTaskListForm(request.user)
context = {"form": form}
return render(request, "todo/add_list.html", context)
@login_required
def search(request) -> HttpResponse:
"""Search for tasks user has permission to see.
"""
if request.GET:
query_string = ""
found_tasks = None
if ("q" in request.GET) and request.GET["q"].strip():
query_string = request.GET["q"]
found_tasks = Task.objects.filter(
Q(title__icontains=query_string) | Q(note__icontains=query_string)
)
else:
# What if they selected the "completed" toggle but didn't enter a query string?
# We still need found_tasks in a queryset so it can be "excluded" below.
found_tasks = Task.objects.all()
if "inc_complete" in request.GET:
found_tasks = found_tasks.exclude(completed=True)
else:
query_string = None
found_tasks = None
# Only include tasks that are in groups of which this user is a member:
if not request.user.is_superuser:
found_tasks = found_tasks.filter(task_list__group__in=request.user.groups.all())
context = {"query_string": query_string, "found_tasks": found_tasks}
return render(request, "todo/search_results.html", context)
@login_required
def external_add(request) -> HttpResponse:
"""Allow authenticated users who don't have access to the rest of the ticket system to file a ticket
in the list specified in settings (e.g. django-todo can be used a ticket filing system for a school, where
students can file tickets without access to the rest of the todo system).
Publicly filed tickets are unassigned unless settings.DEFAULT_ASSIGNEE exists.
"""
if not settings.TODO_DEFAULT_LIST_SLUG:
raise RuntimeError(
"This feature requires TODO_DEFAULT_LIST_SLUG: in settings. See documentation."
)
if not TaskList.objects.filter(slug=settings.TODO_DEFAULT_LIST_SLUG).exists():
raise RuntimeError(
"There is no TaskList with slug specified for TODO_DEFAULT_LIST_SLUG in settings."
)
if request.POST:
form = AddExternalTaskForm(request.POST)
if form.is_valid():
current_site = Site.objects.get_current()
task = form.save(commit=False)
task.task_list = TaskList.objects.get(slug=settings.TODO_DEFAULT_LIST_SLUG)
task.created_by = request.user
if settings.TODO_DEFAULT_ASSIGNEE:
task.assigned_to = User.objects.get(username=settings.TODO_DEFAULT_ASSIGNEE)
task.save()
# Send email to assignee if we have one
if task.assigned_to:
email_subject = render_to_string(
"todo/email/assigned_subject.txt", {"task": task.title}
)
email_body = render_to_string(
"todo/email/assigned_body.txt", {"task": task, "site": current_site}
)
try:
send_mail(
email_subject,
email_body,
task.created_by.email,
[task.assigned_to.email],
fail_silently=False,
)
except ConnectionRefusedError:
messages.warning(
request, "Task saved but mail not sent. Contact your administrator."
)
messages.success(
request, "Your trouble ticket has been submitted. We'll get back to you soon."
)
return redirect(settings.TODO_PUBLIC_SUBMIT_REDIRECT)
else:
form = AddExternalTaskForm(initial={"priority": 999})
context = {"form": form}
return render(request, "todo/add_task_external.html", context)
@login_required
def toggle_done(request, task_id: int) -> HttpResponse:
"""Toggle the completed status of a task from done to undone, or vice versa.
Redirect to the list from which the task came.
"""
task = get_object_or_404(Task, pk=task_id)
# Permissions
if not (
(task.created_by == request.user)
or (task.assigned_to == request.user)
or (task.task_list.group in request.user.groups.all())
):
raise PermissionDenied
tlist = task.task_list
task.completed = not task.completed
task.save()
messages.success(request, "Task status changed for '{}'".format(task.title))
return redirect(
reverse("todo:list_detail", kwargs={"list_id": tlist.id, "list_slug": tlist.slug})
)
@login_required
def delete_task(request, task_id: int) -> HttpResponse:
"""Delete specified task.
Redirect to the list from which the task came.
"""
task = get_object_or_404(Task, pk=task_id)
# Permissions
if not (
(task.created_by == request.user)
or (task.assigned_to == request.user)
or (task.task_list.group in request.user.groups.all())
):
raise PermissionDenied
tlist = task.task_list
task.delete()
messages.success(request, "Task '{}' has been deleted".format(task.title))
return redirect(
reverse("todo:list_detail", kwargs={"list_id": tlist.id, "list_slug": tlist.slug})
)

10
todo/views/__init__.py Normal file
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@ -0,0 +1,10 @@
from todo.views.add_list import add_list # noqa: F401
from todo.views.del_list import del_list # noqa: F401
from todo.views.delete_task import delete_task # noqa: F401
from todo.views.external_add import external_add # noqa: F401
from todo.views.list_detail import list_detail # noqa: F401
from todo.views.list_lists import list_lists # noqa: F401
from todo.views.reorder_tasks import reorder_tasks # noqa: F401
from todo.views.search import search # noqa: F401
from todo.views.task_detail import task_detail # noqa: F401
from todo.views.toggle_done import toggle_done # noqa: F401

42
todo/views/add_list.py Normal file
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@ -0,0 +1,42 @@
from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.db import IntegrityError
from django.http import HttpResponse
from django.shortcuts import redirect, render
from django.utils.text import slugify
from todo.forms import AddTaskListForm
from todo.utils import staff_only
@staff_only
@login_required
def add_list(request) -> HttpResponse:
"""Allow users to add a new todo list to the group they're in.
"""
if request.POST:
form = AddTaskListForm(request.user, request.POST)
if form.is_valid():
try:
newlist = form.save(commit=False)
newlist.slug = slugify(newlist.name)
newlist.save()
messages.success(request, "A new list has been added.")
return redirect("todo:lists")
except IntegrityError:
messages.warning(
request,
"There was a problem saving the new list. "
"Most likely a list with the same name in the same group already exists.",
)
else:
if request.user.groups.all().count() == 1:
form = AddTaskListForm(request.user, initial={"group": request.user.groups.all()[0]})
else:
form = AddTaskListForm(request.user)
context = {"form": form}
return render(request, "todo/add_list.html", context)

42
todo/views/del_list.py Normal file
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@ -0,0 +1,42 @@
import datetime
from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.http import HttpResponse
from django.shortcuts import render, redirect, get_object_or_404
from django.core.exceptions import PermissionDenied
from todo.models import Task, TaskList
from todo.utils import staff_only
@staff_only
@login_required
def del_list(request, list_id: int, list_slug: str) -> HttpResponse:
"""Delete an entire list. Only staff members should be allowed to access this view.
"""
task_list = get_object_or_404(TaskList, id=list_id)
# Ensure user has permission to delete list. Admins can delete all lists.
# Get the group this list belongs to, and check whether current user is a member of that group.
# FIXME: This means any group member can delete lists, which is probably too permissive.
if task_list.group not in request.user.groups.all() and not request.user.is_staff:
raise PermissionDenied
if request.method == "POST":
TaskList.objects.get(id=task_list.id).delete()
messages.success(request, "{list_name} is gone.".format(list_name=task_list.name))
return redirect("todo:lists")
else:
task_count_done = Task.objects.filter(task_list=task_list.id, completed=True).count()
task_count_undone = Task.objects.filter(task_list=task_list.id, completed=False).count()
task_count_total = Task.objects.filter(task_list=task_list.id).count()
context = {
"task_list": task_list,
"task_count_done": task_count_done,
"task_count_undone": task_count_undone,
"task_count_total": task_count_total,
}
return render(request, "todo/del_list.html", context)

32
todo/views/delete_task.py Normal file
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@ -0,0 +1,32 @@
from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.core.exceptions import PermissionDenied
from django.http import HttpResponse
from django.shortcuts import get_object_or_404, redirect
from django.urls import reverse
from todo.models import Task
@login_required
def delete_task(request, task_id: int) -> HttpResponse:
"""Delete specified task.
Redirect to the list from which the task came.
"""
task = get_object_or_404(Task, pk=task_id)
# Permissions
if not (
(task.created_by == request.user)
or (task.assigned_to == request.user)
or (task.task_list.group in request.user.groups.all())
):
raise PermissionDenied
tlist = task.task_list
task.delete()
messages.success(request, "Task '{}' has been deleted".format(task.title))
return redirect(
reverse("todo:list_detail", kwargs={"list_id": tlist.id, "list_slug": tlist.slug})
)

77
todo/views/external_add.py Normal file
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@ -0,0 +1,77 @@
from django.conf import settings
from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.contrib.auth.models import User
from django.contrib.sites.models import Site
from django.core.mail import send_mail
from django.http import HttpResponse
from django.shortcuts import redirect, render
from django.template.loader import render_to_string
from todo.forms import AddExternalTaskForm
from todo.models import TaskList
@login_required
def external_add(request) -> HttpResponse:
"""Allow authenticated users who don't have access to the rest of the ticket system to file a ticket
in the list specified in settings (e.g. django-todo can be used a ticket filing system for a school, where
students can file tickets without access to the rest of the todo system).
Publicly filed tickets are unassigned unless settings.DEFAULT_ASSIGNEE exists.
"""
if not settings.TODO_DEFAULT_LIST_SLUG:
raise RuntimeError(
"This feature requires TODO_DEFAULT_LIST_SLUG: in settings. See documentation."
)
if not TaskList.objects.filter(slug=settings.TODO_DEFAULT_LIST_SLUG).exists():
raise RuntimeError(
"There is no TaskList with slug specified for TODO_DEFAULT_LIST_SLUG in settings."
)
if request.POST:
form = AddExternalTaskForm(request.POST)
if form.is_valid():
current_site = Site.objects.get_current()
task = form.save(commit=False)
task.task_list = TaskList.objects.get(slug=settings.TODO_DEFAULT_LIST_SLUG)
task.created_by = request.user
if settings.TODO_DEFAULT_ASSIGNEE:
task.assigned_to = User.objects.get(username=settings.TODO_DEFAULT_ASSIGNEE)
task.save()
# Send email to assignee if we have one
if task.assigned_to:
email_subject = render_to_string(
"todo/email/assigned_subject.txt", {"task": task.title}
)
email_body = render_to_string(
"todo/email/assigned_body.txt", {"task": task, "site": current_site}
)
try:
send_mail(
email_subject,
email_body,
task.created_by.email,
[task.assigned_to.email],
fail_silently=False,
)
except ConnectionRefusedError:
messages.warning(
request, "Task saved but mail not sent. Contact your administrator."
)
messages.success(
request, "Your trouble ticket has been submitted. We'll get back to you soon."
)
return redirect(settings.TODO_PUBLIC_SUBMIT_REDIRECT)
else:
form = AddExternalTaskForm(initial={"priority": 999})
context = {"form": form}
return render(request, "todo/add_task_external.html", context)

84
todo/views/list_detail.py Normal file
View file

@ -0,0 +1,84 @@
import bleach
from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.core.exceptions import PermissionDenied
from django.http import HttpResponse
from django.shortcuts import get_object_or_404, redirect, render
from django.utils import timezone
from todo.forms import AddEditTaskForm
from todo.models import Task, TaskList
from todo.utils import send_notify_mail
@login_required
def list_detail(request, list_id=None, list_slug=None, view_completed=False) -> HttpResponse:
"""Display and manage tasks in a todo list.
"""
# Defaults
task_list = None
form = None
# Which tasks to show on this list view?
if list_slug == "mine":
tasks = Task.objects.filter(assigned_to=request.user)
else:
# Show a specific list, ensuring permissions.
task_list = get_object_or_404(TaskList, id=list_id)
if task_list.group not in request.user.groups.all() and not request.user.is_staff:
raise PermissionDenied
tasks = Task.objects.filter(task_list=task_list.id)
# Additional filtering
if view_completed:
tasks = tasks.filter(completed=True)
else:
tasks = tasks.filter(completed=False)
# ######################
# Add New Task Form
# ######################
if request.POST.getlist("add_edit_task"):
form = AddEditTaskForm(
request.user,
request.POST,
initial={"assigned_to": request.user.id, "priority": 999, "task_list": task_list},
)
if form.is_valid():
new_task = form.save(commit=False)
new_task.created_date = timezone.now()
new_task.note = bleach.clean(form.cleaned_data["note"], strip=True)
form.save()
# Send email alert only if Notify checkbox is checked AND assignee is not same as the submitter
if (
"notify" in request.POST
and new_task.assigned_to
and new_task.assigned_to != request.user
):
send_notify_mail(new_task)
messages.success(request, 'New task "{t}" has been added.'.format(t=new_task.title))
return redirect(request.path)
else:
# Don't allow adding new tasks on some views
if list_slug not in ["mine", "recent-add", "recent-complete"]:
form = AddEditTaskForm(
request.user,
initial={"assigned_to": request.user.id, "priority": 999, "task_list": task_list},
)
context = {
"list_id": list_id,
"list_slug": list_slug,
"task_list": task_list,
"form": form,
"tasks": tasks,
"view_completed": view_completed,
}
return render(request, "todo/list_detail.html", context)

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todo/views/list_lists.py Normal file
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import datetime
from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.http import HttpResponse
from django.shortcuts import render
from todo.forms import SearchForm
from todo.models import Task, TaskList
@login_required
def list_lists(request) -> HttpResponse:
"""Homepage view - list of lists a user can view, and ability to add a list.
"""
thedate = datetime.datetime.now()
searchform = SearchForm(auto_id=False)
# Make sure user belongs to at least one group.
if request.user.groups.all().count() == 0:
messages.warning(
request,
"You do not yet belong to any groups. Ask your administrator to add you to one.",
)
# Superusers see all lists
if request.user.is_superuser:
lists = TaskList.objects.all().order_by("group", "name")
else:
lists = TaskList.objects.filter(group__in=request.user.groups.all()).order_by(
"group", "name"
)
list_count = lists.count()
# superusers see all lists, so count shouldn't filter by just lists the admin belongs to
if request.user.is_superuser:
task_count = Task.objects.filter(completed=0).count()
else:
task_count = (
Task.objects.filter(completed=0)
.filter(task_list__group__in=request.user.groups.all())
.count()
)
context = {
"lists": lists,
"thedate": thedate,
"searchform": searchform,
"list_count": list_count,
"task_count": task_count,
}
return render(request, "todo/list_lists.html", context)

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todo/views/reorder_tasks.py Normal file
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from django.contrib.auth.decorators import login_required
from django.http import HttpResponse
from todo.models import Task
from django.views.decorators.csrf import csrf_exempt
@csrf_exempt
@login_required
def reorder_tasks(request) -> HttpResponse:
"""Handle task re-ordering (priorities) from JQuery drag/drop in list_detail.html
"""
newtasklist = request.POST.getlist("tasktable[]")
if newtasklist:
# First task in received list is always empty - remove it
del newtasklist[0]
# Re-prioritize each task in list
i = 1
for id in newtasklist:
task = Task.objects.get(pk=id)
task.priority = i
task.save()
i += 1
# All views must return an httpresponse of some kind ... without this we get
# error 500s in the log even though things look peachy in the browser.
return HttpResponse(status=201)

40
todo/views/search.py Normal file
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from django.contrib.auth.decorators import login_required
from django.db.models import Q
from django.http import HttpResponse
from django.shortcuts import render
from todo.models import Task
@login_required
def search(request) -> HttpResponse:
"""Search for tasks user has permission to see.
"""
if request.GET:
query_string = ""
found_tasks = None
if ("q" in request.GET) and request.GET["q"].strip():
query_string = request.GET["q"]
found_tasks = Task.objects.filter(
Q(title__icontains=query_string) | Q(note__icontains=query_string)
)
else:
# What if they selected the "completed" toggle but didn't enter a query string?
# We still need found_tasks in a queryset so it can be "excluded" below.
found_tasks = Task.objects.all()
if "inc_complete" in request.GET:
found_tasks = found_tasks.exclude(completed=True)
else:
query_string = None
found_tasks = None
# Only include tasks that are in groups of which this user is a member:
if not request.user.is_superuser:
found_tasks = found_tasks.filter(task_list__group__in=request.user.groups.all())
context = {"query_string": query_string, "found_tasks": found_tasks}
return render(request, "todo/search_results.html", context)

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todo/views/task_detail.py Normal file
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import datetime
import bleach
from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.core.exceptions import PermissionDenied
from django.http import HttpResponse
from django.shortcuts import get_object_or_404, redirect, render
from todo.forms import AddEditTaskForm
from todo.models import Comment, Task
from todo.utils import send_email_to_thread_participants, toggle_task_completed
@login_required
def task_detail(request, task_id: int) -> HttpResponse:
"""View task details. Allow task details to be edited. Process new comments on task.
"""
task = get_object_or_404(Task, pk=task_id)
comment_list = Comment.objects.filter(task=task_id)
# Ensure user has permission to view task. Admins can view all tasks.
# Get the group this task belongs to, and check whether current user is a member of that group.
if task.task_list.group not in request.user.groups.all() and not request.user.is_staff:
raise PermissionDenied
# Save submitted comments
if request.POST.get("add_comment"):
Comment.objects.create(
author=request.user,
task=task,
body=bleach.clean(request.POST["comment-body"], strip=True),
)
send_email_to_thread_participants(
task,
request.POST["comment-body"],
request.user,
subject='New comment posted on task "{}"'.format(task.title),
)
messages.success(request, "Comment posted. Notification email sent to thread participants.")
# Save task edits
if request.POST.get("add_edit_task"):
form = AddEditTaskForm(
request.user, request.POST, instance=task, initial={"task_list": task.task_list}
)
if form.is_valid():
item = form.save(commit=False)
item.note = bleach.clean(form.cleaned_data["note"], strip=True)
item.save()
messages.success(request, "The task has been edited.")
return redirect(
"todo:list_detail", list_id=task.task_list.id, list_slug=task.task_list.slug
)
else:
form = AddEditTaskForm(request.user, instance=task, initial={"task_list": task.task_list})
# Mark complete
if request.POST.get("toggle_done"):
results_changed = toggle_task_completed(task.id)
if results_changed:
messages.success(request, f"Changed completion status for task {task.id}")
return redirect("todo:task_detail", task_id=task.id)
if task.due_date:
thedate = task.due_date
else:
thedate = datetime.datetime.now()
context = {"task": task, "comment_list": comment_list, "form": form, "thedate": thedate}
return render(request, "todo/task_detail.html", context)

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todo/views/toggle_done.py Normal file
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from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.core.exceptions import PermissionDenied
from django.http import HttpResponse
from django.shortcuts import get_object_or_404, redirect
from django.urls import reverse
from todo.models import Task
from todo.utils import toggle_task_completed
@login_required
def toggle_done(request, task_id: int) -> HttpResponse:
"""Toggle the completed status of a task from done to undone, or vice versa.
Redirect to the list from which the task came.
"""
task = get_object_or_404(Task, pk=task_id)
# Permissions
if not (
(request.user.is_superuser)
or (task.created_by == request.user)
or (task.assigned_to == request.user)
or (task.task_list.group in request.user.groups.all())
):
raise PermissionDenied
toggle_task_completed(task.id)
messages.success(request, "Task status changed for '{}'".format(task.title))
return redirect(
reverse(
"todo:list_detail",
kwargs={"list_id": task.task_list.id, "list_slug": task.task_list.slug},
)
)