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requirement_views.py
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requirement_views.py
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from django.contrib.auth.decorators import login_required
from django.core import serializers
from django.core.serializers.json import DjangoJSONEncoder
from django.db.models import Sum, Q, Min
from django.http import HttpResponse, HttpResponseBadRequest, HttpResponseRedirect, JsonResponse
from django.shortcuts import get_object_or_404
from django.template import loader
from django.urls import reverse
from django.views.decorators.http import require_http_methods
from NearBeach.decorators.check_user_permissions import check_user_permissions
from NearBeach.forms import AddRequirementLinkForm, NewRequirementForm, organisation, UpdateRequirementForm
from NearBeach.models import requirement, object_assignment, project, task, opportunity, requirement_item, list_of_requirement_item_status, list_of_requirement_item_type, list_of_requirement_status, list_of_requirement_type, group, user_group
import json
@require_http_methods(['POST'])
@login_required(login_url='login', redirect_field_name="")
@check_user_permissions(min_permission_level=2, object_lookup='requirement_id')
def add_requirement_link(request, requirement_id, *args, **kwargs):
# Check user form is valid
form = AddRequirementLinkForm(request.POST)
if not form.is_valid():
return HttpResponseBadRequest(form.errors)
# Get the requirement instnace
requirement_instance = requirement.objects.get(requirement_id=requirement_id)
# Get the project list from the form
for row in request.POST.getlist("project"):
submit_object_assignment = object_assignment(
requirement=requirement_instance,
project=project.objects.get(project_id=row),
change_user=request.user,
)
submit_object_assignment.save()
for row in request.POST.getlist("task"):
submit_object_assignment = object_assignment(
requirement=requirement_instance,
task=task.objects.get(task_id=row),
change_user=request.user,
)
submit_object_assignment.save()
for row in request.POST.getlist("opportunity"):
submit_object_assignment = object_assignment(
requirement=requirement_instance,
opportunity=opportunity.objects.get(opportunity_id=row),
change_user=request.user,
)
submit_object_assignment.save()
return HttpResponse("Success")
@require_http_methods(['POST'])
@login_required(login_url='login', redirect_field_name="")
@check_user_permissions(min_permission_level=1, object_lookup='requirement_id')
def get_requirement_item_links(request, requirement_id, *args, **kwargs):
# Get the requirement information
_ = requirement.objects.get(requirement_id=requirement_id)
# Use object_assignment to get the requirme
link_results = object_assignment.objects.filter(
Q(
is_deleted=False,
requirement_item_id__in=requirement_item.objects.filter(
is_deleted=False,
requirement_id=requirement_id,
).values('requirement_item_id')
) & Q(
Q(opportunity_id__isnull=False) |
Q(quote_id__isnull=False) |
Q(project_id__isnull=False) |
Q(task_id__isnull=False)
)
).values(
'opportunity_id',
'opportunity_id__opportunity_name',
'opportunity_id__opportunity_stage_id__opportunity_stage_description',
'quote_id',
'quote_id__quote_title',
'quote_id__quote_stage_id__quote_stage',
'project_id',
'project_id__project_name',
'project_id__project_status',
'task_id',
'task_id__task_short_description',
'task_id__task_status',
'requirement_item_id',
'requirement_item_id__requirement_item_title',
)
"""
As explained on stack overflow here - https://stackoverflow.com/questions/7650448/django-serialize-queryset-values-into-json#31994176
We need to Django's serializers can't handle a ValuesQuerySet. However, you can serialize by using a standard
json.dumps() and transforming your ValuesQuerySet to a list by using list().[sic]
"""
# Send back json data
json_results = json.dumps(list(link_results), cls=DjangoJSONEncoder)
return HttpResponse(json_results, content_type='application/json')
@require_http_methods(['POST'])
@login_required(login_url='login', redirect_field_name="")
@check_user_permissions(min_permission_level=1, object_lookup='requirement_id')
def get_requirement_item_status_list(request, requirement_id, *args, **kwargs):
# Get all status - even deleted ones.
status_list = list_of_requirement_item_status.objects.all()
# Send back json data
json_results = serializers.serialize('json', status_list)
return HttpResponse(json_results, content_type='application/json')
@require_http_methods(['POST'])
@login_required(login_url='login', redirect_field_name="")
@check_user_permissions(min_permission_level=1, object_lookup='requirement_id')
def get_requirement_item_type_list(request, requirement_id, *args, **kwargs):
# Get all status - even deleted ones.
type_list = list_of_requirement_item_type.objects.all()
# Send back json data
json_results = serializers.serialize('json', type_list)
return HttpResponse(json_results, content_type='application/json')
@require_http_methods(['POST'])
@login_required(login_url='login', redirect_field_name="")
@check_user_permissions(min_permission_level=1, object_lookup='requirement_id')
def get_requirement_items(request, requirement_id, *args, **kwargs):
# Get all the requirement items assigned to the requirement
requirement_item_results = requirement_item.objects.filter(
is_deleted=False,
requirement_id=requirement_id,
)
# Send back json data
json_results = serializers.serialize('json', requirement_item_results)
return HttpResponse(json_results, content_type='application/json')
@require_http_methods(['POST'])
@login_required(login_url='login', redirect_field_name="")
@check_user_permissions(min_permission_level=1, object_lookup='requirement_id')
def get_requirement_links_list(request, requirement_id, *args, **kwargs):
# Get the requirement information
_ = requirement.objects.get(requirement_id=requirement_id)
# Use object_assignment to get the requirme
link_results = object_assignment.objects.filter(
Q(
is_deleted=False,
requirement_id=requirement_id,
) & Q(
Q(quote_id__isnull=False) |
Q(project_id__isnull=False) |
Q(task_id__isnull=False)
)
).values(
'project_id',
'project_id__project_name',
'project_id__project_status',
'task_id',
'task_id__task_short_description',
'task_id__task_status',
'requirement_item_id',
'requirement_item_id__requirement_item_title',
)
"""
As explained on stack overflow here - https://stackoverflow.com/questions/7650448/django-serialize-queryset-values-into-json#31994176
We need to Django's serializers can't handle a ValuesQuerySet. However, you can serialize by using a standard
json.dumps() and transforming your ValuesQuerySet to a list by using list().[sic]
"""
# Send back json data
json_results = json.dumps(list(link_results), cls=DjangoJSONEncoder)
return HttpResponse(json_results, content_type='application/json')
@login_required(login_url='login', redirect_field_name="")
@check_user_permissions(min_permission_level=3, object_lookup='requirement_id')
def new_requirement(request, *args, **kwargs):
"""
Loads the new requirement page
:param request:
:param location_id:
:param destination:
:return:
"""
# Extract Data
status_list = list_of_requirement_status.objects.filter(
is_deleted=False,
requirement_status_is_closed=False,
)
type_list = list_of_requirement_type.objects.filter(
is_deleted=False,
)
group_results = group.objects.filter(
is_deleted=False,
)
# Get list of user groups
user_group_results = user_group.objects.filter(
is_deleted=False,
username=request.user,
).values(
'group_id',
'group__group_name',
).distinct()
# Load template
t = loader.get_template('NearBeach/requirements/new_requirements.html')
# context
c = {
'nearbeach_title': 'New Requirements',
'status_list': serializers.serialize("json", status_list),
'type_list': serializers.serialize("json", type_list),
'group_results': serializers.serialize("json", group_results),
'user_group_results': json.dumps(list(user_group_results), cls=DjangoJSONEncoder),
}
return HttpResponse(t.render(c, request))
@require_http_methods(['POST'])
@login_required(login_url='login', redirect_field_name='')
@check_user_permissions(min_permission_level=3, object_lookup='requirement_id')
def new_requirement_save(request, *args, **kwargs):
# Get the data and place into the form
form = NewRequirementForm(request.POST)
if not form.is_valid():
# Something went wrong with the form.
return HttpResponseBadRequest("There was something wrong with the form")
# Save the form
submit_requirement = requirement(
requirement_title=form.cleaned_data['requirement_title'],
requirement_scope=form.cleaned_data['requirement_scope'],
organisation=form.cleaned_data['organisation'],
requirement_status=form.cleaned_data['requirement_status'],
requirement_type=form.cleaned_data['requirement_type'],
change_user=request.user,
creation_user=request.user,
)
submit_requirement.save()
# Get the group list and apply the permissions
group_list = request.POST.getlist("group_list")
for single_group in group_list:
# Get the group instance
group_instance = group.objects.get(group_id=single_group)
# Save the group instance against object assignment
submit_object_assignment = object_assignment(
group_id=group_instance,
requirement=submit_requirement,
change_user=request.user,
)
# Save
submit_object_assignment.save()
# Send back requirement_information URL
return HttpResponse(reverse('requirement_information', args={submit_requirement.requirement_id}))
@login_required(login_url='login', redirect_field_name='')
@check_user_permissions(min_permission_level=1, object_lookup='requirement_id')
def requirement_information(request, requirement_id, *args, **kwargs):
"""
Loads the requirement information.
:param request:
:param requirement_id:
:return:
"""
user_level = kwargs['user_level']
# TODO: Check if I need to have a separate read only tempalte now.
requirement_results = requirement.objects.get(requirement_id=requirement_id)
requirement_is_closed = requirement_results.requirement_status.requirement_status_is_closed
# If the requirement has been closed - send user to the read only section
if requirement_results.requirement_status.requirement_status == "Completed":
return HttpResponseRedirect(reverse('requirement_readonly', args={requirement_id}))
# Load template
t = loader.get_template('NearBeach/requirements/requirement_information.html')
# Get any extra data required
organisation_results = organisation.objects.get(
organisation_id=requirement_results.organisation_id,
)
status_list = list_of_requirement_status.objects.filter(
is_deleted=False,
#requirement_status_is_closed=False,
)
type_list = list_of_requirement_type.objects.filter(
is_deleted=False,
)
group_results = group.objects.filter(
is_deleted=False,
)
requirement_item_results = requirement_item.objects.filter(
is_deleted=False,
requirement_id=requirement_id,
)
# context
c = {
'group_results': serializers.serialize("json", group_results),
'nearbeach_title': 'Requirement Information %s' % requirement_id,
'organisation_results': serializers.serialize("json", [organisation_results]),
'requirement_results': serializers.serialize("json", [requirement_results]),
'requirement_id': requirement_id,
'requirement_is_closed': requirement_is_closed,
'requirement_item_results': serializers.serialize("json", requirement_item_results),
'status_list': serializers.serialize("json", status_list),
'type_list': serializers.serialize("json", type_list),
'user_level': user_level,
}
return HttpResponse(t.render(c, request))
@require_http_methods(['POST'])
@login_required(login_url='login', redirect_field_name="")
@check_user_permissions(min_permission_level=2, object_lookup='requirement_id')
def requirement_information_save(request, requirement_id, *args, **kwargs):
"""
:param request:
:param requirement_id:
:return:
"""
# Insert POST into form
form = UpdateRequirementForm(request.POST)
# If there is an error - notify the user
if not form.is_valid():
return HttpResponseBadRequest("Sorry, there is an error with the form: %s" % form.errors)
# Get the requirement
requirement_result = requirement.objects.get(requirement_id=requirement_id)
# Update all the fields
requirement_result.requirement_title = form.cleaned_data['requirement_title']
requirement_result.requirement_scope = form.cleaned_data['requirement_scope']
requirement_result.requirement_status = form.cleaned_data['requirement_status']
requirement_result.requirement_type = form.cleaned_data['requirement_type']
requirement_result.save()
# Return a success
return HttpResponse("Requirement Saved")