def render_songbook(request, id, slug):
"""Trigger the generation of a songbook
"""
force = request.REQUEST.get("force", False)
songbook = Songbook.objects.get(id=id)
layout_id = request.REQUEST.get("layout", 0)
if layout_id == 0:
layout_id = request.session["layout"]
layout = Layout.objects.get(id=layout_id)
try:
gen_task = GeneratorTask.objects.get(songbook=songbook,
layout=layout)
state = gen_task.state
except GeneratorTask.DoesNotExist:
gen_task = None
state = None
# Build cases
build = gen_task is None or \
((state == GeneratorTask.State.FINISHED or \
state == GeneratorTask.State.ERROR) and force) or\
gen_task.hash != songbook.hash()
if build:
gen_task, _created = GeneratorTask.objects.get_or_create(
songbook=songbook,
layout=layout)
gen_task.result = {}
gen_task.hash = songbook.hash()
gen_task.state = GeneratorTask.State.QUEUED
gen_task.save()
import generator.tasks as tasks
tasks.queue_render_task(gen_task.id)
return redirect(reverse('setup_rendering', kwargs={"id":id, "slug":slug}))
