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generate pdf from agenda and protocol

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This commit is contained in:
Patrick Mayr
2021-05-05 07:12:55 +00:00
parent b036c0e8b2
commit b4437cbbd3
5 changed files with 88 additions and 10 deletions
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1
fet2020/posts/urls.py
View File

@@ -9,4 +9,5 @@ urlpatterns = [
path("", views.index, name="posts.index"), path("", views.index, name="posts.index"),
path("fet_calendar.ics", views.calendar, name="posts.calendar"), path("fet_calendar.ics", views.calendar, name="posts.calendar"),
path("<str:id>", views.show, name="posts.show"), path("<str:id>", views.show, name="posts.show"),
path("<str:id>/<str:filename>", views.show_pdf, name="posts.show_pdf"),
] ]

13
fet2020/posts/utils.py Normal file
View File

@@ -0,0 +1,13 @@
from django.http import HttpResponse
from io import BytesIO
from xhtml2pdf import pisa
def render_to_pdf(html):
result = BytesIO()
pdf = pisa.pisaDocument(BytesIO(html.encode("ISO-8859-1")), result)
if not pdf.err:
return HttpResponse(result.getvalue(), content_type='application/pdf')
return None

54
fet2020/posts/views.py
View File

@@ -1,17 +1,20 @@
from collections import deque
import logging import logging
from taggit.models import Tag
from django.shortcuts import render from collections import deque
from django.conf import settings
from django.http import HttpResponse, JsonResponse, HttpResponseServerError from django.http import HttpResponse, JsonResponse, HttpResponseServerError
from django.utils.text import slugify from django.shortcuts import render
from django.template.loader import render_to_string
from django.utils import timezone from django.utils import timezone
from django.utils.text import slugify
from taggit.models import Tag
from documents.api import get_pad_link from documents.api import get_pad_link
from documents.etherpadlib import add_ep_cookie from documents.etherpadlib import add_ep_cookie
from members.models import Member, JobMember from members.models import Member, JobMember
from .models import Post, FetMeeting, FileUpload from .models import Post, FetMeeting, FileUpload
from .utils import render_to_pdf
logger = logging.getLogger(__name__) logger = logging.getLogger(__name__)
@@ -67,11 +70,17 @@ def tags(request, tag=""):
return render(request, "posts/tag.html", context) return render(request, "posts/tag.html", context)
def show(request, id=None): def __get_post_object(id=None):
if id.isdigit() or id is int: if id.isdigit() or id is int:
p = Post.objects.get(id=int(id)) return Post.objects.get(id=int(id))
elif id != "" and id is not None: elif id != "" and id is not None:
p = Post.objects.get(slug=(id)) return Post.objects.get(slug=id)
return None
def show(request, id=None):
p = __get_post_object(id)
files = deque(FileUpload.objects.filter(post=p)) files = deque(FileUpload.objects.filter(post=p))
@@ -85,10 +94,14 @@ def show(request, id=None):
ep_agenda_link = "#" ep_agenda_link = "#"
ep_protocol_link = "#" ep_protocol_link = "#"
# set filename for pdf, not a nice solution
filename_agenda = None
filename_protocol = None
if p.has_agenda: # and p.agenda_key: if p.has_agenda: # and p.agenda_key:
try: try:
ep_agenda_link = get_pad_link(p.agenda_key) ep_agenda_link = get_pad_link(p.agenda_key)
filename_agenda = p.slug + "-agenda.pdf"
except Exception as e: except Exception as e:
logger.error( logger.error(
"Can't get the agenda link from '%s'. Error: %s", p.agenda_key, e "Can't get the agenda link from '%s'. Error: %s", p.agenda_key, e
@@ -98,6 +111,7 @@ def show(request, id=None):
if p.has_protocol: # and p.protocol_key: if p.has_protocol: # and p.protocol_key:
try: try:
ep_protocol_link = get_pad_link(p.protocol_key) ep_protocol_link = get_pad_link(p.protocol_key)
filename_protocol = p.slug + "-protokoll.pdf"
except Exception as e: except Exception as e:
logger.error( logger.error(
"Can't get the protocol link from '%s. Error: %s", p.protocol_key, e "Can't get the protocol link from '%s. Error: %s", p.protocol_key, e
@@ -120,6 +134,8 @@ def show(request, id=None):
"related_posts": related_posts[0:6], "related_posts": related_posts[0:6],
"ep_agenda_link": ep_agenda_link, "ep_agenda_link": ep_agenda_link,
"ep_protocol_link": ep_protocol_link, "ep_protocol_link": ep_protocol_link,
"filename_agenda": filename_agenda,
"filename_protocol": filename_protocol,
} }
response = render(request, "posts/show.html", context) response = render(request, "posts/show.html", context)
@@ -134,6 +150,30 @@ def show(request, id=None):
return response return response
def show_pdf(self, id, filename=None):
p = __get_post_object(id)
# it works but not a nice solution
html = ""
if "agenda" in filename:
html = p.agenda_html
elif "protokoll" in filename:
html = p.protocol_html
rendered = render_to_string(settings.BASE_DIR + "/templates/posts/pdf/template.html")
# get body-content from pdf template
rendered = rendered.split("<html>")[1]
rendered = rendered.split("<body>")[0]
# set body-content in html
idx = html.index("<body>")
html = html[:idx] + rendered + html[idx:]
pdf = render_to_pdf(html)
return HttpResponse(pdf, content_type='application/pdf')
########### ###########
# HELPERS # # HELPERS #
########### ###########

13
fet2020/templates/posts/pdf/template.html Normal file
View File

@@ -0,0 +1,13 @@
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<style type="text/css">
body {
font-weight: 200;
font-size: 14px;
}
</style>
</head>
<body>
</body>
</html>

17
fet2020/templates/posts/show.html
View File

@@ -84,12 +84,23 @@
<hr> <hr>
{% if post.has_agenda %} {% if post.has_agenda %}
<a href="{{ ep_agenda_link }}">Agenda</a><br> <a href="{{ ep_agenda_link }}">Agenda</a>
{% if filename_agenda %}
<a href="{% url 'posts.show_pdf' post.slug filename_agenda %}">
<i class="far fa-file-pdf"></i>
</a>
{% endif %}
<br>
{% endif %} {% endif %}
{% if post.has_protocol %} {% if post.has_protocol %}
<a href="{{ ep_protocol_link }}">Protokoll</a><br> <a href="{{ ep_protocol_link }}">Protokoll</a>
{% if filename_protocol %}
<a href="{% url 'posts.show_pdf' post.slug filename_protocol %}">
<i class="far fa-file-pdf"></i>
</a>
{% endif %}
<br>
<hr> <hr>
{% endif %} {% endif %}