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Context processor na obrázek v pozadí

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This commit is contained in:
Jonas Havelka 2020-09-20 12:04:09 +02:00
parent 4c3a9470e9
commit 4bb974f1c1
8 changed files with 342 additions and 35 deletions
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171
data/fotka_header.json Normal file
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@ -0,0 +1,171 @@
[
{
"model": "mamweb.fotkaheader",
"pk": "baliky.jpg",
"fields": {
"cas": "2020-09-20T09:18:34.562Z",
"fotka": "header/baliky.jpg"
}
},
{
"model": "mamweb.fotkaheader",
"pk": "beh.jpg",
"fields": {
"cas": "2020-09-20T09:18:34.562Z",
"fotka": "header/beh.jpg"
}
},
{
"model": "mamweb.fotkaheader",
"pk": "kryptografie.jpg",
"fields": {
"cas": "2020-09-20T09:18:34.562Z",
"fotka": "header/kryptografie.jpg"
}
},
{
"model": "mamweb.fotkaheader",
"pk": "mam_cernobile.jpg",
"fields": {
"cas": "2020-09-20T09:18:34.562Z",
"fotka": "header/mam_cernobile.jpg"
}
},
{
"model": "mamweb.fotkaheader",
"pk": "noc.jpg",
"fields": {
"cas": "2020-09-20T09:18:34.562Z",
"fotka": "header/noc.jpg"
}
},
{
"model": "mamweb.fotkaheader",
"pk": "ohen.jpg",
"fields": {
"cas": "2020-09-20T09:18:34.562Z",
"fotka": "header/ohen.jpg"
}
},
{
"model": "mamweb.fotkaheader",
"pk": "snih.jpg",
"fields": {
"cas": "2020-09-20T09:18:34.562Z",
"fotka": "header/snih.jpg"
}
},
{
"model": "mamweb.fotkaheader",
"pk": "spolecna.jpg",
"fields": {
"cas": "2020-09-20T09:18:34.562Z",
"fotka": "header/spolecna.jpg"
}
},
{
"model": "mamweb.fotkaheader",
"pk": "stiny.jpg",
"fields": {
"cas": "2020-09-20T09:18:34.562Z",
"fotka": "header/stiny.jpg"
}
},
{
"model": "mamweb.fotkaheader",
"pk": "vikendovka.jpg",
"fields": {
"cas": "2020-09-20T09:18:34.562Z",
"fotka": "header/vikendovka.jpg"
}
},
{
"model": "mamweb.fotkaheader",
"pk": "vylet.jpg",
"fields": {
"cas": "2020-09-20T09:18:34.562Z",
"fotka": "header/vylet.jpg"
}
},
{
"model": "mamweb.fotkaurlvazba",
"pk": 1,
"fields": {
"url": "/archiv/",
"fotka": "stiny.jpg",
"denni_doba": "oboji"
}
},
{
"model": "mamweb.fotkaurlvazba",
"pk": 2,
"fields": {
"url": "/clanky/",
"fotka": "kryptografie.jpg",
"denni_doba": "den"
}
},
{
"model": "mamweb.fotkaurlvazba",
"pk": 3,
"fields": {
"url": "/clanky/",
"fotka": "ohen.jpg",
"denni_doba": "noc"
}
},
{
"model": "mamweb.fotkaurlvazba",
"pk": 4,
"fields": {
"url": "/zadani/",
"fotka": "baliky.jpg",
"denni_doba": "den"
}
},
{
"model": "mamweb.fotkaurlvazba",
"pk": 5,
"fields": {
"url": "/zadani/",
"fotka": "stiny.jpg",
"denni_doba": "noc"
}
},
{
"model": "mamweb.fotkaurlvazba",
"pk": 6,
"fields": {
"url": "/co-je-MaM/",
"fotka": "vikendovka.jpg",
"denni_doba": "den"
}
},
{
"model": "mamweb.fotkaurlvazba",
"pk": 7,
"fields": {
"url": "/co-je-MaM/",
"fotka": "noc.jpg",
"denni_doba": "noc"
}
},
{
"model": "mamweb.fotkaurlvazba",
"pk": 8,
"fields": {
"url": "/soustredeni/",
"fotka": "beh.jpg",
"denni_doba": "den"
}
},
{
"model": "mamweb.fotkaurlvazba",
"pk": 9,
"fields": {
"url": "/soustredeni/",
"fotka": "vylet.jpg",
"denni_doba": "noc"
}
}
]

11
mamweb/admin.py
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@ -1,4 +1,5 @@
from django.contrib import admin
from django.contrib.admin import ModelAdmin
from django.contrib.flatpages.models import FlatPage
# Note: we are renaming the original Admin and Form as we import them!
@ -7,7 +8,9 @@ from django.contrib.flatpages.admin import FlatpageForm as FlatpageFormOld
from django import forms
from ckeditor_uploader.widgets import CKEditorUploadingWidget
import mamweb.models as m
class FlatpageForm(FlatpageFormOld):
content = forms.CharField(widget=CKEditorUploadingWidget())
class Meta:
@ -22,3 +25,9 @@ class FlatPageAdmin(FlatPageAdminOld):
# We have to unregister the normal admin, and then reregister ours
admin.site.unregister(FlatPage)
admin.site.register(FlatPage, FlatPageAdmin)
class FotkaPozadiAdmin(ModelAdmin):
readonly_fields = ['cas']
admin.site.register(m.FotkaHeader, FotkaPozadiAdmin)
admin.site.register(m.FotkaUrlVazba)

35
mamweb/context_processors.py
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@ -1,12 +1,45 @@
from datetime import datetime, date
import random
from django.conf import settings
from mamweb.models import FotkaUrlVazba
def vzhled(request):
''' Podle casu prida do templatu, zdali je nebo neni noc '''
hodin = datetime.now().hour
if (hodin <= 6) or (hodin >= 20):
noc = True
nedoba = 'den'
doba = 'noc'
else:
noc = False
return {'noc' : noc}
nedoba = 'noc'
doba = 'den'
url = request.path
fotky = FotkaUrlVazba.objects.exclude(denni_doba=nedoba)
fotka = None
# TODO rychlejší patternmatch?
while (fotka is None) and (url != ''):
presne = fotky.filter(url__exact=url)
if presne.count() > 0:
presne_doba = presne.filter(denni_doba=doba)
if presne_doba.count() > 0:
fotka = random.choice(presne_doba).url_fotky()
else:
fotka = random.choice(presne).url_fotky()
url = url[:-1]
index = url.rfind('/')
if index != -1:
url = url[:index+1]
if fotka is None:
fotka = settings.STATIC_URL + "images/header/vikendovka.jpg"
return {'noc': noc, 'fotka': fotka}

60
mamweb/migrations/0001_initial.py Normal file
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@ -0,0 +1,60 @@
# Generated by Django 2.2.15 on 2020-09-20 09:14
from django.db import migrations, models
import django.db.models.deletion
import django.utils.timezone
from shutil import copytree
def zkopiruj_fotky(apps, schema_editor):
copytree("mamweb/static/images/header/", "media/header/", dirs_exist_ok=True)
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='FotkaHeader',
fields=[
('cas', models.DateTimeField(default=django.utils.timezone.now, help_text='Čas vložení fotky',
verbose_name='čas vložení fotky')),
('nazev',
models.CharField(help_text='Název např. archiv_noc', max_length=50, primary_key=True, serialize=False,
unique=True, verbose_name='název fotky')),
('fotka', models.ImageField(upload_to='header')),
],
options={
'verbose_name': 'fotka do pozadí menu',
'verbose_name_plural': 'fotky do pozadí menu',
'db_table': 'fotky_header',
'ordering': ['-cas'],
},
),
migrations.CreateModel(
name='FotkaUrlVazba',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('url',
models.CharField(blank=True, help_text='url prefix stránek např: /archiv/ nebo /', max_length=100,
verbose_name='URL')),
('denni_doba', models.CharField(choices=[('den', 'Zobrazit jen ve dne'), ('noc', 'Zobrazit jen v noci'),
('oboji', 'Zobrazovat pořád')], default='oboji', max_length=16,
verbose_name='denní doba')),
('fotka', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='mamweb.FotkaHeader',
verbose_name='fotka')),
],
options={
'verbose_name': 'vazba url a fotky do pozadí menu',
'verbose_name_plural': 'vazby url a fotek do pozadí menu',
'db_table': 'fotky_url_vazby',
'ordering': ['url'],
},
),
migrations.RunPython(zkopiruj_fotky, migrations.RunPython.noop),
]

0
mamweb/migrations/__init__.py Normal file
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65
mamweb/models.py Normal file
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@ -0,0 +1,65 @@
from django.core.exceptions import ValidationError
from django.db import models
from django.utils import timezone
class FotkaHeader(models.Model):
class Meta:
ordering = ['-cas']
db_table = 'fotky_header'
verbose_name = u'fotka do pozadí menu'
verbose_name_plural = u'fotky do pozadí menu'
cas = models.DateTimeField(u'čas vložení fotky', default=timezone.now, help_text='Čas vložení fotky')
nazev = models.CharField(
u'název fotky', null=False, blank=False, unique=True, primary_key=True,
max_length=50, help_text='Název např. archiv_noc'
)
fotka = models.ImageField(upload_to='header', null=False, blank=False)
def __str__(self):
return self.nazev
def clean(self):
if not self.fotka:
raise ValidationError("Chybí obrázek")
""" Kontroluje, zda sedí poměr stran """
if abs(self.fotka.width - (self.fotka.height * 970 / 350)) > 2:
raise ValidationError("Obrázek by měl mít rozměry 970w na 350h, nebo alespoň podobný poměr stran.")
super().clean()
class FotkaUrlVazba(models.Model):
class Meta:
ordering = ['url']
db_table = 'fotky_url_vazby'
verbose_name = u'vazba url a fotky do pozadí menu'
verbose_name_plural = u'vazby url a fotek do pozadí menu'
url = models.CharField(
u'URL', blank=True, null=False, max_length=100,
help_text='url prefix stránek např: /archiv/ nebo /'
)
fotka = models.ForeignKey(
FotkaHeader, blank=False, null=False, verbose_name='fotka',
on_delete=models.CASCADE
)
DOBA_DEN = 'den'
DOBA_NOC = 'noc'
DOBA_OBOJI = 'oboji'
DOBA_CHOICES = [
(DOBA_DEN, 'Zobrazit jen ve dne'),
(DOBA_NOC, 'Zobrazit jen v noci'),
(DOBA_OBOJI, 'Zobrazovat pořád')]
denni_doba = models.CharField('denní doba', max_length=16, choices=DOBA_CHOICES, blank=False, default=DOBA_OBOJI)
def __str__(self):
return self.url
def url_fotky(self):
return self.fotka.fotka.url

32
mamweb/static/css/mamweb.css
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@ -193,38 +193,6 @@ h1 {
top: 58px;
}
/*
fotky:
todo url
kryptografie
baliky
beh
mam_cernobile -pro archiv? asi ne
vylet
spolecna -spíš ne, moc lidí
snih
ohen
noc
stiny
vikendovka
*/
#header.cojemam { background-image: url("../images/header/vikendovka.jpg");}
#header.soustredeni { background-image: url("../images/header/beh.jpg");}
#header.zadani { background-image: url("../images/header/baliky.jpg");}
#header.clanky { background-image: url("../images/header/kryptografie.jpg");}
#header.archiv { background-image: url("../images/header/stiny.jpg");}
#header.NOC {background-image: url("../images/header/noc.jpg");}
#header.NOCcojemam { background-image: url("../images/header/noc.jpg");}
#header.NOCsoustredeni { background-image: url("../images/header/vylet.jpg");}
#header.NOCzadani { background-image: url("../images/header/stiny.jpg");}
#header.NOCclanky { background-image: url("../images/header/ohen.jpg");}
#header.NOCarchiv { background-image: url("../images/header/stiny.jpg");}
#header img.logo {
position: absolute center;
width: 100%;

3
mamweb/templates/base.html
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@ -56,7 +56,8 @@
<div class='col-md-12'>
<a href='/'>
<div id="title" >M&M - korespondenční seminář a časopis MFF&nbspUK</div>
<div id="header" class="{% if noc %}NOC{% endif %}{% block header %}{% endblock %}">
<div id="header" style="background-image: url('{{ fotka }}')">
{# TODO style=… není fancy řešení, ale u <img> se bojím, že mi to rozbije vzhled #}
{% sitetree_menu from "main_menu" include "trunk" template "logo.html" %}
<img class="logo-mobile" src="{% static 'images/logo-mobile.svg' %}" />
</div>