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# coding: utf-8
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import random
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from django.http import HttpResponse, Http404
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from django.shortcuts import render, HttpResponseRedirect, get_object_or_404
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from django.template import RequestContext
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from datetime import datetime
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from galerie.models import Obrazek, Galerie
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from soustredeni.models import Soustredeni
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from galerie.forms import KomentarForm, NewGalerieForm
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def zobrazit(galerie, request):
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preview = False
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if galerie.zobrazit >= 1:
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if request.user.je_org:
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preview = True;
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else:
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raise Http404
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return preview
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def cesta_od_korene(g):
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"""Vrátí seznam galerií od kořene ke g"""
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cesta = []
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while g is not None:
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cesta.append(g)
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g = g.galerie_up
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return reversed(cesta)
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def nahled(request, pk, soustredeni):
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"""Zobrazeni nahledu vsech fotek ve skupine."""
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galerie = get_object_or_404(Galerie, pk=pk)
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podgalerie = Galerie.objects.filter(galerie_up = galerie).order_by('poradi')
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if not request.user.je_org:
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podgalerie = podgalerie.filter(zobrazit__lt=1)
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obrazky = Obrazek.objects.filter(galerie = galerie).order_by('poradi', 'nazev')
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preview = zobrazit(galerie, request)
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sourozenci = []
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if galerie.galerie_up:
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sourozenci = galerie.galerie_up.galerie_set.all().order_by('poradi')
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if not request.user.je_org:
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sourozenci = sourozenci.filter(zobrazit__lt=1)
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predchozi = None
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nasledujici = None
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minuly = None
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for g in sourozenci:
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if g.pk == galerie.pk:
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predchozi = minuly
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if minuly is not None and minuly.pk == galerie.pk:
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nasledujici = g
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break
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minuly = g
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cesta = cesta_od_korene(galerie)
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return render(request, 'galerie/GalerieNahled.html',
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{'galerie' : galerie,
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'podgalerie' : podgalerie,
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'obrazky' : obrazky,
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'preview' : preview,
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'cesta': cesta,
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'sourozenci': sourozenci,
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'predchozi': predchozi,
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'nasledujici': nasledujici,
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})
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def detail(request, pk, fotka, soustredeni):
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"""Zobrazeni nahledu fotky s id 'fotka'."""
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MAX_VYSKA = 900
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MAX_SIRKA = 900
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MAX_VYSKA_MALA = 100
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MAX_SIRKA_MALA = 200
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NAHLEDU = 1
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galerie = get_object_or_404(Galerie, pk=pk)
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preview = zobrazit(galerie, request)
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obrazek = get_object_or_404(Obrazek, pk=fotka)
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obrazky = galerie.obrazek_set.all().order_by('poradi', 'nazev')
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# vytvoreni a obslouzeni formulare
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if request.method == 'POST':
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form = KomentarForm(request.POST)
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if form.is_valid():
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obrazek.popis = form.cleaned_data['komentar']
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obrazek.save()
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else:
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form = KomentarForm({'komentar': obrazek.popis})
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# Poradi aktualniho obrazku v galerii/stitku.
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for i in range(len(obrazky)):
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if obrazky[i] == obrazek:
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poradi = i
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break
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else:
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# Obrazek neni v galerii/stitku.
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raise Http404
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# Nacteni okolnich obrazku a galerii
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# TODO vyjmout zjisteni predchozich a nasledujicich galerii
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# a udelat z toho funkci, ktera se pouzije u nahledu
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predchozi_galerie = None
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nasledujici_galerie = None
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obrazky_dalsi = obrazky[poradi+1:poradi+NAHLEDU+1]
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if (poradi+1) > NAHLEDU:
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obrazky_predchozi = obrazky[poradi-NAHLEDU:poradi]
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else:
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obrazky_predchozi = obrazky[0:poradi]
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if galerie.poradi > 1:
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predchozi_galerie = Galerie.objects.\
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filter(galerie_up=galerie.galerie_up).\
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filter(poradi=(galerie.poradi-1))
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if predchozi_galerie:
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predchozi_galerie = predchozi_galerie[0]
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else:
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predchozi_galerie = None
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if (poradi+1) == len(obrazky): # Tohle je poslední obrázek
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if (galerie.poradi is not None
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and galerie.galerie_up is not None):
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nasledujici_galerie = Galerie.objects.\
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filter(galerie_up=galerie.galerie_up).\
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filter(poradi=(galerie.poradi+1))
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else:
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nasledujici_galerie = None
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if nasledujici_galerie:
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nasledujici_galerie = nasledujici_galerie[0]
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else:
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nasledujici_galerie = None
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# Preskalovani obrazku do vybraneho prostoru.
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vyska = obrazek.obrazek_stredni.height
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sirka = obrazek.obrazek_stredni.width
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if vyska > MAX_VYSKA:
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sirka = sirka * MAX_VYSKA / vyska
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vyska = MAX_VYSKA
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if sirka > MAX_SIRKA:
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vyska = vyska * MAX_SIRKA / sirka
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sirka = MAX_SIRKA
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return render(request, 'galerie/Galerie.html',
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{'galerie' : galerie,
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'predchozi_galerie' : predchozi_galerie,
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'nasledujici_galerie' : nasledujici_galerie,
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'obrazek' : obrazek,
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'vyska' : vyska,
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'sirka' : sirka,
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'obrazky_predchozi' : obrazky_predchozi,
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'obrazky_dalsi' : obrazky_dalsi,
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'preview' : preview,
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'form' : form,
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'cesta': cesta_od_korene(galerie),
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})
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def new_galerie(request, galerie, soustredeni):
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# zjistime k jakemu soustredeni se vaze nove vytvarena galerie
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soustredeni = get_object_or_404(Soustredeni, pk = soustredeni)
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# pokud je parametr galerie 0, pak jde o hlavni galerii
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# kdyz je nejaky jiny, pak je pk galerie pod kterou tu dalsi vytvarim
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if int(galerie) == 0:
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galerie_up = False
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galerie_text = "Hlavní fotogalerie soustředění"
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else:
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galerie_up = get_object_or_404(Galerie, pk = int(galerie))
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galerie_text = "podgalerii ke galerii " + str(galerie_up)
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# obsluha formulare umoznujiciho multiple nahravani fotek
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if request.method == 'POST':
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form = NewGalerieForm(request.POST, request.FILES)
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if form.is_valid():
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# vytvoreni nove galerie
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gal = Galerie()
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gal.nazev = form.cleaned_data['nazev']
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#gal.popis = form.cleaned_data['popis'] # popis nepouzivame
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gal.zobrazit = 1 # galerie je v procesu vytvareni
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''' pokud je to podgalerie pridej nadrazenou galerii
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a nadrazene soustredeni nechej volne,
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pokud je to hlavni galerie, tak nadrazena galerie neexistuje,
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ale v takovem pripade musi byt nadrazene soustredeni a ne jinak '''
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if galerie_up:
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gal.galerie_up = galerie_up
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else:
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gal.soustredeni = soustredeni
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if gal.galerie_up:
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gal.poradi = int(len(gal.galerie_up.galerie_set.all())) + 1
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gal.save()
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# zpracovani obrazku v galerii
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for obr in request.FILES.getlist('obr'):
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o = Obrazek()
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o.obrazek_velky = obr
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o.nazev = str(obr)
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o.galerie = gal
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o.save()
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# presmerovani na prave vzniklou galerii
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return HttpResponseRedirect('../../' + str(gal.pk))
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else:
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form = NewGalerieForm()
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return render(request, 'galerie/GalerieNew.html',
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{
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'form' : form,
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'soustredeni' : soustredeni,
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'galerie_text' : galerie_text,
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})
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def plus_galerie(request, galerie, soustredeni, subgalerie):
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galerie = get_object_or_404(Galerie, pk=subgalerie)
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if galerie.poradi:
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galerie.poradi += 1
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else:
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galerie.poradi = int(len(galerie.galerie_up.galerie_set.all()))
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galerie.save()
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return HttpResponseRedirect('../../')
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def minus_galerie(request, galerie, soustredeni, subgalerie):
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galerie = get_object_or_404(Galerie, pk=subgalerie)
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if galerie.poradi:
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galerie.poradi -= 1
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else:
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galerie.poradi = 1
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galerie.save()
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return HttpResponseRedirect('../../')
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