Bc. Petr Pecha
9 years ago
5 changed files with 121 additions and 0 deletions
@ -0,0 +1,7 @@ |
|||
======== |
|||
| TODO | |
|||
|======| |
|||
|
|||
* zvolit velikosti velke a male fotky |
|||
* vycteni EXIFu |
|||
* razeni podle casu |
@ -0,0 +1,114 @@ |
|||
# coding: utf-8 |
|||
|
|||
from django.db import models |
|||
import seminar.models |
|||
from django.db.models import Q |
|||
from django.utils import timezone |
|||
|
|||
from PIL import Image |
|||
import os |
|||
from cStringIO import StringIO |
|||
from django.core.files.base import ContentFile |
|||
|
|||
from seminar.models import Soustredeni |
|||
|
|||
VZDY=0 |
|||
ORG=1 |
|||
NIKDY=2 |
|||
VIDITELNOST = ( |
|||
(VZDY, 'Vždy'), |
|||
(ORG, 'Organizátorům'), |
|||
(NIKDY, 'Nikdy'), |
|||
) |
|||
|
|||
class Obrazek(models.Model): |
|||
# TODO vkladat do slozek podle soustredeni |
|||
obrazek_velky = models.ImageField(upload_to='Galerie/%Y/%m/%d', |
|||
help_text = "Lze vložit libovolně velký obrázek. Ideální je, aby alespoň jeden rozměr měl alespoň 500px.") |
|||
obrazek_stredni = models.ImageField(upload_to='Galerie/%Y/%m/%d/stredni', null = True, editable = False) |
|||
obrazek_maly = models.ImageField(upload_to='Galerie/%Y/%m/%d/male', null = True, editable = False) |
|||
nazev = models.CharField('Název', max_length=50, blank = True, null = True) |
|||
popis = models.TextField('Popis', blank = True, null = True) |
|||
datum_vlozeni = models.DateTimeField('Datum vložení', auto_now_add = True) |
|||
datum = models.DateTimeField('Datum pořízení fotografie', blank = False) # TODO zjistit z EXIFU |
|||
galerie = models.ForeignKey('Galerie') |
|||
poradi = models.IntegerField('Pořadí', blank = True, null = True) |
|||
def __unicode__(self): |
|||
return self.nazev + " -- " + unicode(self.obrazek_velky.name) + " (" + str(self.datum) + ")" |
|||
class Meta: |
|||
verbose_name = 'Obrázek' |
|||
verbose_name_plural = 'Obrázky' |
|||
def save(self): |
|||
original = Image.open(self.obrazek_velky) |
|||
jmeno = os.path.basename(self.obrazek_velky.file.name) |
|||
Obrazek._vyrobMiniaturu(original, jmeno, 500, self.obrazek_stredni) |
|||
Obrazek._vyrobMiniaturu(original, jmeno, 200, self.obrazek_maly) |
|||
super(Obrazek, self).save() |
|||
|
|||
@staticmethod |
|||
def _vyrobMiniaturu(original, jmeno, maximum, field): |
|||
zmensenina = Obrazek._zmensiObrazek(original, maximum) |
|||
f = StringIO() |
|||
try: |
|||
zmensenina.save(f, format=original.format) |
|||
data = ContentFile(f.getvalue()) |
|||
finally: |
|||
f.close() |
|||
field.save(jmeno, data, save = False) |
|||
|
|||
@staticmethod |
|||
def _zmensiObrazek(original, maximum): |
|||
"""Preskaluje obrazek tak, aby byl zachovan pomer stran a zadny rozmer |
|||
nepresahoval maxRozmer. Pokud zadny rozmer nepresahuje maxRozmer, tak |
|||
vrati puvodni obrazek (tj. nedojde ke zvetseni obrazku).""" |
|||
novaVelikost = Obrazek._zmensiVelikost(original.size, maximum) |
|||
return original.resize(novaVelikost, Image.ANTIALIAS) |
|||
|
|||
@staticmethod |
|||
def _zmensiVelikost(velikost, maximum): |
|||
maximum = float(maximum) |
|||
w, h = velikost |
|||
soucasneMaximum = max(w, h) |
|||
if soucasneMaximum <= maximum: |
|||
return velikost |
|||
pomer = maximum/soucasneMaximum |
|||
return (int(w * pomer), int(h * pomer)) |
|||
|
|||
|
|||
class Galerie(models.Model): |
|||
nazev = models.CharField('Název', max_length=100) |
|||
datum_vytvoreni = models.DateTimeField('Datum vytvoření', auto_now_add = True) |
|||
datum_zmeny = models.DateTimeField('Datum poslední změny', auto_now = True) |
|||
popis = models.TextField('Popis', blank = True, null = True) |
|||
titulni_obrazek = models.ForeignKey(Obrazek, blank = False, null = True, related_name = "+", on_delete = models.SET_NULL) |
|||
zobrazit = models.IntegerField('Zobrazit?', default = ORG, choices = VIDITELNOST) |
|||
galerie_up = models.ForeignKey('Galerie', blank = True, null = True) |
|||
soustredeni = models.ForeignKey(Soustredeni, blank = True, null = True) |
|||
|
|||
def __unicode__(self): |
|||
return self.nazev |
|||
class Meta: |
|||
verbose_name = 'Galerie' |
|||
verbose_name_plural = 'Galerie' |
|||
|
|||
#def link_na_preview(self): |
|||
#"""Odkaz na galerii, používá se v admin rozhranní. """ |
|||
#return '<a href="/fotogalerie/galerie/%s/">Preview</a>' % self.id |
|||
#link_na_preview.allow_tags = True |
|||
#link_na_preview.short_description = 'Zobrazit galerii' |
|||
# |
|||
#def je_publikovano(self): |
|||
#"""Vraci True, pokud je tato galerie publikovana. """ |
|||
#if self.zobrazit == VZDY: |
|||
#return True |
|||
#if self.zobrazit == PODLE_CLANKU: |
|||
#for clanek in self.clanek_set.all(): |
|||
#if clanek.je_publikovano(): |
|||
#return True |
|||
#return False |
|||
# |
|||
#@staticmethod |
|||
#def publikovane_galerie(): |
|||
#"""Vraci galerie, ktere uz maji byt publikovane.""" |
|||
#clanky = Blog.models.Clanek.publikovane_clanky() |
|||
#return Galerie.objects.filter(Q(zobrazit=VZDY) | (Q(clanek__in=clanky) & Q(zobrazit=PODLE_CLANKU))).distinct() |
After Width: | Height: | Size: 1.2 KiB |
After Width: | Height: | Size: 1.2 KiB |
Loading…
Reference in new issue