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from __future__ import division
import os
import Image
from django.db import models
from datetime import datetime, timedelta
from django.utils.translation import ugettext as _
from walkerfree.settings import MEDIA_ROOT
from django.db.models.fields.files import ImageFieldFile
'''
上传图片的路径
'''
UPLOAD_ROOT = 'upload'
LARGE_ROOT = 'upload/large'
MIDDLE_ROOT = 'upload/middle'
SMALL_ROOT = 'upload/small'
def make_large_thumb(path, size = 480):
pixbuf = Image.open(path)
width, height = pixbuf.size
if width > size:
delta = width / size
height = int(height / delta)
pixbuf.thumbnail((size, height), Image.ANTIALIAS)
return pixbuf
def make_middle_thumb(path, size = 320):
pixbuf = Image.open(path)
width, height = pixbuf.size
if width > size:
delta = width / size
height = int(height / delta)
pixbuf.thumbnail((size, height), Image.ANTIALIAS)
return pixbuf
def make_small_thumb(path, size = 100):
pixbuf = Image.open(path)
width, height = pixbuf.size
if width > size:
delta = width / size
height = int(height / delta)
pixbuf.thumbnail((size, height), Image.ANTIALIAS)
return pixbuf
class Woman(models.Model):
IS_SHOW_CHOICES = (
('0',0),
('1',1)
)
title = models.CharField(max_length=255,help_text='标题')
description = models.TextField(null=False,help_text='描述')
url_address = models.URLField(max_length=255,help_text='信息地址')
large_image = models.ImageField(upload_to = 'upload/large')
middle_image = models.ImageField(upload_to = 'upload/middle')
small_image = models.ImageField(upload_to = 'upload/small')
large_image_url_address = models.URLField(null=True, blank=True, max_length=255, help_text='大图片的地址')
middle_image_url_address = models.URLField(null=True, blank=True, max_length=255, help_text='中等图片的地址')
small_image_url_address = models.URLField(null=True, blank=True, max_length=255, help_text='小图片的地址')
is_show = models.PositiveSmallIntegerField(default=0, choices=IS_SHOW_CHOICES,null=True,help_text='是否在最前端显示')
create_date = models.DateTimeField(auto_now=True,auto_now_add=True,help_text='创建日期')
update_date = models.DateTimeField(auto_now=True,auto_now_add=True,help_text='更新日期')
class Meta:
verbose_name_plural = _('Woman')
def save(self):
super(Woman, self).save()
large_image_base, large_image_ext = os.path.splitext(os.path.basename(self.large_image.path))
middle_image_base, middle_image_ext = os.path.splitext(os.path.basename(self.middle_image.path))
small_image_base, small_image_ext = os.path.splitext(os.path.basename(self.small_image.path))
large_thumb_pixbuf = make_large_thumb(os.path.join(MEDIA_ROOT, self.large_image.name))
middle_thumb_pixbuf = make_middle_thumb(os.path.join(MEDIA_ROOT, self.middle_image.name))
small_thumb_pixbuf = make_small_thumb(os.path.join(MEDIA_ROOT, self.small_image.name))
large_relate_thumb_path = os.path.join(LARGE_ROOT, large_image_base + '_large_' + large_image_ext)
middle_relate_thumb_path = os.path.join(MIDDLE_ROOT, middle_image_base + '_middle_' + middle_image_ext)
small_relate_thumb_path = os.path.join(SMALL_ROOT, small_image_base + '_small_' + small_image_ext)
large_thumb_path = os.path.join(MEDIA_ROOT, large_relate_thumb_path)
middle_thumb_path = os.path.join(MEDIA_ROOT, middle_relate_thumb_path)
small_thumb_path = os.path.join(MEDIA_ROOT, small_relate_thumb_path)
large_thumb_pixbuf.save(large_thumb_path)
middle_thumb_pixbuf.save(middle_thumb_path)
small_thumb_pixbuf.save(small_thumb_path)
self.large_image = ImageFieldFile(self, self.large_image, large_thumb_path)
self.middle_image = ImageFieldFile(self, self.middle_image, middle_thumb_path)
self.small_image = ImageFieldFile(self, self.small_image, small_thumb_path)
super(Woman, self).save()
def __unicode__(self):
return self.title
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