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path: root/app/blog/models.py
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import datetime
from django.contrib.gis.db import models
from django.utils.html import format_html
from django.conf import settings
from django.contrib.syndication.views import Feed
from django.contrib.sitemaps import Sitemap
from django import forms
# http://freewisdom.org/projects/python-markdown/
import markdown
from photos.models import PhotoGallery
from locations.models import Location


def get_upload_path(self, filename):
    return "images/post-images/%s/%s" % (datetime.datetime.today().strftime("%Y"), filename)


def get_tn_path(self, filename):
    return "images/post-thumbnail/%s/%s" % (datetime.datetime.today().strftime("%Y"), filename)


def image_url_replace(str):
    str = str.replace('[[base_url]]', settings.IMAGES_URL)
    return str


class PostImage(models.Model):
    title = models.CharField(max_length=100)
    image = models.ImageField(upload_to="%s/%s" % (settings.IMAGES_ROOT, datetime.datetime.today().strftime("%Y")))

    def __unicode__(self):
        return self.title

    def post_image(self):
        return format_html('<img src="%s%s" alt="%s" class="postpic"/>' % (
            settings.IMAGES_URL,
            self.image.url.split('images')[1].split('/', 1)[1],
            self.title)
        )

    post_image.allow_tags = True


class Entry(models.Model):
    title = models.CharField(max_length=200)
    slug = models.SlugField(unique_for_date='pub_date')
    body_html = models.TextField(blank=True)
    body_markdown = models.TextField()
    dek = models.TextField(null=True, blank=True)
    pub_date = models.DateTimeField('Date published')
    enable_comments = models.BooleanField(default=False)
    point = models.PointField(null=True, blank=True)
    location = models.ForeignKey(Location, null=True, blank=True)
    PUB_STATUS = (
        (0, 'Draft'),
        (1, 'Published'),
    )
    status = models.IntegerField(choices=PUB_STATUS, default=0)
    photo_gallery = models.ForeignKey(PhotoGallery, blank=True, null=True, verbose_name='photo set')
    image = models.FileField(upload_to=get_upload_path, null=True, blank=True)
    thumbnail = models.FileField(upload_to=get_tn_path, null=True, blank=True)
    meta_description = models.CharField(max_length=256, null=True, blank=True)
    TEMPLATES = (
        (0, 'single'),
        (1, 'double'),
        (2, 'single-dark'),
        (3, 'double-dark'),
        (4, 'bigimg'),
        (5, 'bigimg-dark'),
    )
    template_name = models.IntegerField(choices=TEMPLATES, default=0)

    class Meta:
        ordering = ('-pub_date',)
        get_latest_by = 'pub_date'
        verbose_name_plural = 'entries'

    def __str__(self):
        return self.title

    def get_absolute_url(self):
        return "/jrnl/%s/%s" % (self.pub_date.strftime("%Y/%m").lower(), self.slug)

    def get_absolute_url_old(self):
        return "/%s/%s/" % (self.pub_date.strftime("%Y/%b/%d").lower(), self.slug)

    def comment_period_open(self):
        return self.enable_comments and datetime.datetime.today() - datetime.timedelta(30) <= self.pub_date

    def get_thumbnail_url(self):
        image_dir, img = self.thumbnail.url.split('post-thumbnail/')[1].split('/')
        return '%spost-thumbnail/%s/%s' % (settings.IMAGES_URL, image_dir, img)

    def get_image_url(self):
        image_dir, img = self.image.url.split('post-images/')[1].split('/')
        return '%spost-images/%s/%s' % (settings.IMAGES_URL, image_dir, img)

    def get_image_wide_url(self):
        img = self.image.url.split('post-images/')[1].split('/')[1]
        #return '%shome-images/%s' % (settings.IMAGES_URL, img)
        return '/media/images/home-images/%s' % (img)

    def get_image_hero_url(self):
        img = self.image.url.split('post-images/')[1].split('/')[1]
        return '/media/images/home-images/hero%s' % (img)
    
    def get_image_hero_url_sm(self):
        img = self.image.url.split('post-images/')[1].split('/')[1]
        import os
        img = os.path.splitext(img)[0]
        return '/media/images/home-images/hero%s_sm.jpg' % (img)

    @property
    def state(self):
        return self.location.state

    @property
    def country(self):
        return self.location.state.country

    @property
    def region(self):
        return self.location.state.country.lux_region

    @property
    def longitude(self):
        '''Get the site's longitude.'''
        return self.point.x

    @property
    def latitude(self):
        '''Get the site's latitude.'''
        return self.point.y

    @property
    def get_previous_published(self):
        return self.get_previous_by_pub_date(status__exact=1)

    @property
    def get_next_published(self):
        return self.get_next_by_pub_date(status__exact=1)

    def save(self):
        md = image_url_replace(self.body_markdown)
        self.body_html = markdown.markdown(md, extensions=['extra'], safe_mode=False)
        self.dek == markdown.markdown(self.dek, safe_mode=False)
        try:
            self.location = Location.objects.filter(geometry__contains=self.point).get()
        except Location.DoesNotExist:
            raise forms.ValidationError("There is no location associated with that point, add it:  %sadmin/locations/location/add/" % (settings.BASE_URL))
        super(Entry, self).save()


class EntryAside(models.Model):
    title = models.CharField(max_length=200)
    body = models.TextField(null=True, blank=True)
    entry = models.ForeignKey(Entry)

class HomepageCurrator(models.Model):
    banner = models.ForeignKey(Entry, related_name="banner")
    entry_list = models.ManyToManyField(Entry)
    template_name = models.CharField(max_length=200,help_text="full path")


class BlogSitemap(Sitemap):
    changefreq = "never"
    priority = 1.0
    protocol = "https"

    def items(self):
        return Entry.objects.filter(status=1)

    def lastmod(self, obj):
        return obj.pub_date


class LatestFull(Feed):
    title = "Luxagraf: Topographical Writings"
    link = "/writing/"
    description = "Latest postings to luxagraf.net"
    description_template = 'feeds/blog_description.html'

    def items(self):
        return Entry.objects.filter(status__exact=1).order_by('-pub_date')[:10]


import os
import io
import urllib.request
import urllib.parse
import urllib.error
import shutil
from django_gravatar.helpers import get_gravatar_url, has_gravatar, get_gravatar_profile_url, calculate_gravatar_hash
from django.dispatch import receiver
from django_comments.signals import comment_was_posted
from django_comments import Comment
from django_comments.moderation import CommentModerator, moderator

class EntryModerator(CommentModerator):
    '''
    Moderate everything except people with multiple approvals
    '''
    email_notification = True

    def moderate(self, comment, content_object, request):
        previous_approvals = Comment.objects.filter(user_email=comment.email, is_public=True).count()
        if previous_approvals > 2:
            return False
            #do entry build right here so it goes to live site
        return True

moderator.register(Entry, EntryModerator)

@receiver(comment_was_posted, sender=Comment)
def cache_gravatar(sender, comment, **kwargs):
    gravatar_exists = has_gravatar(comment.email)
    grav_dir = settings.IMAGES_ROOT + '/gravcache/'
    if gravatar_exists:
        url = get_gravatar_url(comment.email, size=60)
        if not os.path.isdir(grav_dir):
            os.makedirs(grav_dir)
        local_grav = '%s/%s.jpg' % (grav_dir, calculate_gravatar_hash(comment.email))
        urllib.request.urlretrieve(url, local_grav)
    else:
        dest = '%s/%s.jpg' % (grav_dir, calculate_gravatar_hash(comment.email))
        src = settings.IMAGES_ROOT + '/gravcache/default.jpg'
        try:
            shutil.copy(src, dest)
        # eg. src and dest are the same file
        except shutil.Error as e:
            print('Error: %s' % e)
        # eg. source or destination doesn't exist
        except IOError as e:
            print('Error: %s' % e.strerror)