Squashed commit of the following:
commit 0d62e72d72922a84e41c9f2cc21977b794784d1c Merge: 79fee6385f2a81
Author: reverend <reverend@reverend2048.de> Date: Tue Sep 22 21:55:18 2020 +0200 Merge branch 'develop' into refactor/models commit 79fee631d7ac28509067ecdd74078f1a2f6e0be2 Author: reverend <reverend@reverend2048.de> Date: Tue Sep 22 21:54:32 2020 +0200 Updating references for related name commit 8e07e79df2de2601f2e2eadfdd37eb7c719c51b0 Author: reverend <reverend@reverend2048.de> Date: Tue Sep 22 21:53:31 2020 +0200 Generating of related names fix commit 5fd804f37a805ae4707e13c3d941bdde3660afea Merge: 8cc1d3e3b526c9
Author: reverend <reverend@reverend2048.de> Date: Tue Sep 22 21:01:48 2020 +0200 Merge branch 'develop' into refactor/models commit 8cc1d3e690211dba6451e86569f00078b23e0621 Author: reverend <reverend@reverend2048.de> Date: Tue Sep 22 20:21:08 2020 +0200 Tests commit 7c0591e5397f892b1f6fb80725a693c21f90468a Author: reverend <reverend@reverend2048.de> Date: Fri Sep 18 23:53:39 2020 +0200 Testing PlaceAsset commit 2e7b49ad1a15173565c81e7eb8bb3f35b9f622a6 Author: reverend <reverend@reverend2048.de> Date: Fri Sep 18 22:25:08 2020 +0200 Restructuring models commit eb7d03b08b326f9115e70d0fd9ed5d0fc229a362 Author: reverend <reverend@reverend2048.de> Date: Fri Sep 18 22:01:54 2020 +0200 Abstract class Expireable commit 2b51e741bb5734c5a578beeadef7819fe58b2223 Author: reverend <reverend@reverend2048.de> Date: Fri Sep 18 21:54:07 2020 +0200 Abstract Model for PlaceAsset (i.e. Photoalbums)
This commit is contained in:
parent
85f2a81ebb
commit
5f304b91f3
@ -47,7 +47,7 @@ A mapable model has to provide its own get_absolute_url, in order to provide a l
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### Submittable
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### Submittable
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The abstract model Submittable represents an model that can be submitted by an user. It knows who submitted something and when:
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The abstract model Submittable represents an model that can be submitted by an user. It knows who submitted something and when:
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`submitted_by`
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`submitted_by`
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Referencing the explorer profile, see [Explorer](##explorer-user-profile). If the explorer profile is deleted, this instance is kept (on_delete=models.SET_NULL). The related_name is set to the class name, lower case appending an s (%(class)s)
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Referencing the explorer profile, see [Explorer](##explorer-user-profile). If the explorer profile is deleted, this instance is kept (on_delete=models.SET_NULL). The related_name is set to the class name, lower case appending an s (%(class)ss)
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`submitted_when`
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`submitted_when`
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When the object was submitted, automatically set by django (auto_now_add=True)
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When the object was submitted, automatically set by django (auto_now_add=True)
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@ -1,243 +0,0 @@
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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'''
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(Data)models which describe the structure of data to be saved into
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database.
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'''
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import os
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import uuid
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from django.urls import reverse
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from django.db import models
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from django.contrib.auth.models import User
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from django.db.models.signals import post_save
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from django.dispatch import receiver
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from django.core.validators import MaxValueValidator, MinValueValidator
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from django.utils import timezone
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from easy_thumbnails.fields import ThumbnailerImageField
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from easy_thumbnails.files import get_thumbnailer
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from taggit.managers import TaggableManager
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# Create your models here.
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class Explorer(models.Model):
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"""
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Profile that is linked to the a User.
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Every user has a profile.
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"""
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user = models.OneToOneField(
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User,
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on_delete=models.CASCADE,
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related_name='explorer'
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)
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def __str__(self):
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return self.user.username
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@receiver(post_save, sender=User)
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def create_user_profile(sender, instance, created, **kwargs):
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if created:
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Explorer.objects.create(user=instance)
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@receiver(post_save, sender=User)
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def save_user_profile(sender, instance, **kwargs):
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instance.explorer.save()
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class Taggable(models.Model):
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'''
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This abstract model represtens an object that is taggable
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using django-taggit
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'''
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class Meta:
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abstract = True
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tags = TaggableManager(blank=True)
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class Mapable(models.Model):
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'''
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This abstract model class represents an object that can be
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displayed on a map. Subclasses have to provide absolute urls,
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see https://docs.djangoproject.com/en/3.1/ref/models/instances/#get-absolute-url
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'''
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class Meta:
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abstract = True
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name = models.CharField(max_length=50)
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latitude = models.FloatField(
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validators=[
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MinValueValidator(-90),
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MaxValueValidator(90)
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]
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)
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longitude = models.FloatField(
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validators=[
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MinValueValidator(-180),
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MaxValueValidator(180)
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]
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)
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class Submittable(models.Model):
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'''
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This abstract model class represents an object that can be submitted by
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an explorer.
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'''
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class Meta:
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abstract = True
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submitted_when = models.DateTimeField(auto_now_add=True, null=True)
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submitted_by = models.ForeignKey(
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Explorer,
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on_delete=models.SET_NULL,
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null=True,
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blank=True,
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related_name='%(class)s'
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)
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class Voucher(models.Model):
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"""
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Vouchers are authorization tokens to allow the registration of new users.
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A voucher has a code, a creation and a deletion date, which are all
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positional. Creation date is being set automatically during voucher
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creation.
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"""
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code = models.CharField(unique=True, max_length=30)
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created_when = models.DateTimeField(auto_now_add=True)
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expires_when = models.DateTimeField()
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@property
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def valid(self):
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return timezone.now() <= self.expires_when
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def __str__(self):
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return "Voucher " + str(self.pk)
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class Place(Submittable, Taggable, Mapable):
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"""
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Place defines a lost place (location, name, description etc.).
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"""
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location = models.CharField(max_length=50)
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description = models.TextField()
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def get_absolute_url(self):
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return reverse('place_detail', kwargs={'pk': self.pk})
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@classmethod
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# Get center position of LP-geocoordinates.
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def average_latlon(cls, place_list):
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amount = len(place_list)
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# Init fill values to prevent None
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longitude = 0
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latitude = 0
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if amount > 0:
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for place in place_list:
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longitude += place.longitude
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latitude += place.latitude
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return {'latitude':latitude / amount, 'longitude': longitude / amount}
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return {'latitude': latitude, 'longitude': longitude}
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def __str__(self):
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return self.name
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def generate_image_upload_path(instance, filename):
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"""
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Callback for generating path for uploaded images.
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Returns filename as: place_pk-placename{-rnd_string}.jpg
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"""
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return 'places/' + str(instance.place.pk) + '-' + str(instance.place.name) + '.' + filename.split('.')[-1]
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class PlaceImage (Submittable):
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"""
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PlaceImage defines an image file object that points to a file in uploads/.
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Intermediate image sizes are generated as defined in THUMBNAIL_ALIASES.
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PlaceImage references a Place to which it belongs.
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"""
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description = models.TextField(blank=True)
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filename = ThumbnailerImageField(
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upload_to=generate_image_upload_path,
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resize_source=dict(size=(2560, 2560),
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sharpen=True)
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)
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place = models.ForeignKey(
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Place,
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on_delete=models.CASCADE,
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related_name='placeimages'
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)
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def __str__(self):
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"""
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Returning the name of the corresponding place + id
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of this image as textual representation of this instance
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"""
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return 'Image ' + str(self.pk)
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# These two auto-delete files from filesystem when they are unneeded:
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@receiver(models.signals.post_delete, sender=PlaceImage)
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def auto_delete_file_on_delete(sender, instance, **kwargs):
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"""
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Deletes file (including thumbnails) from filesystem
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when corresponding `PlaceImage` object is deleted.
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"""
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if instance.filename:
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# Get and delete all files and thumbnails from instance
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thumbmanager = get_thumbnailer(instance.filename)
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thumbmanager.delete(save=False)
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@receiver(models.signals.pre_save, sender=PlaceImage)
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def auto_delete_file_on_change(sender, instance, **kwargs):
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"""
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Deletes old file from filesystem
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when corresponding `PlaceImage` object is updated
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with new file.
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"""
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if not instance.pk:
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return False
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try:
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old_file = PlaceImage.objects.get(pk=instance.pk).filename
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except PlaceImage.DoesNotExist:
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return False
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# No need to delete thumbnails, as they will be overwritten on regeneration.
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new_file = instance.filename
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if not old_file == new_file:
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if os.path.isfile(old_file.path):
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os.remove(old_file.path)
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class ExternalLink(models.Model):
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url = models.URLField(max_length=200)
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label = models.CharField(max_length=100)
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submitted_by = models.ForeignKey(
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Explorer,
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on_delete=models.SET_NULL,
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null=True,
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blank=True,
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related_name='external_links'
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)
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submitted_when = models.DateTimeField(auto_now_add=True, null=True)
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class PhotoAlbum(ExternalLink):
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place = models.ForeignKey(
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Place,
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on_delete=models.CASCADE,
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related_name='photo_albums',
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null=True
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)
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4
django_lostplaces/lostplaces/models/__init__.py
Normal file
4
django_lostplaces/lostplaces/models/__init__.py
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from lostplaces.models.abstract_models import *
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from lostplaces.models.place import *
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from lostplaces.models.external_links import *
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from lostplaces.models.models import *
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61
django_lostplaces/lostplaces/models/abstract_models.py
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61
django_lostplaces/lostplaces/models/abstract_models.py
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from django.db import models
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from django.core.validators import MaxValueValidator, MinValueValidator
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from taggit.managers import TaggableManager
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class Taggable(models.Model):
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'''
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This abstract model represtens an object that is taggalble
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using django-taggit
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'''
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class Meta:
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abstract = True
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tags = TaggableManager(blank=True)
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class Mapable(models.Model):
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'''
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This abstract model class represents an object that can be
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displayed on a map.
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'''
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class Meta:
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abstract = True
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name = models.CharField(max_length=50)
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latitude = models.FloatField(
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validators=[
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MinValueValidator(-90),
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MaxValueValidator(90)
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]
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)
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longitude = models.FloatField(
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validators=[
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MinValueValidator(-180),
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MaxValueValidator(180)
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]
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)
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class Submittable(models.Model):
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'''
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This abstract model class represents an object that can be submitted by
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an explorer.
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'''
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class Meta:
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abstract = True
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submitted_when = models.DateTimeField(auto_now_add=True, null=True)
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submitted_by = models.ForeignKey(
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'Explorer',
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on_delete=models.SET_NULL,
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null=True,
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blank=True,
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related_name='%(class)ss'
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)
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class Expireable(models.Model):
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"""
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Base class for things that can expire, i.e. VouchersAv
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"""
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created_when = models.DateTimeField(auto_now_add=True)
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expires_when = models.DateTimeField()
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14
django_lostplaces/lostplaces/models/external_links.py
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14
django_lostplaces/lostplaces/models/external_links.py
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from django.db import models
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from lostplaces.models.place import PlaceAsset
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class ExternalLink(PlaceAsset):
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class Meta:
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abstract = True
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url = models.URLField(max_length=200)
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label = models.CharField(max_length=100)
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class PhotoAlbum(ExternalLink):
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pass
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55
django_lostplaces/lostplaces/models/models.py
Normal file
55
django_lostplaces/lostplaces/models/models.py
Normal file
@ -0,0 +1,55 @@
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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'''
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|
(Data)models which describe the structure of data to be saved into
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database.
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'''
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import uuid
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|
from django.db import models
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|
from django.contrib.auth.models import User
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from django.db.models.signals import post_save
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from django.dispatch import receiver
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from lostplaces.models.abstract_models import Expireable
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class Explorer(models.Model):
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"""
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|
Profile that is linked to the a User.
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|
Every user has a profile.
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|
"""
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|
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|
user = models.OneToOneField(
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User,
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|
on_delete=models.CASCADE,
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|
related_name='explorer'
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|
)
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|
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|
def __str__(self):
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|
return self.user.username
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|
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|
@receiver(post_save, sender=User)
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|
def create_user_profile(sender, instance, created, **kwargs):
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|
if created:
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|
Explorer.objects.create(user=instance)
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|
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|
@receiver(post_save, sender=User)
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|
def save_user_profile(sender, instance, **kwargs):
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|
instance.explorer.save()
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|
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class Voucher(Expireable):
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|
"""
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|
Vouchers are authorization to created_when = models.DateTimeField(auto_now_add=True)
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|
expires_when = models.DateTimeField()kens to allow the registration of new users.
|
||||||
|
A voucher has a code, a creation and a deletion date, which are all
|
||||||
|
positional. Creation date is being set automatically during voucher
|
||||||
|
creation.
|
||||||
|
"""
|
||||||
|
|
||||||
|
code = models.CharField(unique=True, max_length=30)
|
||||||
|
|
||||||
|
def __str__(self):
|
||||||
|
return "Voucher " + str(self.code)
|
||||||
|
|
129
django_lostplaces/lostplaces/models/place.py
Normal file
129
django_lostplaces/lostplaces/models/place.py
Normal file
@ -0,0 +1,129 @@
|
|||||||
|
import os
|
||||||
|
|
||||||
|
from django.db import models
|
||||||
|
from django.urls import reverse
|
||||||
|
from django.dispatch import receiver
|
||||||
|
from django.db.models.signals import post_delete, pre_save
|
||||||
|
|
||||||
|
from lostplaces.models.abstract_models import Submittable, Taggable, Mapable
|
||||||
|
|
||||||
|
from easy_thumbnails.fields import ThumbnailerImageField
|
||||||
|
from easy_thumbnails.files import get_thumbnailer
|
||||||
|
|
||||||
|
class Place(Submittable, Taggable, Mapable):
|
||||||
|
"""
|
||||||
|
Place defines a lost place (location, name, description etc.).
|
||||||
|
"""
|
||||||
|
|
||||||
|
location = models.CharField(max_length=50)
|
||||||
|
description = models.TextField()
|
||||||
|
|
||||||
|
def get_absolute_url(self):
|
||||||
|
return reverse('place_detail', kwargs={'pk': self.pk})
|
||||||
|
|
||||||
|
|
||||||
|
@classmethod
|
||||||
|
# Get center position of LP-geocoordinates.
|
||||||
|
def average_latlon(cls, place_list):
|
||||||
|
amount = len(place_list)
|
||||||
|
# Init fill values to prevent None
|
||||||
|
longitude = 0
|
||||||
|
latitude = 0
|
||||||
|
|
||||||
|
if amount > 0:
|
||||||
|
for place in place_list:
|
||||||
|
longitude += place.longitude
|
||||||
|
latitude += place.latitude
|
||||||
|
return {'latitude':latitude / amount, 'longitude': longitude / amount}
|
||||||
|
|
||||||
|
return {'latitude': latitude, 'longitude': longitude}
|
||||||
|
|
||||||
|
def __str__(self):
|
||||||
|
return self.name
|
||||||
|
|
||||||
|
|
||||||
|
def generate_image_upload_path(instance, filename):
|
||||||
|
"""
|
||||||
|
Callback for generating path for uploaded images.
|
||||||
|
Returns filename as: place_pk-placename{-rnd_string}.jpg
|
||||||
|
"""
|
||||||
|
|
||||||
|
return 'places/' + str(instance.place.pk) + '-' + str(instance.place.name) + '.' + filename.split('.')[-1]
|
||||||
|
|
||||||
|
class PlaceAsset(Submittable):
|
||||||
|
"""
|
||||||
|
Assets to a place, i.e. images
|
||||||
|
"""
|
||||||
|
|
||||||
|
class Meta:
|
||||||
|
abstract = True
|
||||||
|
|
||||||
|
place = models.ForeignKey(
|
||||||
|
Place,
|
||||||
|
on_delete=models.CASCADE,
|
||||||
|
related_name='%(class)ss',
|
||||||
|
null=True
|
||||||
|
)
|
||||||
|
|
||||||
|
class PlaceImage (Submittable):
|
||||||
|
"""
|
||||||
|
PlaceImage defines an image file object that points to a file in uploads/.
|
||||||
|
Intermediate image sizes are generated as defined in THUMBNAIL_ALIASES.
|
||||||
|
PlaceImage references a Place to which it belongs.
|
||||||
|
"""
|
||||||
|
|
||||||
|
description = models.TextField(blank=True)
|
||||||
|
filename = ThumbnailerImageField(
|
||||||
|
upload_to=generate_image_upload_path,
|
||||||
|
resize_source=dict(size=(2560, 2560),
|
||||||
|
sharpen=True)
|
||||||
|
)
|
||||||
|
place = models.ForeignKey(
|
||||||
|
Place,
|
||||||
|
on_delete=models.CASCADE,
|
||||||
|
related_name='placeimages'
|
||||||
|
)
|
||||||
|
|
||||||
|
def __str__(self):
|
||||||
|
"""
|
||||||
|
Returning the name of the corresponding place + id
|
||||||
|
of this image as textual representation of this instance
|
||||||
|
"""
|
||||||
|
|
||||||
|
return 'Image ' + str(self.pk)
|
||||||
|
|
||||||
|
|
||||||
|
# These two auto-delete files from filesystem when they are unneeded:
|
||||||
|
|
||||||
|
@receiver(post_delete, sender=PlaceImage)
|
||||||
|
def auto_delete_file_on_delete(sender, instance, **kwargs):
|
||||||
|
"""
|
||||||
|
Deletes file (including thumbnails) from filesystem
|
||||||
|
when corresponding `PlaceImage` object is deleted.
|
||||||
|
"""
|
||||||
|
if instance.filename:
|
||||||
|
# Get and delete all files and thumbnails from instance
|
||||||
|
thumbmanager = get_thumbnailer(instance.filename)
|
||||||
|
thumbmanager.delete(save=False)
|
||||||
|
|
||||||
|
|
||||||
|
@receiver(pre_save, sender=PlaceImage)
|
||||||
|
def auto_delete_file_on_change(sender, instance, **kwargs):
|
||||||
|
"""
|
||||||
|
Deletes old file from filesystem
|
||||||
|
when corresponding `PlaceImage` object is updated
|
||||||
|
with new file.
|
||||||
|
"""
|
||||||
|
if not instance.pk:
|
||||||
|
return False
|
||||||
|
|
||||||
|
try:
|
||||||
|
old_file = PlaceImage.objects.get(pk=instance.pk).filename
|
||||||
|
except PlaceImage.DoesNotExist:
|
||||||
|
return False
|
||||||
|
|
||||||
|
# No need to delete thumbnails, as they will be overwritten on regeneration.
|
||||||
|
new_file = instance.filename
|
||||||
|
if not old_file == new_file:
|
||||||
|
if os.path.isfile(old_file.path):
|
||||||
|
os.remove(old_file.path)
|
@ -57,7 +57,7 @@
|
|||||||
<h1 class="LP-Headline">Photo albums</h1>
|
<h1 class="LP-Headline">Photo albums</h1>
|
||||||
<div class="LP-LinkList">
|
<div class="LP-LinkList">
|
||||||
<ul class="LP-LinkList__Container">
|
<ul class="LP-LinkList__Container">
|
||||||
{% for photo_album in place.photo_albums.all %}
|
{% for photo_album in place.photoalbums.all %}
|
||||||
<li class="LP-LinkList__Item">
|
<li class="LP-LinkList__Item">
|
||||||
<a target="_blank" href="{{photo_album.url}}" class="LP-Link">
|
<a target="_blank" href="{{photo_album.url}}" class="LP-Link">
|
||||||
<span class="LP-Text">{{photo_album.label}}</span>
|
<span class="LP-Text">{{photo_album.label}}</span>
|
||||||
|
@ -8,7 +8,9 @@ from django.contrib.auth.models import User
|
|||||||
from lostplaces.models import (
|
from lostplaces.models import (
|
||||||
Taggable,
|
Taggable,
|
||||||
Mapable,
|
Mapable,
|
||||||
Submittable
|
Submittable,
|
||||||
|
PlaceAsset,
|
||||||
|
Expireable
|
||||||
)
|
)
|
||||||
from lostplaces.tests.models import ModelTestCase
|
from lostplaces.tests.models import ModelTestCase
|
||||||
|
|
||||||
@ -65,8 +67,8 @@ class SubmittableTestCase(ModelTestCase):
|
|||||||
)
|
)
|
||||||
self.assertEqual(
|
self.assertEqual(
|
||||||
submitted_by.remote_field.related_name,
|
submitted_by.remote_field.related_name,
|
||||||
'%(class)s',
|
'%(class)ss',
|
||||||
msg='Expecting the related_name of %s to be \'%%(class)s\', got %s' % (
|
msg='Expecting the related_name of %s to be \'%%(class)ss\', got %s' % (
|
||||||
str(submitted_by),
|
str(submitted_by),
|
||||||
submitted_by.remote_field.related_name
|
submitted_by.remote_field.related_name
|
||||||
)
|
)
|
||||||
@ -91,3 +93,23 @@ class SubmittableTestCase(ModelTestCase):
|
|||||||
)
|
)
|
||||||
)
|
)
|
||||||
|
|
||||||
|
class PlaceAssetTestCase(ModelTestCase):
|
||||||
|
model = PlaceAsset
|
||||||
|
|
||||||
|
def test_place(self):
|
||||||
|
field = self.assertField('place', models.ForeignKey)
|
||||||
|
self.assertEqual(field.remote_field.on_delete, models.CASCADE,
|
||||||
|
msg='Expecting the deletion of %s to be cascading' % (
|
||||||
|
str(field)
|
||||||
|
)
|
||||||
|
)
|
||||||
|
expected_related_name = '%(class)ss'
|
||||||
|
self.assertEqual(field.remote_field.related_name, expected_related_name,
|
||||||
|
msg='Expecting the related name of %s to be %s' % (
|
||||||
|
str(field),
|
||||||
|
expected_related_name
|
||||||
|
)
|
||||||
|
)
|
||||||
|
|
||||||
|
class ExpireableTestCase(ModelTestCase):
|
||||||
|
model = Expireable
|
@ -69,7 +69,7 @@ class PhotoAlbumTestCase(ModelTestCase):
|
|||||||
str(field)
|
str(field)
|
||||||
)
|
)
|
||||||
)
|
)
|
||||||
expected_related_name = 'photo_albums'
|
expected_related_name = 'photoalbums'
|
||||||
self.assertEqual(field.remote_field.related_name, expected_related_name,
|
self.assertEqual(field.remote_field.related_name, expected_related_name,
|
||||||
msg='Expecting the related name of %s to be %s' % (
|
msg='Expecting the related name of %s to be %s' % (
|
||||||
str(field),
|
str(field),
|
||||||
|
Loading…
Reference in New Issue
Block a user