blog

from django.db import models

import datetime

import os

def post_title_directory(instance, filename):

    """ Files will be uploaded to MEDIA_ROOT/blog/<year of publishing>/<blog

    title>

    The blog title is determined by the text before the first period (".") in

    the filename. So if the file has the name "Trains are bæ.en.md", the file

    will be stored in "blog/<this year>/Trains are bæ". Name your files

    properly!

    It should also be noted that all files are stored in the same folder if they

    belong to the same blogpost, regardless of language. The titles that are

    displayed to the user however, should be the titles of the files themselves,

    which should be in the native language. So if a blog post is titled

    "Universities of Belgium", its Dutch counterpart should be titled

    "Universiteiten van België", so the correct title can be derived from the

    filename.

    Recommended way to name the uploaded file: "<name of blog post in language

    it's written>.md". This removes the maximum amount of redundancy (e.g. the

    language of the file can be derived from the title, no ".fr.md" or something

    like that necessary), and can directly be used for the end user (the title

    is what should be displayed).

    """

    english_file_name = os.path.basename(instance.file_en.name) # TODO: Test if this returns the file name!

    english_title = english_file_name.partition(".")[0] 

    year = datetime.date.today().year

    return "blog/{0}/{1}".format(year, english_title)

class Post(models.Model):

    """ Represents a blog post. The title of the blog post is determnined by the name

    of the files.

    A blog post can be in 5 different languages: German, Spanish, English, French,

    and Dutch. For all these languages, a seperate field exists. Thus, a

    translated blog post has a seperate file for each translation, and is

    seperated from Django's internationalization/localization system.

    Only the English field is mandatory. The others may contain a value if a

    translated version exists, which will be displayed accordingly.

    """

    published = models.DateTimeField(auto_now_add=True)

    file_de = models.FileField(upload_to=post_title_directory, unique=True, blank=True)

    file_es = models.FileField(upload_to=post_title_directory, unique=True, blank=True)

    file_en = models.FileField(upload_to=post_title_directory, unique=True, blank=False)

    file_fr = models.FileField(upload_to=post_title_directory, unique=True, blank=True)

    file_nl = models.FileField(upload_to=post_title_directory, unique=True, blank=True)

    # Please note that there's no need to create any indexes, because unique

    # fields constitute an index already.

    def __str__(self):

        return os.path.basename(self.file_en.name).partition(".")[0]