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Fix bug in models.py and work on translations in views.py

Author: Maarten 'Vngngdn' Vangeneugden
Date: July 10, 2017, 2:36 p.m.
Hash: 7dc40e1090171aa1afca0c8a35e0df77f3267f10
Parent: 1957abb2ef5154f3fa0096f5079c6ea8a4d246e7
Modified files: models.py; views.py

models.py ¶

1 addition and 1 deletion.

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from django.db import models

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 = instance.file_en.name # TODO: Test if this returns the file name!
    english_title = english_file_name.partition(".")[0] 

    return "blog/%Y/{0}".format(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__():
        return self.file_en.name.partition(".")[0]
        return self.file_en.name.partition(".")[0]


views.py ¶

42 additions and 29 deletions.

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from django.shortcuts import get_object_or_404, render # This allows to render the template with the view here. It's pretty cool and important.
from django.http import HttpResponseRedirect, HttpResponse
from django.core.urlresolvers import reverse # Why?
from django.template import loader # This allows to actually load the template.
from django.contrib.auth.decorators import login_required
from django.contrib.auth import authenticate, login
from .models import Post
from django.core.exceptions import ObjectDoesNotExist
from markdown import markdown

# Common data:
footer_links = [
    ["Home", "/"],
    ]


# FIXME: Remove this template trash. THIS IS A VIEW, NOT A FUCKING TEMPLATE FFS
context = {
    'materialDesign_color': "green",
    'materialDesign_accentColor': "purple",
    'navbar_title': "Blog",
    'navbar_fixed': True,
    'navbar_backArrow': True,
    #'footer_title': "Maarten's blog",
    #'footer_description': "My personal scribbly notepad.",
    'footer_links': footer_links,
    }

def get_preferred_language(
        request,
        possible_locales = {'de','en','es','fr','nl'},
        default = 'en'):
    """ Returns the best language that can be offered to the user.
    An HTTP request header contains an Accept-Language field, in which the user
    lists his requested languages, in descending order for preferability. This
    function will read this field, and return a locale that can be offered by
    the website (possible_locales). If nothing suitable can be offered, the
    default is returned (English).
    """
    accepted_languages = request.META.HTTP_ACCEPT_LANGUAGE
    accepted_languages = accepted_languages.split(",")
    for accepted_language in accepted_languages:
        for possible_locale in possible_locales:
            if accepted_language.lower().startswith(possible_locale):
                return possible_locale
    return default  # No possible locale found, so return the default.

    """ Returns the language codes for which a blog post exists. This function
    always returns English (because that field mustn't be empty).
    So say a blog post has an English, Dutch and French version (which means
    file_en, file_fr and file_nl aren't empty), the function will return {"en",
    "fr", "nl"}. """
    available_languages = {"en"}
    if post.file_de is not none:
        available_languages.add("de")
    if post.file_es is not None:
        available_languages.add("es")
    if post.file_fr is not None:
        available_languages.add("fr")
    if post.file_nl is not None:
        available_languages.add("nl")
    return available_languages

def get_preferred_post_language(post, language):
    """ Returns the post language file that best suits the given language. This
    is handy if you know what language the user prefers, but aren't sure whether
    you can provide that language. This function will try to provide the file
    for that language, or return English if that's not possible. """
    if language == "de" and post.file_de is not None:
        return post.file_de
    if language == "es" and post.file_es is not None:
        return post.file_es
    if language == "fr" and post.file_fr is not None:
        return post.file_fr
    if language == "nl" and post.file_nl is not None:
        return post.file_nl
    return post.file_en  # Returned if all other choices wouldn't be satisfactory, or the requested language is English.
    

def index(request):
    template = "blog/index.html"
    posts = Post.objects.all()


    post_links = []
    for post in posts:
        title = str(post)
        date = post.published
        title = blog_file.file_name
        date = post.published
        # TODO: The link can possibly be reversed in the DTL, which is actually
        # a cleaner way to do it. Investigate.
        # a cleaner way to do it. Investigate.
        link = reverse("blog-post", args=[title])
        post_links.append([title, date, description, link])
        post_links.append([title, date, description, link])

    context = {
            'post_links': post_links,
            }
    return render(request, template, context)

def post(request, title):
    template = "blog/post.html"
    posts = Post.objects.get(file_en=title)
    blog_text = markdown(text_file)

    blog_file = get_preferred_post_language(post, language)
    blog_text = markdown(blog_file)

    context = {
        'article': blog_text,
        }
        }
    return render(request, template, context)

    


1	1	from django.db import models
2	2
3	3	def post_title_directory(instance, filename):
4	4	""" Files will be uploaded to MEDIA_ROOT/blog/<year of publishing>/<blog
5	5	title>
6	6	The blog title is determined by the text before the first period (".") in
7	7	the filename. So if the file has the name "Trains are bæ.en.md", the file
8	8	will be stored in "blog/<this year>/Trains are bæ". Name your files
9	9	properly!
10	10	It should also be noted that all files are stored in the same folder if they
11	11	belong to the same blogpost, regardless of language. The titles that are
12	12	displayed to the user however, should be the titles of the files themselves,
13	13	which should be in the native language. So if a blog post is titled
14	14	"Universities of Belgium", its Dutch counterpart should be titled
15	15	"Universiteiten van België", so the correct title can be derived from the
16	16	filename.
17	17
18	18	Recommended way to name the uploaded file: "<name of blog post in language
19	19	it's written>.md". This removes the maximum amount of redundancy (e.g. the
20	20	language of the file can be derived from the title, no ".fr.md" or something
21	21	like that necessary), and can directly be used for the end user (the title
22	22	is what should be displayed).
23	23	"""
24	24	english_file_name = instance.file_en.name # TODO: Test if this returns the file name!
25	25	english_title = english_file_name.partition(".")[0]
26	26
27	27	return "blog/%Y/{0}".format(english_title)
28	28
29	29	class Post(models.Model):
30	30	""" Represents a blog post. The title of the blog post is determnined by the name
31	31	of the files.
32	32	A blog post can be in 5 different languages: German, Spanish, English, French,
33	33	and Dutch. For all these languages, a seperate field exists. Thus, a
34	34	translated blog post has a seperate file for each translation, and is
35	35	seperated from Django's internationalization/localization system.
36	36	Only the English field is mandatory. The others may contain a value if a
37	37	translated version exists, which will be displayed accordingly.
38	38	"""
39	39	published = models.DateTimeField(auto_now_add=True)
40	40	file_de = models.FileField(upload_to=post_title_directory, unique=True, blank=True)
41	41	file_es = models.FileField(upload_to=post_title_directory, unique=True, blank=True)
42	42	file_en = models.FileField(upload_to=post_title_directory, unique=True, blank=False)
43	43	file_fr = models.FileField(upload_to=post_title_directory, unique=True, blank=True)
44	44	file_nl = models.FileField(upload_to=post_title_directory, unique=True, blank=True)
45	45	# Please note that there's no need to create any indexes, because unique
46	46	# fields constitute an index already.
47	47
48	48	def __str__():
49	-	return self.file_en.name.partition(".")[0]
+	49	return self.file_en.name.partition(".")[0]
50	50

1	1
2	2	from django.shortcuts import get_object_or_404, render # This allows to render the template with the view here. It's pretty cool and important.
3	3	from django.http import HttpResponseRedirect, HttpResponse
4	4	from django.core.urlresolvers import reverse # Why?
5	5	from django.template import loader # This allows to actually load the template.
6	6	from django.contrib.auth.decorators import login_required
7	7	from django.contrib.auth import authenticate, login
8	8	from .models import Post
9	9	from django.core.exceptions import ObjectDoesNotExist
10	10	from markdown import markdown
11	11
12	-	# Common data:
13	-	footer_links = [
14	-	["Home", "/"],
15	-	]
16	-
+	12
17	13	# FIXME: Remove this template trash. THIS IS A VIEW, NOT A FUCKING TEMPLATE FFS
18	14	context = {
19	15	'materialDesign_color': "green",
20	16	'materialDesign_accentColor': "purple",
21	17	'navbar_title': "Blog",
22	18	'navbar_fixed': True,
23	19	'navbar_backArrow': True,
24	20	#'footer_title': "Maarten's blog",
25	21	#'footer_description': "My personal scribbly notepad.",
26	22	'footer_links': footer_links,
27	23	}
28	24
29	25	def get_preferred_language(
30	-	request,
31	-	possible_locales = {'de','en','es','fr','nl'},
32	-	default = 'en'):
33	-	""" Returns the best language that can be offered to the user.
34	-	An HTTP request header contains an Accept-Language field, in which the user
35	-	lists his requested languages, in descending order for preferability. This
36	-	function will read this field, and return a locale that can be offered by
37	-	the website (possible_locales). If nothing suitable can be offered, the
38	-	default is returned (English).
39	-	"""
40	-	accepted_languages = request.META.HTTP_ACCEPT_LANGUAGE
41	-	accepted_languages = accepted_languages.split(",")
42	-	for accepted_language in accepted_languages:
43	-	for possible_locale in possible_locales:
44	-	if accepted_language.lower().startswith(possible_locale):
45	-	return possible_locale
46	-	return default # No possible locale found, so return the default.
47	-
+	26	""" Returns the language codes for which a blog post exists. This function
+	27	always returns English (because that field mustn't be empty).
+	28	So say a blog post has an English, Dutch and French version (which means
+	29	file_en, file_fr and file_nl aren't empty), the function will return {"en",
+	30	"fr", "nl"}. """
+	31	available_languages = {"en"}
+	32	if post.file_de is not none:
+	33	available_languages.add("de")
+	34	if post.file_es is not None:
+	35	available_languages.add("es")
+	36	if post.file_fr is not None:
+	37	available_languages.add("fr")
+	38	if post.file_nl is not None:
+	39	available_languages.add("nl")
+	40	return available_languages
+	41
+	42	def get_preferred_post_language(post, language):
+	43	""" Returns the post language file that best suits the given language. This
+	44	is handy if you know what language the user prefers, but aren't sure whether
+	45	you can provide that language. This function will try to provide the file
+	46	for that language, or return English if that's not possible. """
+	47	if language == "de" and post.file_de is not None:
+	48	return post.file_de
+	49	if language == "es" and post.file_es is not None:
+	50	return post.file_es
+	51	if language == "fr" and post.file_fr is not None:
+	52	return post.file_fr
+	53	if language == "nl" and post.file_nl is not None:
+	54	return post.file_nl
+	55	return post.file_en # Returned if all other choices wouldn't be satisfactory, or the requested language is English.
+	56
+	57
48	58	def index(request):
49	59	template = "blog/index.html"
50	60	posts = Post.objects.all()
51	61
+	62
52	63	post_links = []
53	64	for post in posts:
54	65	title = str(post)
55	-	date = post.published
+	66	title = blog_file.file_name
+	67	date = post.published
56	68	# TODO: The link can possibly be reversed in the DTL, which is actually
57	-	# a cleaner way to do it. Investigate.
+	69	# a cleaner way to do it. Investigate.
58	70	link = reverse("blog-post", args=[title])
59	-	post_links.append([title, date, description, link])
+	71	post_links.append([title, date, description, link])
60	72
61	73	context = {
62	74	'post_links': post_links,
63	75	}
64	76	return render(request, template, context)
65	77
66	78	def post(request, title):
67	79	template = "blog/post.html"
68	80	posts = Post.objects.get(file_en=title)
69	81	blog_text = markdown(text_file)
70	-
+	82	blog_file = get_preferred_post_language(post, language)
+	83	blog_text = markdown(blog_file)
+	84
71	85	context = {
72	86	'article': blog_text,
73	87	}
+	88	}
74	89	return render(request, template, context)
75	90
76	-
77	-