kandi X-RAY | blog Summary
kandi X-RAY | blog Summary
markdown content of garyelephant’s blog.markdown syntax is tested in [StackEdit] Contents --- * [Waterdrop帮你快速玩转Spark数据处理] ./waterdrop-release.md) 2018-02-16 * [(超实用)大数据技术面试关键点整理] ./notes/bigdata_stack.md) 2017-08-30 * [每秒百万级流式日志处理架构的开发运维调优笔记] ) 2017-08-01 * [python coding style guide 的快速落地实践] ./python_coding_style_guide_practice.md) 2016-01-02 * [为什么容器技术将主宰世界] ./container_will_rule_the_world.md) 2015-11-04 * [Better ELK,新浪实时日志分析服务进化] ./better_elk_in_sina.md) 2015-08-11 * [Tutorial: 使用rsyslog向kafka, elasticsearch推送日志] ./power_rsyslog_with_kafka_es.md) * [Elasticsearch 2015.01简报] ./elasticsearch_brief.2015.01.md) * [Elasticsearch 2014.12简报] ./elasticsearch_brief.2014.12.md) * [Elasticsearch 2014.11简报] ./elasticsearch_brief.2014.11.md) * [Elasticsearch 2014.10简报] ./elasticsearch_brief.2014.10.md) * [读过几百份简历后，我对求职和写简历的新感悟] ./new_thoughts_of_career_and_resume.md).
Top functions reviewed by kandi - BETA
blog Key Features
blog Examples and Code Snippets
def index(count, page): """ Serves the page with a list of blog posts :param count: :param offset: :return: """ blogging_engine = _get_blogging_engine(current_app) storage = blogging_engine.storage config = bloggi
def export_posts(user_id): try: user = User.query.get(user_id) _set_task_progress(0) data =  i = 0 total_posts = user.posts.count() for post in user.posts.order_by(Post.timestamp.asc()):
def blog_detail(request, pk): post = Post.objects.get(pk=pk) comments = Comment.objects.filter(post=post) form = CommentForm() if request.method == "POST": form = CommentForm(request.POST) if form.is_valid():
Trending Discussions on blog
I'm a student learning about database design and currently learning about the relationships of - one-to-one, one-to-many, many-to-many. I understand the concept well enough, but feel like I'm lacking experience/information on how it would be implemented in a real production scenario.
My question is this
If I have a blog website with a Blog Post as an entity and comments for each blog post, how would you handle the comments in the database?`
Would you use a one-to-many relationship and just store all the comments in a single table. Then link those comments to each blog post and user who created it?
What if each comment had a sub-comment? Would you create a separate table for sub-comments and link it to a single comment? Would that cause too much overhead and confusion within the DB itself?
I get the concepts and all, but don't understand best practices for handling what seems like basic stuff.
Thanks in advance!...
ANSWERAnswered 2021-Jun-15 at 16:06
The simplest solution is to stick with a one-to-many relationship. Use one table and store one comment per row, with references to the post and the comment author, and a timestamp so you can sort the comments chronologically.
You seem uncertain about whether you need a "threaded comment" hierarchy. This is more complex, so if you don't need it, don't bother.
If you do need to show comment threads, then you should learn about running recursive queries in MySQL 8.0: https://dev.mysql.com/doc/refman/8.0/en/with.html#common-table-expressions-recursive
You still only need one table. Don't create a second table for sub-comments. Just store comments like in your one-to-many example, but each comment may link to its "parent" comment when it is a reply.
Another solution that many sites use is to skip implementing their own comment system, and just embed a comment service like Disqus. That's likely to be much more reliable and safe than yours. But if you're doing this as a learning exercise, that's worthwhile too.
I am writing a program in python to have a user input multiple websites then request and scrape those websites for their titles and output it. However, when the program surpasses 8 websites the program crashes every time. I am not sure if it is a memory problem, but I have been looking all over and can't find any one who has had the same problem. The code is below (I added 9 lists so all you have to do is copy and paste the code to see the issue)....
ANSWERAnswered 2021-Jun-15 at 19:45
To avoid the page from crashing, add the
user-agent header to the
headers= parameter in
requests.get(), otherwise, the page thinks that your a bot and will block you.
I have events which is pulled from redux, and if the
events array contains data, then
updateData will be used to filter events into the state var
events both added to the dependency array as talked about here. but I'm still getting this error:
ANSWERAnswered 2021-Jun-15 at 18:54
Because you are executing useEffect callback whenever data changes and you are changing data in useEffect callback.
Remove data as dependency.
Use this code to fix it
ANSWERAnswered 2021-Jun-11 at 00:14
My advice would be: don't try this in a playground. Playgrounds aren't ready for this stuff yet. Your code compiles and runs fine in a real project. Here's an example:
I want to use firebase auth for my android and ios applications with custom backend. So I need some way of authentication for api calls from mobile apps to the backend.
I was able to find following guide in firebase documentation which suggests to sent firebase id token to my backend and validate it there with firebase Admin SDK. https://firebase.google.com/docs/auth/admin/verify-id-tokens
But this approach does not seem to be a security best practice. For example here https://auth0.com/blog/why-should-use-accesstokens-to-secure-an-api/ it is said that for API access one should use access tokens rather than id tokens.
Are there any good pattern for using firebase auth with my backend?...
ANSWERAnswered 2021-Jun-15 at 15:02
Firebase itself passes the ID token with each request, and then uses that on the server to identify the user and to determine whether they're authorized to perform the operation. This is a common (I'd even say idiomatic) approach to authentication and authorization, and if there's a security risk that you've identified in it, we'd love to hear about it on https://www.google.com/about/appsecurity/
From reading the blog post it seems the author is making a distinction between authentication (the user proving their identify) and authorization (them getting access to certain resources based on that identity), but it'd probably be best to ask the author for more information on why that would preclude passing an ID token to identify the user.
I am a beginner learning the Django RestFramework. I had created this for an blog post page for my project. I looked through different tutorials and posts but couldn't really figure out. Can you help me converting this functional view into a class view? Thanks...
ANSWERAnswered 2021-Jun-15 at 14:30
from rest_framework import generics class PostList(generics.ListCreateAPIView): queryset = Post.objects.all() serializer_class = PostSerializer class PostDetail(generics.RetrieveUpdateDestroyAPIView): queryset = Post.objects.all() serializer_class = PostSerializer
I have a table with posts that can have multiple categories, and a table with categories that can have multiple posts. models.py:...
ANSWERAnswered 2021-Jun-15 at 11:16
This might help you:
I have a
sidebar component in my nextjs app.
In my index component I'm using
useState to show and hide sidebar on mobile device.
It works perfectly fine but I want to add animation when user clicks on hamburger menu, the sidebar should be animated left to right and when clicked on close icon it should go back to right to left. FYI I am using tailwind css.
Here's the code:
ANSWERAnswered 2021-Jun-15 at 06:24
Can you try this?
ANSWERAnswered 2021-Jun-15 at 04:11
In the base.html, you've named the block "content". In index.html, you've called it "contend".
It would be nice if Django threw an error when this sort of thing happens - but I think the main reason it doesn't is for adaptability. At a glance it seem you're doing everything else correctly though.
I am trying to follow this tutorial here - https://juliasilge.com/blog/xgboost-tune-volleyball/
I am using it on the most recent Tidy Tuesday dataset about great lakes fishing - trying to predict agency based on many other values.
ALL of the code below works except the final row where I get the following error:...
ANSWERAnswered 2021-Jun-15 at 04:08
If we look at the documentation of last_fit() We see that
split must be
An rsplit object created from `rsample::initial_split().
You accidentally passed the cross-validation folds object
split but you should have passed
No vulnerabilities reported
You can use blog like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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