!warn 553258638441971742 I've deleted your post; this is not a job board.
#web-development
bleak olive
lavish prismBOT
:incoming_envelope: :ok_hand: applied warning to @plucky siren.
lusty shoal
@lavish prism
harsh stump
https://github.com/shipagents/FastAPI-FullStack-Template
can you please review my repo guys?
please star if you like
prisma dawn
hello
deep cave
hiya!
prisma dawn
umm.. I'm coming form DRF background.
Building API with flask, should I use the plugin?
prisma dawn
Flask restful
deep cave
well if you've never used flask perhaps you should familiarize yourself with it first
but yeah flask restful might be a good analogue to DRF
prisma dawn
I've used flask for side project
native tide
prisma dawn
I'm just thinking of going barebone flask for building API.
Just asking second opinion though
deep cave
I usually build my APIs in barebone flask,
I've never had any compelling reasons not to.
I guess my advice would be to see if you can come up with a compelling reason to use more than just barebones flask, and if you can't, why bother?
don't use an extension just to use it, use it because you need a feature.
prisma dawn
have u tried sanic
prisma dawn
prisma dawn
yea. it support async out of the box
deep cave
right. yeah if you need async you might wanna look into some other frameworks.
I know @brave mantle loooves aiohttp
might be worth a look
brave mantle
Well it's all I had experience with
I tried kyoukai but it requires asphalt up the butt and at that point it's no longer a small framework
Never seen sanic
But my routes use route classes, not decorators, and aiohttp supports that
deep cave
but the decorators are so pretty
brave mantle
Function is more important
deep cave
I'm a romantic when it comes to programming :D
brave mantle
Haha
kind steppe
@prisma dawn for api's I don't use any module
I find it a lot easier just to use @app.route
And then add custom caching methods using decorators
grand badge
Anyone use flask?
brave mantle
I've seen a few people using it
grand badge
?
brave mantle
Treehouse
grand badge
Treehouse actually helped me
native tide
brave mantle
Treehouse is well known for being kinda bunk
grand badge
Bunk?
brave mantle
the best way I can put it is that their courses are broken
they're mostly fine but they all seem to have small problems that add up
grand badge
True
brave mantle
(they're also really expensive)
grand badge
Its cheap (for me at least)
brave mantle
I prefer more modern stuff, but that's me
grand badge
Hey wats up, and yes, flask all the way!
brave mantle
aiohttp and friends
grand badge
Btw, is flask a framework that employers look for?
brave mantle
python is very much moving towards asyncio
frameworks that refuse to support it will be left in the dust eventually
but I'm sure flask will at some point
grand badge
I wanna learn django later on
grand badge
True
brave mantle
it's worth noting that django is completely different and really requires you to do things "the django way"
grand badge
Very true
brave mantle
if you're doing django properly then you even have it generate the project structure for you
kind steppe
Discord use Flask
grand badge
Nice
kind steppe
Discord API is mainly Python
grand badge
Ik
brave mantle
that could prove to be a bad move on Discord's part
kind steppe
You can even see Andrei using it in a dumb tweet lmao
grand badge
I semi agree with gdude
brave mantle
Nah, that's not what I mean
kind steppe
i like flask so I'll stay with flask
grand badge
Yeah
kind steppe
you keep making me feel stupid mister gdude :<
grand badge
Dont worry joseph, gdude has a profile pic of a pony ๐
brave mantle
not the first time I've heard either of those things
grand badge
Snd i have nothing
kind steppe
py!debug discord.utils.get(guild.members, name="Hasan Ahmad").avatar_url
native tide
kind steppe
grand badge
Sorry gdude if i offend i, need to keep joseph motivated
brave mantle
it's the source code of google's swiffy tool
which doesn't exist anymore
it used to convert flash SWFs to HTML5
kind steppe
oh that sounds useful
grand badge
I really need to learn js
brave mantle
flash has been deprecated for years now
kind steppe
flash is F U N
grand badge
Theres this guy who says html is a programming lang
brave mantle
it literally has "markup language" in the name
grand badge
Ikr
Sql is not a programming lang right?
Query lang
Im kinda new need to ask some questions
brave mantle
structured query language
grand badge
Yep
grand badge
Okay, ik its query lang
kind steppe
happy 21st october
brave mantle
I've worked with oauth
kind steppe
https://discord.report/ uses discord oauth2 for login
brave mantle
for a map, of all things
kind steppe
o
grand badge
Theres this html code u can use to implement a disc server in a website
kind steppe
what if I don't want to know what it is mister gdude2002
brave mantle
then I'm still not telling you
since I'd be breaking the license that I wrote and added an exception for myself to
kind steppe
okay fair enough
brave mantle
xD
anyway the main thing you need to know is that discord oauth works and is also a pain in the ass to handle in a window
brave mantle
why not use Dithcord
kind steppe
because evie.codes wrote it and I have an aversion to her
plus the latest commit was in february
brave mantle
oh right, I forgot about her
kind steppe
Andrei's was 4 days ago kek
brave mantle
isn't she some super crazy feminist person?
I haven't interacted much but she was pretty hostile to me on the testers server for being a dude
kind steppe
she's crazy and minimods every discord server ever
brave mantle
borderline SJW, then..
kind steppe
even better
she makes youtube tutorials on discord bots
https://www.youtube.com/watch?v=Q03akWZkjZ8 comments disabled so much hATE
kind steppe
true
grand badge
Im gnna change to django, guys, i think its time i grow up
brave mantle
:P
kind steppe
or we could just abandon Python completely and use Elixir Phoenix
brave mantle
It amuses me how many language specific servers I've been to where the staff prefer other languages
kind steppe
Lmfao
native tide
see
dawn vessel
grand badge
Can someone explain to me what the ```python
models.ForeignKey()
@grand badge Have you had a look at this? https://docs.djangoproject.com/en/1.11/topics/db/examples/many_to_one/
It's a foreign key relationship
Essentially it exists to refer to the primary key of a row in another table
thus associating this row with that one
I believe django generates a primary key for each model automatically, so that's what you'd be referring to
grand badge
@brave mantle thanks!
brave mantle
No problem
grand badge
@brave mantle do u use django mostly?
brave mantle
I use aiohttp mostly
grand badge
oh yes i see wat u mean
deep cave
I used to be a django guy
but then I wrote one system in flask and never felt compelled to ever use django again
grand badge
i used to use flask but i think im gnna stick with django despite being more complex than flask
deep cave
I used to think flask was great for smaller projects and django was great for bigger ones but now I just think people should use the microframeworks for any project and write whatever complexion they need from scratch, or piece it in by integrating optional modules.
grand badge
true
for me, writing django is more fun than flask
and i feel that its easier for me in some ways
deep cave
not trying to talk you out of django. it's a great system.
kind steppe
I used to use flak for most things
deep cave
if you like it, you should do it!
grand badge
flask is great
kind steppe
I use Phoenix more now but that's not Python ยฏ_(ใ)_/ยฏ
grand badge
but after comparing ima go play with the pony
deep cave
and the book Two Scoops of Django was very helpful, if you're into reading.
native tide
grand badge
wat
deep cave
I don\t think so.
grand badge
okay
deep cave
it's also not a super cheap book
so.. there are probably good free sources you can use instead.
I just really liked it for its writing style
was very lightweight and fun and easy to read.
it's not a django learning book though, it's best practices
so it's for people who know django and wanna write better django
deep cave
haha
grand badge
when u said expensive i thoght u meant 25 dollars or something
deep cave
nope, it's expensive
you can probably get one for an older version of django and learn almost all the same lessons for a third of the price
but still
just something to consider for later
if you stick with it
grand badge
its less in the uk but wow...
spare pelican
deep cave
that's for django 1.5, a very old version indeed.
grand badge
okay, gtg, was nice talking to ya
deep cave
and also probably piracy?
grand badge
and thanks korex for the link
deep cave
seeya hasan
grand badge
cya!
spare pelican
Whats the newest version?
deep cave
like 1.11 or something
spare pelican
ok
deep cave
I wouldnt buy it if I didnt have a steady income. tons of good free sources out there.
grand badge
yeh true
compact pelican
Hey guys quick question, when trying to get this function to work where it takes a policy ID to pull information to render a template i get that the attribute has no get function.
https://pastebin.com/jteJViZM there is the paste with my code, i cannot figure out what is wrong its usually something really simple i cannot see or am overlooking as pointed out by devoid . any help would be greatly appreciated. the get function is supposed to grab the data from an ORM database with foreign keys.
torpid linden
hi
brave mantle
@torpid linden Please verify yourself as described in #352442727016693763
grand badge
how do i get static files to work in Django?
deep cave
the official django tutorial covers it, and it's a reaaally good tutorial
have you run through it?
grand badge
i found it confusing
steep bane
hi, not sure if this is the best place to ask, but i was wondering if anyone here has experience working bs4?
nvm, got it (:
grand badge
Does anyone know any open source django projects that are good to learn from for a beginner?
celest zinc
got task was destroyed but pending
my idcheck function is taking long time to oerate but i have added await on it still it shuts the bot down
chrs=str(await idcheck(msg,0,message,client))
for file in repo.get_dir_contents('/'):
if file.name[-4:]=='.txt':
msg=urllib.request.urlopen(durl+file.name).read()
len1=len('{}'.format(msg).split('\\n')[0])
len2=len('{}'.format(msg).split('\\r\\n')[0])
if '{}.txt'.format(hwid)== file.path:
#print('{}.txt'.format(hwid)+'<==>'+file.path)
flag=1
return flag
elif len1<4:
msg1='{}'.format(msg).split('\\n')[1]
print(msg1)
if msg1==message.author.name:
flag=1
return flag
elif len2<7:
msg2='{}'.format(msg).split('\\r\\n')[1]
print(msg2)
if msg2==message.author.name:
flag=1
return flag
if flag==1:
break
#print('{}.txt'.format(hwid)+'<==>'+file.path)
return flag```<@&391349088387334147>
brave mantle
Coroutines are not magic
You're using urllib to grab a url, that's your problem
You should be using aiohttp
celest zinc
okey wrkin on dat
native tide
brave mantle
tbh that problem is less of a user problem and more of an implementation problem, I'm starting to realise
kind steppe
Elaborate on that
The first message they see tells them to read the rules and type the verified command
brave mantle
your bot isn't smart enough, basically
kind steppe
Also your at everyone only made 3 people verify lmao
brave mantle
- It requires case-sensitivity
kind steppe
oh ty ty
brave mantle
- It doesn't prevent people from assigning other roles when not verified
brave mantle
- It makes us clean up incorrectly-formed messages (and chat) manually
kind steppe
I might just make a custom bot for all this
kind steppe
instead of editing PyButt every time lmao
kind steppe
lol what
jolly hollyBOT
โฏ Server Information
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Members: 1218
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mild bridge
Not sure if this should go here, but when I'm using selenium webdriver with the --headless flag, I still get a console log window open. Is there any way to hide this?
deep cave
save it as a .pyw file and see if that does the trick. on windows anyway
headless only prevents the browser window
mild bridge
Tried it, but it seems that this window's the selenium log or smth. Looks like the python window is seperate
deep cave
hm. right
have you tried with firefox instead of chrome as the driver? might be the same, iunno.
mild bridge
I'll have a look when I get home, thanks
deep cave
the far more complicated solution in windows would be to somehow get chromedriver to run as a service
but I have no idea how to make that play nice with selenium
there seems to be some github packages intended to make chromedriver a service for use with the java version of selenium and with seleniumgrid
but nothing for use with python
that I can find, anyway
interesting problem, though
grand badge
how do i send emails in django???
brave mantle
grand badge
i went through it, and i got smtp auth error
brave mantle
so your password is wrong
grand badge
it was right
brave mantle
nope
grand badge
u sure??
brave mantle
yep
that's what the error means, after all
although knowing most people around here, you're probably using a mail service with 2-factor
grand badge
yep
brave mantle
yeah so you can't use your normal password
brave mantle
you have to generate an app password because 2-factor only works in the browser and gmail apps
grand badge
sooooooo how do i do that?????????
brave mantle
well, you'll have to do that with your mail provider
brave mantle
that has nothing to do with anything
grand badge
ik..
signal karma
Does anyone use Flask here? =x
signal karma
Okok, good to know. I will definitely have questions tomorrow ๐
home now
I just had this question I already asked on the github: https://github.com/noirbizarre/flask-restplus/issues/372
More focused on Flask-Restplus/Restful
signal karma
I'm struggling in Flask-RestPlus with the following marshalling:
'articles': fields.List(fields.Nested(article, attribute=lambda x: x.articles)),
My Request table has articles = relationship("RequestArticle", cascade="all, delete-orphan"),
And RequestArticles has article_id = db.Column(db.Integer, db.ForeignKey("article.id"), primary_key=True)
I want to get in 'articles' the full detail of article.
signal karma
Finally having something working
'articles': fields.List(fields.Nested(article), attribute=lambda x: x.articles[0].article)
but it only gets the first then
How can it not only be the first? should be obvious I guess since it's a list, but can't find a way
This is not working:
'articles': fields.List(fields.Nested(article, attribute=lambda x: x.article), attribute=lambda x: x.articles)
signal karma
I get: TypeError: hasattr(): attribute name must be string
signal karma
Anyone doing flask here? ๐
signal karma
iron acorn
You are asking in a channel that has 16 people online.....
signal karma
@iron acorn So is everybody using Django?
iron acorn
I think more so than people using flask
AFAIK more django resources on web than flask
brave mantle
Most people use flask or aiohttp here
I don't use flask, @kind steppe is always recommending it though so he might have an idea
signal karma
@brave mantle Ah good to hear ๐
But @kind steppe is not in the #web-development channel =x
brave mantle
No, he is, owns the server
kind steppe
hello yes
I have used flask but I've never used what you are talking ahout
Also I don't really like flask anymore lol
kind steppe
I use something non Python lol, but Flask is your best Python webserver
signal karma
@kind steppe Really? ๐ฎ
Django seems a lot more popular
And Flask is confusing to me.. Note I have never been very involved in back end development, I'm a front end dev.
brave mantle
Flask makes you write more boilerplate than django
The companies love django because it's standardized and can be documented easily
but it's a bit of a behemoth
flask, on the other hand, isn't really that opinionated about how you do things
signal karma
My company chose Flask ๐ฌ
The problem is that I'm front end oriented, and in my company, no one knows really Flask โค
brave mantle
Then your company is one of the better ones lol
yeah, that's the problem
there's a lot of backend to write
flask won't do your database stuff for you for example, you'll have to do that yourself
django comes with an ORM
signal karma
I asked a question on the github of restplus(because that's what we use), I don't get why we have to write most twice marshalling and parsing...
I use sqlAlchemy
brave mantle
SQLAlchemy is pretty great
brave mantle
Pair it with alembic and, hey, there's your migrations
signal karma
I also use alembic
signal karma
tbh, they chose all the stack, I am unexperienced on back end stuff and no one knows around me how it should be used (international company)
brave mantle
I mean I know what the words mean, but not the context
signal karma
reffering to?
brave mantle
you're marshalling/parsing something
what's that something?
if you say "data" I'mma slap you
:P
brave mantle
right okay, so you have a schema and that's used to fill a dict, given some data
signal karma
So you'd say it is different then. But on my end points I can write @expect(some_schema), so I define already what I want in entry, why do I have redefine aaaall the keys again? (because on the parsing step, you have to specify each key you want)
brave mantle
system not smart enough?
That's not a flask thing anyway
at least, not that I know of
brave mantle
I'm confused as to why you need those
signal karma
Even flask-restplus suggest to use marshmallow for marshalling
Is marshalling a common word for back end python?
brave mantle
Not really
signal karma
ok
brave mantle
OK, so let me get this straight
signal karma
so if should come from rest*
brave mantle
you're defining a schema
and that schema is used to validate incoming data via the rest api
to ensure it has the correct params
right?
signal karma
in and out
brave mantle
Ok, so the returned data as well
it sounds like it would be trivial to write a middleware and decorator for that
signal karma
I use @expect() and @marshall_with(), which defines the model out
brave mantle
Like, let's say you have a middleware
You have it inspect incoming requests, and also inspect returned data
Actually no, the decorator can do all of that
so you have your decorator defined like, I dunno
def validate(func, **kwargs):
I'm not sure how complicated your schema are, but assuming you're just looking at keys and values in the request, it should be easy
@validate(key=int)
def get():
return ...
looks like that. I think it already takes care of the validation (you can specify many things: require, type, min-max, etc)
but I just don't get why I define a schema and set it as input AND have to rewrite all the keys inside. What's the point to 'expect' something in then? Oo
brave mantle
It just sounds like your schema library isn't smart enough honestly
signal karma
I mean either I misuderstand something, or the design is wrong. I guess it is the first assumption, but still can't find anyone explaining this to me.
brave mantle
You'd probably have to ask whoever wrote the library
..and then we're back where we started I guess
brave mantle
Above?
signal karma
like nodejs would come with express. Are there any popular usage of libraries above Flask?
signal karma
I bet, same for node ^^
what about rest libraries?
the biggest thing I don't like about Flask is that the community is very slim...
compare to Django
brave mantle
well I dunno why you even need a REST library in the first place honestly
flask is minimal enough that making your endpoints is already easy
brave mantle
ah, :P
native tide
I added my self
deep cave
good
native tide
So are you saying i cant make a script in the models.py to add json data to the database?
deep cave
uh. sure you can.
but
basically inside models.py you're defining the generic model, so you have to do it in a generic way.
let's say you have a json file that has the age of all the users
you could set an age property inside models.py that goes into that json file and looks up the age based on the users name or something.
the key is to do it in such a way that it will work for every instance of that model
native tide
The data comes from an api of another site
deep cave
yeah. well you could have a property in your model that looks up some information in an api.
native tide
I made a def function that does
Im just not sure how to take the return data and put it into each field of the model
deep cave
okay. so you have a function inside the model that does what you want it to do?
native tide
It gets the json data ges
deep cave
basically you can just treat that function as a normal attribute then.
native tide
Yes*
deep cave
for example
if you have
class User(models.model):
def age(self):
# call some API and get the age
age = api.get_age()
return age
say you have this
now all your users will basically have an age property that you can just access like any other field.
so in your template you can simply do {{user.age}}
brave mantle
huh, didn't know django could do that without a @property
deep cave
all functions inside of models.Model objects are essentially treated as a @property
at least.. if I recall correctly. it's been forever since I wrote actual django but I'm looking at some old code now and I don't have a @property decorator on any of my functions.
brave mantle
haha
deep cave
but @native tide , to be clear, this doesn't actually store the return value of age() in the database. the database will only ever really have a reference to that function.
native tide
Thanks man
brittle copper
I never read those :(
kind steppe
lol rip
opal coral
youre verified so you agreed to them rules tho
brittle copper
The verify me command wasn't there IIRC
kind steppe
!info @brittle copper
jolly hollyBOT
Someone#1720
brittle copper
And I still can't see the verify me command there
Joined: 2 days ago (2017-12-28T12:18:35.671478)
native tide
kind steppe
yeah when you verify you get removed from the checkpoint channel
opal coral
well you cant see the #352442727016693763 channel yeah
kind steppe
opal coral
are you a hackerman
brittle copper
Yeah that is the problem
I just copied the command without doing anything you ask me to do
kind steppe
understandable
opal coral
lmao
brittle copper
I didn't even read the text after the command xD
kind steppe
understandable
brittle copper
Wouldn't it be awesome if django had the ajax ability with it
So we could write our ajax too with python :(
kind steppe
@brave mantle what was that python for web thing you were showing?
brave mantle
They've been working on webassembly compiling for python, but webassembly isn't ready for that kind of use yet
You can't really interact with the DOM with it yet
kind steppe
no there was the other thing
brave mantle
There are a few JS transpilers around or JS-implemented VMs
I can't remember off the top of my head
easy to find though
kind steppe
Brython
that was it
@brittle copper you could use this http://brython.info/
from browser import document, ajax
url = "http://api.open-notify.org/iss-now.json"
msg = "Position of the International Space Station at {}: {}"
def complete(request):
import json
import datetime
data = json.loads(request.responseText)
position = data['iss_position']
ts = data['timestamp']
now = datetime.datetime.fromtimestamp(ts)
document["zone10"].text = msg.format(now, position)
@document['button10'].bind('click')
def click(event):
req = ajax.ajax()
req.open('GET', url, True)
req.bind('complete', complete)
document["zone10"].text = "waiting..."
req.send()
This looks promising
kind steppe
It's pretty nice from what I've seen
brittle copper
Yeah, before trying to learn js I'll deeply look into this, thanks alot
native tide
@deep cave no i didnt get it working bro
I did figure out from further reading the documentation that i need to use a costume django-admin command but i keep getting a error when i run the script
brittle copper
class Title(models.Model):
title_text = models.CharField(max_length=50, null=True)
title_url = models.CharField(max_length=100, null=True)
def __str__(self):
return self.title_text
class Entry(models.Model):
entry_title = models.ForeignKey(Title, on_delete=models.CASCADE)
entry_text = models.CharField(max_length=2500, null=True, blank=True)
entry_author = models.ForeignKey(User, on_delete=models.CASCADE, null=True, blank=True)
entry_date = models.CharField(max_length=20, null=True, blank=True)
entry_points = models.IntegerField(null=True, blank=True)
entry_id = models.CharField(max_length=10, null=True, blank=True)
entry_readability = models.BooleanField(default=True)
def __str__(self):
return self.entry_text```How do I get all the Entrys' titles?
Not all the titles, I need them in an order so I need to get all the Entrys' titles and use them like that
native tide
Im making a script to set up the data base when the site is first deployed
Would it be slow to request the json data one at a time then save
native tide
Would it be better to req tell the needed amount is met then save them?
Also when i first deploy the site it will be a lot
deep cave
no, that sounds like it would be the same. can't you request all the data in one request instead of lots of little ones?
deep cave
it's the network traffic you wanna watch out for, that's the real killer. doing 10000 webrequests is bad. doing 1 webrequest for 10000 things is ideal. likewise, you don't wanna do 10000 insert statements to the database, you wanna insert 10000 things in one go.
all the stuff you do in python is usually very fast
but making network requests is sloooow.
and if you absolutely have to make thousands of requests, you probably wanna look into threading or something so you can do multiple near-simultaneous ones instead of waiting for each one before starting the next.
native tide
Yes i see
I will just look for a better way to get wha i need
What*
A single req per item just wont work but there service only allows it that way
deep cave
but with all that said - don't optimize before you test.
if it's fast enough already, all of this is pointless.
first make sure it's actually slow, then fix it.
premature optimization is the bane of many talented programmers.
maybe the API is extraordinarily fast, maybe you don't have to fetch as much data as you think, etc. learn to profile it.
native tide
@deep cave i found a much better service that allows multiple items to be called with one req thanks so much for your advice bro
deep cave
good!
hey, no problem. that's what we're here for.
try to do the same when you spit the data into the database, too
native tide
This is my first site that im putting up for commercial purposes
deep cave
when inserting tons of data, there are techniques. you may wanna read up on it a bit.
common mistakes people make are to connect to the database more than once, to insert the items one line at a time, or to try to insert everything in one huge chunk.
what you want to do is connect one time, then insert batches of data at a time, verify it's working, and then commit.
you might want to do a bit of reading to find the best approach
native tide
Do you have any example code you have a link to so that i may see?
deep cave
the approach differs from database to database.
native tide
Or where to find it in the docs
deep cave
just google "inserting large amounts of data into postgresql" or whatever db you're using.
what db are you using? just out of curiosity?
native tide
MySQL cuss dreamhost offers ulimited space for it
deep cave
native tide
Is there a way to save data in the way your talking about using a model or will i have to use raw sql?
deep cave
some approaches here
I've never really worked with mysql but building a multi-row insert is usually a good approach
native tide
Django doc said to avoid raw sql as much as possible
deep cave
oh you're working with django. I see.
no, I think you have to use raw SQL for this kind of thing.
the django ORM is not suitable for bulk operations afaik
although it's possible if you go ask #django on freenode or something they will have a suggestion
there is this bulk_create() method
but.. iunno man
again it depends on the amount of data
I would have just written some SQL for this
it looks like if you absolutely must, you could probably use a list comprehension with that bulk_create() method
to insert your data
native tide
I just have never delt with it
deep cave
Entry.objects.bulk_create([Entry(headline=x) for x in headlines]) would presumably work if you had a ton of headlines in a list
but I don't know how performant it will be
so you might wanna test it if you wanna keep it in the family - and then do some profiling to see how long it takes.
but if it's super slow, pure SQL will probably be the way to go.
native tide
I will test and see thanks
deep cave
I'm assuming you understand listcomps
feel free to say if you don't, I'm happy to explain them
deep cave
it's like a shorthand for building a list. it's very powerful and you probably should google and read a bit
but basically
nums = [1, 2, 3]
# this code
strings = [str(x) for x in nums]
print(strings) # => ["1", "2", "3"]
# is the same as this
strings = []
for x in nums:
strings.append(str(x))
print(strings) # => ["1", "2", "3"]
Whats diffrence does it make one way over the other then?
deep cave
python considers them the same - but basically the former method can be very succinct and elegant if wielded responsibly
you can use the second approach if you prefer it
Entry.objects.bulk_create([Entry(headline=x) for x in headlines])
this is a good example. the second approach would have looked like this:
entries = []
for x in headlines:
entries.append(Entry(headline=x))
Entry.objects.bulk_create(entries)
I prefer the first
or you can strike a nice balance between them and go for
entries = [Entry(headline=x) for x in headlines]
Entry.objects.bulk_create(entries)
anyway it's all style
deep cave
obviously in your case you'd replace the Entry constructor with whatever model you wanna create, but it should be easy enough to adapt.
deep cave
good luck
signal karma
Hey guys
I am having difficulties to find my way around something or the right way to do it.
I am using Flask-RestPlus (same as RestFul)
I would like a marshalling such as follow:
'articles': fields.List(fields.Nested(article), attribute=lambda x: x.articles[0].article),
The problem is this [0], it is a list , I should not have to precise any index
But I can't figure out how to say I want the current object articles list and inside this relashionship I want the article relashionship.
I can provide more information if required, I just don't wanna spam of information๐ค
lambda: http://flask-restplus.readthedocs.io/en/stable/marshalling.html#renaming-attributes
list & nested: http://flask-restplus.readthedocs.io/en/stable/marshalling.html#list-field
If that makes more sense to some one here than to me...
native tide
signal karma
Still on it ๐
mild bridge
:\
You might have better luck posting in #help-falafel? Afaik you don't need any self-roles to see questions
signal karma
@mild bridge But Flask is really web dev, I'm afraid they won't like that.
brittle copper
Uhm, quick question: https://hastebin.com/heribukine.vbs is this a healthy looking view in django?
deep cave
@signal karma
signal karma
๐ฎ
deep cave
first of all let me just say that I don't really see the point in Flask-RestPlus at all. just write the whole thing from scratch, this just overcomplicates it. :/
secondly, I think the key to solving your problem is to use a real function instead of a lambda
signal karma
I think it is because it carries swagger
deep cave
but in order to help you with that, I need you to clarify what you mean by "the current object"
current how?
can I maybe see some more code?
signal karma
hm, in an end point, I return an object. This is the 'current object'.
Sure
article_full = namespace.model('ArticleFull', {
'id': fields.Integer(required=True),
'title': fields.String(required=True),
'description': fields.String(required=True),
'image': fields.String(required=True),
'brand': fields.String(required=True),
# TODO: Fix index location to user making the req
'price': fields.Float(required=True, attribute=lambda x: list(filter(lambda y: y.location_id == 1, x.prices))[0].price),
'category_id': fields.Integer(required=True),
})
@namespace.route('/')
class ArticleListAPI(SecuredResource):
"""Articles REST end points"""
@staticmethod
@namespace.marshal_list_with(article_full, envelope='articles')
def get():
return Article.query.all()
I have 2 lambdas
this is one of them
Does that make more sens? =x
deep cave
sure, you always use a lambda with filter
or. well, almost always.,
I can't speak to whether or not it's correct without seeing the rest of the code, but I take it this one works for you then?
signal karma
it does, just it should be dynamic on the user's location
deep cave
okay
signal karma
instead of y.location_id == 1
but I guess I can write whatever inside, since it seems it is only evaluated on return
When called
deep cave
so, would you know how to write a real function that returns the correct price?
taking in some sort of user location identifier as an argument?
it seems like a much simpler way to go about this
signal karma
That one thing I need to figure out, how to know who is making the request for thiskind of cases
and also to restrict API to users rights
deep cave
and attribute takes any callable that returns a value
so you can just put a regular function call in there
instead of this gross lambda stuff
signal karma
I could do that for the location. I'll probably do that, but not for the rights
deep cave
no, that's true, you'd probably want to restrict users at a higher level and never execute this if they don't auth
signal karma
okok good to know, I'll avoid lambdas^^
deep cave
you don't have to avoid lambdas -- but it's a good place to start if you're not sure why this doesn't work.
signal karma
i thought to build a decorator for that, but I still need user info
signal karma
right
signal karma
I thought of using JWT or redis cache
deep cave
I mean I don't see how you're gonna do any of this without knowing who the user is
signal karma
exactly ^^
deep cave
yeah JWT is one approach I guess
but I guess you should start with that. figure out who the user is. then auth the user. and then write functions to use that userdata to fetch the right price or article or whatever it is you wanna fetch
then stick those functions in the marshalling attributes
problem solved
that make sense?
signal karma
ok
yes it does, it's more clear to hear it^^
Actually the problem I am trying to solve right now is how to get a SQLAlchemy relashionship many-many with the extra data inside the linked table.
I guess it should come from the table definition...
deep cave
what's the database
sqlalchemy is just how you access the database, and generally speaking the relationships are defined in the database itself.
signal karma
class Request(db.Model):
"""Model for Request."""
__tablename__ = 'request'
id = db.Column(db.Integer, primary_key=True)
# [...]
articles = relationship("Article", secondary="request_articles")
so you're asking the wrong question.
I mean, don't get me wrong, SQLAlchemy does have mechanisms for many-to-many
but first you need to look at your actual database
and see if it even supports it
deep cave
sure. okay. mysql.
which of course has all kinds of relationships
an example here
this should work fine in SQLA -> MySQL
or at least something like it
also some good examples here
signal karma
Ok. I personally followed the sqlalchemy doc on Association Object: http://docs.sqlalchemy.org/en/latest/orm/basic_relationships.html#association-object
signal karma
I just get the Article information, not the extra data from the middle table
request <- request_article(extra data) -> article
but my relationship is
articles = relationship("Article", secondary="request_articles")
that doesn't seem to match how they've done it in the documentation you linked.
let's see some more of your code for how you make that relationship
signal karma
class Request(db.Model):
"""Model for Request."""
__tablename__ = 'request'
id = db.Column(db.Integer, primary_key=True)
# [...]
location_id = db.Column(db.Integer, db.ForeignKey("location.id"), nullable=False)
articles = relationship("Article", secondary="request_articles")
class RequestArticle(db.Model):
"""Model for Request Article."""
__tablename__ = 'request_articles'
id = db.Column(db.Integer, primary_key=True)
request_id = db.Column(db.Integer, db.ForeignKey("request.id"))
article_id = db.Column(db.Integer, db.ForeignKey("article.id"))
state_id = db.Column(db.Integer, db.ForeignKey("state.id"), nullable=False)
quantity = db.Column(db.Integer, nullable=False)
article = relationship('Article')
class Article(db.Model):
"""Model for Article."""
__tablename__ = 'article'
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(255), nullable=False)
description = db.Column(db.Text)
image = db.Column(db.String(255))
brand = db.Column(db.String(255), nullable=False)
category_id = db.Column(db.Integer, db.ForeignKey("category.id"), nullable=False)
prices = relationship("ArticlePrice", cascade="all, delete-orphan")
You have it all here guess
Does that clear it up ? =x
deep cave
yes, gimme a minute to read.
right. but you wanted bidirectional relationships, right?
so in the documentation you linked, they show an example using back_populates
did you try that?
there's also no use of secondary
signal karma
not really. I have a table of articles to show it in the store. I have a list a requests to which are attached articles, and here I need the article details.
deep cave
and I'm not sure, but something tells me that perhaps the variable names child, children and parents are not arbitrary but may infact be required to tell the classes about the relationships
signal karma
But articles themselves do not need to know which request they are attached to, that's why I didn't write a backref
signal karma
I use the secondary to avoid returning the request_article table(when I request all Requests), I want the article full information, on the first level. But this way, I miss the extra data =/
signal karma
That's why I had a lambda in the first place, I wanted the article info not just its id(from request_articles).
deep cave
I mean in the docs, they basically handle all that stuff after the def, but you sound like you want to just map the property of the one class to the other.
I mean, the value of this association stuff is in this code example
# iterate through child objects via association, including association
# attributes
for assoc in p.children:
print(assoc.extra_data)
print(assoc.child)
And I would like to have these two merged
on return
Maybe it is not possible =x
But I am a front-end dev originally, and I'd ask to my backend dev to return it as such.
deep cave
it's probably possible - but I'm not sure I understand why
if you have these relationships intact, you have access to everything
why do you need to merge everything
signal karma
Because I want to treat it as one thing, not as extra and original data
deep cave
I get that but you can still merge those two things before you return them to the API caller
signal karma
this is back end logic, the client should not have to be aware of what is extra
deep cave
the problem is that you're trying to do that in the ORM class definitions.
that's not necessary
signal karma
Maybe I should...
I was worried of treating all the records before return the values, but I should use paging anyways...
I wanted it to be automated from there ๐
deep cave
again - you can just make a function, feed it both of the datas, merge them in the function and return the merged dataset, and then feed that function to attribute
just to keep it simple.
deep cave
yeah, like you're doing with the lambdas
deep cave
def merge_data(data1, data2):
return data1 + data2 # it's probably not this easy but I'll let you figure this part out
# ...
'price': fields.Float(required=True, attribute=merge_data(data, extra_data)),
something like that
not quite like that, probably, but you get the idea.
deep cave
I've never really worked with flask-restful, and I almost never use sqlalchemy either so this may not be the optimal or intended solution
but I think it'll work, and really, that's the important part.
signal karma
seems close to what I had, I got lost over trying I guess
signal karma
haha
deep cave
@brittle copper I guess it looks healthy, but it desperately needs blocks and comments for readability.
it looks cramped, currently.
brittle copper
Nice, I was worried about the length because I read something like don't write too long view function; if the only problem is that it lacks comment, I can always add some :D
deep cave
blank lines and comments. yeah. it'll be longer, but it will be split into chunks which will make it far more readable.
right now it does look long
but only because the whole thing is just one big chunk
it's kinda like writing a normal english article or something, you need paragraphs, headlines, subheaders. nobody wants to read a wall of text.
brittle copper
I tried to follow pep8
native tide
deep cave
PEP8 says something like "use blank lines (sparingly) to indicate logical sections inside functions"
brittle copper
Hmm, PyCharm didn't warn me, damn :D
deep cave
it also has a section on block comments
# this is where the fudge gets made
go_around_corner()
for step in factory.road:
take_step(step)
fudge = make_fudge()
# reformat and return
refudgify(fudge)
return fudge
this kind of thing is great for readability
although just make sure your block comments aren't too obvious
I probably wouldn't have written that last one
the point of the comments is to let the reader skim your code
and see what a section of code does without having to read any code
brittle copper
Yeah should add comments, some does look like as if it doesn't make sense without any context
deep cave
and lastly - pycharm is great for helping you maintain your PEP8 compatability
but
PEP8 is short
read it
at some point, at least, in your python career
brittle copper
My 30 days of python carrier xD
deep cave
you don't have to read it today, but it's quite pleasant reading
it's not too bogged down in technicalities
gives plenty of examples
and a lot of the stuff in there is just really smart stuff you can apply to any language
python is, after all, quite famous for its emphasis on readability and ease of use
and PEP8 is one of the reasons it has earned that reputation
it's a honking good document
brittle copper
Alright I'm on a train rn so I have nothing better to read :D
deep cave
cool
brittle copper
And thanks again
deep cave
no problem.
signal karma
I receive this error : TypeError: int() argument must be a string, a bytes-like object or a number, not 'Integer'
sending this:
{
"id": 2,
"articles": [{ "id": 1, "quantity": 2, "state_id": 2 }, { "id": 1, "quantity": 1, "state_id": 3 }]
}
with this python:
request = namespace.model('Request', {
'id': fields.Integer(required=True),
'by_user_id': fields.Integer(required=True),
'for_user_id': fields.Integer(required=True),
'reason': fields.String(required=True),
'location_id': fields.Integer(required=True),
'articles': fields.List(fields.Nested(cart_article)),
})
@namespace.route('/')
class RequestsListAPI(SecuredResource):
"""Requests REST end points"""
@namespace.expect(request)
@namespace.marshal_with(request_full)
def put(self):
parser = reqparse.RequestParser()
parser.add_argument('id', required=True, type=int)
parser.add_argument('articles', required=True, type=cart_article, action='append')
args = parser.parse_args()
I have no idea where is comes from, I send only ints and it says it should be a string... my model only takes integers too... Note I get this error even commenting the whole function. I guess it must come from the @expect.
brave mantle
Well, look at the traceback yourself then
You should see the file you wrote code in somewhere
signal karma
it is the lib --
brave mantle
It'll give you the exact line
signal karma
File "C:\HOMEWARE\Anaconda3-Windows-x86_64\lib\site-packages\flask_restplus\fields.py", line 394, in format
return int(value)
last log
brave mantle
Most people don't know how to read a traceback here :P
signal karma
it doesn't make sense since as I said my model takes int and I send ints.
brave mantle
I think I can easily wager what the problem is
signal karma
I guess it makes one more
brave mantle
But I don't have the full traceback
signal karma
but if the error was clear in the first place...
brave mantle
No, I think it's pretty clear
brave mantle
You're doing type=int in one of your calls to add_argument
signal karma
brave mantle
That's my first guess
brave mantle
OK, you have a decorator of your own there, are you sure that decorator is correct?
brave mantle
No, app/core/decorators.py
signal karma
uh
brave mantle
It's in the traceback
signal karma
๐ฌ
brave mantle
signal karma
Actually it's not my code, worked well so far, I don't even know what it does exactly =/
brave mantle
You're using it though
signal karma
yep
brave mantle
Read the code, that might help you figure out what it does :P
signal karma
yep will do thanks ;P
It is supposed to check authorization, that's all I know
it should not touch the data
and it doesn't
even all the operations inside the function works fine, I just get an "Internal Server Error" on the client side
brittle copper
Try deleting the last bits of codes that gave the error and try another approach for the same thing you are trying to do maybe? @signal karma
deep cave
there's always an error associated with one of those internal server errors
set up logging for flask and check the log file, you'll see something
brittle copper
Guys, how do we change BooleanField in django?
Class.objects.get(pk=165).bool_fiel = False doesn't seem to work
And yes I do save it afterwards
I've tried ^= False and = not Class.objects.get(pk=165).bool_fiel too
deep cave
why are you trying to do that
it's a field, you're supposed to spit it out into a form. it represents the field. like.. a checkbox. it's not a boolean.
it doesn't really have a value. it can have a default value. the form is what has the value, after the user submits it.
brittle copper
I can change every other field without needing a form, why can't I do it with this?
deep cave
but why would you want to
I feel like you're using form fields in a weird way if you're changing them
brittle copper
If a user wants to change his post from visible to not visible when he presses to button it takes him to www.page.com/delete/post_pk
def togglevis(request, entry_pk):
referer = request.META.get('HTTP_REFERER')
if User.objects.get(username=request.user.get_username()) == Entry.objects.get(pk=entry_pk).entry_author:
Entry.objects.get(pk=entry_pk).entry_readability ^= False
Entry.objects.get(pk=entry_pk).save()
return HttpResponseRedirect(referer)
else:
raise Http404```Form fields? I'm talking about model fields
class Entry(models.Model):
entry_title = models.ForeignKey(Title, on_delete=models.CASCADE)
entry_text = models.CharField(max_length=2500, null=True, blank=True)
entry_author = models.ForeignKey(User, on_delete=models.CASCADE, null=True, blank=True)
entry_date = models.CharField(max_length=20, null=True, blank=True)
entry_points = models.IntegerField(default=0, null=True, blank=True)
entry_readability = models.BooleanField(default=True)
def __str__(self):
return self.entry_text```right, that makes more sense.
brittle copper
:D
deep cave
(they're both called BooleanField, fucking django)
brittle copper
Damn
deep cave
btw I hate django
right so you're really trying to change entry_readability in this case?
brittle copper
After python @register.filter(name="replacer") def messagetolink(text): split = text.split('`') even, odd = split[0::2], split[1::2] return format_html_join('', '{}<a href="' + site_name + '{}">{}</a>', ((a, ("_".join(b.split())), b) for a, b in itertools.zip_longest(even, odd, fillvalue=''))) I hate it too
Exactly
deep cave
oh god, that's hideous.
brittle copper
There is no way to make a string permanently safe apparently
Soo, @deep cave how can I toggle the readability?
mild bridge
my eyes!
deep cave
I'm not really sure. what you were doing (the =, not the ^=) should have worked.
deep cave
that's how I would have done it, anyway
but.. uh.. you can specify the optional arguments in the .save() method maybe
iunno if it will help but it's a thing to try
brittle copper
wdym
deep cave
you can do like
Entry.objects.get(pk=entry_pk).entry_readability = False
Entry.objects.get(pk=entry_pk).save(['entry_readability'])
and see if it likes that better
brittle copper
Lemme try
deep cave
it shouldn't matter, but
I think it does an UPDATE instead of an INSERT when you specify
there's a force_update keyword argument you can do, too
it's possible your save is doing INSERTs instead and creating new rows
but you want to update existing rows
brittle copper
omg
deep cave
lol, I guess it inserted a duplicate
deep cave
naw, just remove the duplicate manually
brave mantle
The DB should have rejected it
deep cave
and try again but this time with the force_update keyword argument
and yeah the DB should have rejected it. :/
again - did I mention I hated django?
deep cave
no. I like flask.
brave mantle
Fair do's
deep cave
I used django as my first ever webframework
so I kinda know it a little bit
but it was a pain in the ass
discovering flask was like a religious experience after having worked with django
deep cave
sadly I still have to maintain a few django apps
deep cave
you removed the duplicate and tried with force_update?
brittle copper
Yeah
brittle copper
When I toggle it from admin panel it works as expected, the posts doesn't show up in their link but I can't do it from a damn view
deep cave
have you made sure that your Entry.objects.get(pk=entry_pk) actually gets an object that you can use?
brittle copper
I have another view with url www.webpage.com/entry/entry_pk which shows the related entry
deep cave
right.
try this thing again but this time specify the argument name
Entry.objects.get(pk=entry_pk).entry_readability = False
Entry.objects.get(pk=entry_pk).save(update_fields=['entry_readability'])
cause.. I can't find the .save documentation so I'm not really sure about the order, can't confirm if update_fields is actually the first positional
brittle copper
Yeah this doesn't work either
I'm just gonna use CharField as BooleanField by giving it either 1 or 0
Thank you for your help anyway :D
deep cave
I mean, if it works from the admin panel I suppose you could just try to figure out how it's done there
the admin panel is after all just code in your project
but.. yeah I guess a charfield will do the job
I've done worse hacks in my own django projects :(
and to be clear - I'm sure if you go on freenode #django and ask, they'll tell you that there's a perfectly reasonable justification for this behavior
and that if you only do this and this and this and this it will work fine
because that's django in a nutshell
but I'm afraid I'm too shit at django to tell you what it is.
brittle copper
def togglevis(request, entry_pk):
referer = request.META.get('HTTP_REFERER')
entry = Entry.objects.get(pk=entry_pk)
if User.objects.get(username=request.user.get_username()) == Entry.objects.get(pk=entry_pk).entry_author:
entry.entry_readability = False
entry.save()
return HttpResponseRedirect(referer)
else:
raise Http404```django to me is just chock full of these "why the fuck is it doing this" situations and then if you ask the django guys they're like "oh yeah that's a feature not a bug"
brittle copper
Apparently this works
deep cave
wait, how is that different
oh.. maybe because it's just one get
instead of two!
maybe by getting it twice you're undoing your previous changes
brittle copper
Apparently my former try was getting the object second time before saving it
brave mantle
that's pretty common, though
deep cave
yeah, I guess it makes sense
brittle copper
Yeah, I can't believe I wasted 30 mins for this
deep cave
sure you can
brittle copper
I just didn't want to assign the object to a variable since I wasn't gonna use it again and again
deep cave
30 minutes isn't even that bad
brittle copper
Oh god I don't want to end up being a programmer xD
deep cave
you're already a programmer
brittle copper
Damn
deep cave
cause it's friday night and you just spent half an hour on a django problem.
brittle copper
But the hardest thing I've ever done so far was python @register.filter(name="replacer") def messagetolink(text): split = text.split('`') even, odd = split[0::2], split[1::2] return format_html_join('', '{}<a href="' + site_name + '{}">{}</a>', ((a, ("_".join(b.split())), b) for a, b in itertools.zip_longest(even, odd, fillvalue='')))
This
deep cave
non programmers don't do that
brittle copper
And I didn't even do that, couldn't, someone else did it for me
deep cave
well, that's almost ugly on purpose
brittle copper
How else can you do that?
deep cave
just do it with more lines of code, it'll immediately be cleaner and more readable.
but I have no idea what the hell it's doing
that return line is a clusterfuck though
brittle copper
Unless you return it in format_html_join() django automatically turns everything into escaped characters
deep cave
I wouldn't use that return line if I was writing code for my worst enemy
deep cave
you can still return it in format_html_join(), just don't do everything on the same line
brittle copper
I mean I can't it just impossible for me