The Basics of Django Models

  Рет қаралды 99,314

Pretty Printed

Pretty Printed

6 жыл бұрын

In Django, or any web framework, models to interact with your databases are extremely important. In this video I show you how to connect to a database, create models, create relationships, and insert, update, and delete data in the database.
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Пікірлер: 210
@prettyprinted
@prettyprinted 4 жыл бұрын
Join my free course on working with the database and models in Django: prettyprinted.com/djangodatabase
@graphicdesignblogtopics2130
@graphicdesignblogtopics2130 3 жыл бұрын
Hello Dear sir. Today i complete python basic and your DJANGO class. and upload a project in Heroku. I need to internship can you take please internship.
@eightsoft
@eightsoft 3 жыл бұрын
@@graphicdesignblogtopics2130 can you share your WebApp server ? Tutorial is really helpful 💚 i wanna see your result 👏
@deedanner6431
@deedanner6431 3 жыл бұрын
Honestly, these are the best Django tutorials I've seen.
@russelfernandes8483
@russelfernandes8483 6 жыл бұрын
A really good video, covers the basics well - concepts and implementation of basic tables one would need, CRUD and primary/foreign keys. Being a hardcore Oracle DB guy the simplicity of the framework supported models is very refreshing and you've done a wonderful job, at the right pace to explain the essentials. Subscribing to your channel now.
@prettyprinted
@prettyprinted 6 жыл бұрын
I'm glad you like the video. Thanks for watching and for subscribing!
@scadeline805
@scadeline805 3 жыл бұрын
thank you for many-to-many relationship's explanation, really helped! You are a cool guy
@nancychaudhry3623
@nancychaudhry3623 3 жыл бұрын
Thank you for making this! Really clear explanation.
@matrixdexter270
@matrixdexter270 6 жыл бұрын
finally i understand django from this channel compared to other channels
@andrewstrausbaugh4517
@andrewstrausbaugh4517 2 жыл бұрын
Earned a sub from me. Glad there are primers out there that keep it simple but don’t miss the important steps.
@sebolokiaubreykabelo955
@sebolokiaubreykabelo955 4 жыл бұрын
This video really helped helped me a lot even though I was working on a different database mysql
@BikiniGyat
@BikiniGyat 3 жыл бұрын
the way you explained it was great! i subscribed to see more of your videos.
@Shubh22
@Shubh22 Жыл бұрын
Thanks man! very clear and precise explanation. Helped me in understanding the many2many relationship between tables.
@stagedtruths-7858
@stagedtruths-7858 2 жыл бұрын
Excellent video, very clearly explained. Bravo!
@eliper1265
@eliper1265 5 жыл бұрын
The most well deserved thumbs up in my life! You are a talented teacher, my friend.
@prettyprinted
@prettyprinted 5 жыл бұрын
Thanks!
@mahabubelahi7390
@mahabubelahi7390 6 жыл бұрын
best Django model tutorial I have watched so far.
@prettyprinted
@prettyprinted 6 жыл бұрын
Thanks!
@JonathanCutrer
@JonathanCutrer 6 жыл бұрын
Excellent, easy to follow Many-to-Many relationship example. Thanks!
@prettyprinted
@prettyprinted 6 жыл бұрын
Glad this video helped you. Thanks for watching.
@bijarnia_vikash
@bijarnia_vikash 6 жыл бұрын
Thanks for Introducing Django Awesomeness.
@vijaynaudiyal1287
@vijaynaudiyal1287 4 жыл бұрын
Thanks, it was really helpful. keep up the good work.
@mujeebishaque
@mujeebishaque 5 жыл бұрын
Man, 1 minute in and I already love this guy.
@prettyprinted
@prettyprinted 5 жыл бұрын
Thanks!
@echoky3189
@echoky3189 2 жыл бұрын
i like how you teach the thinking process unlike other tutorials where they try to show off the skills
@Geolimber
@Geolimber 4 жыл бұрын
Great explanation, thanks
@sayedahmads
@sayedahmads 4 жыл бұрын
Your video tutorials are the best Anthony. Can you also demonstrate how to work with many to many relationships through a secondary table where you have other fields too on the relationship?
@matthewcragg3607
@matthewcragg3607 3 жыл бұрын
Very helpful. Thank you so much!
@bruhhhhh718
@bruhhhhh718 3 жыл бұрын
this was really great man, thank you
@imadust
@imadust 2 жыл бұрын
good job man, nicely taught
@mahmudsajib8648
@mahmudsajib8648 4 жыл бұрын
Amazing tutorials!
@benardnguyo6817
@benardnguyo6817 4 жыл бұрын
Thank you so much. Very helpful
@xiexfeng
@xiexfeng 6 жыл бұрын
Thank you! I appreciate your time and efforts.
@prettyprinted
@prettyprinted 6 жыл бұрын
Thanks for taking the time to watch.
@esantix
@esantix 3 жыл бұрын
Thanks for the great video!
@prathamagarwal4845
@prathamagarwal4845 2 жыл бұрын
I was having problem understanding models before I saw this video. Now the project I'm pursuing based on models seems like a piece of cake with few hiccups here and there. Thank You so much!!
@Kamran_Sadikhov
@Kamran_Sadikhov 5 жыл бұрын
the cheat sheet is very useful. Thanks budy!
@prettyprinted
@prettyprinted 5 жыл бұрын
Glad you like it. Thanks for watching!
@keerthanaprakash5032
@keerthanaprakash5032 4 жыл бұрын
Thank you so much. This is the best django model tutorial that i have ever watched. Can you please make a video about how to create a user login forgot padsword and registration? Once again thanks for this wonderful video. Its simple and easy to understand for the beginners like me.
@prabinkumarbaniya
@prabinkumarbaniya 3 жыл бұрын
Everything is explained very clearly
@betelhemtesfaye7838
@betelhemtesfaye7838 3 жыл бұрын
Thank you. That really helps!
@ronaldfungss
@ronaldfungss 2 жыл бұрын
Good to know what the created tables look like in the database. Thank you.
@kiyotaka627
@kiyotaka627 3 жыл бұрын
Thanks for this great content
@rajeshvarre7412
@rajeshvarre7412 4 жыл бұрын
Thanks for the intro you made my job easier .Thanks
@yashmaheshwari5640
@yashmaheshwari5640 2 жыл бұрын
good job buddy really helpful....
@lukelewis9927
@lukelewis9927 6 жыл бұрын
I like that you leave in the simple mistakes that I have made and show how to fix them.
@prettyprinted
@prettyprinted 6 жыл бұрын
Yeah, no one is perfect. I don't like to give the impression that you can write code without making mistakes.
@bdkamil95
@bdkamil95 3 жыл бұрын
great teacher! thanks man :)
@connorbrereton5203
@connorbrereton5203 5 жыл бұрын
Excellent video!
@prettyprinted
@prettyprinted 5 жыл бұрын
Thanks for watching!
@takethefirststepsem
@takethefirststepsem 5 жыл бұрын
This is an excellent video.
@prettyprinted
@prettyprinted 5 жыл бұрын
Thanks for watching!
@pradipyash
@pradipyash 6 жыл бұрын
Good video, helped me understand model.
@prettyprinted
@prettyprinted 6 жыл бұрын
Glad it helped. Thanks for watching.
@sabaamanollahi5901
@sabaamanollahi5901 4 жыл бұрын
Thanks a lot! Really helped me out
@prettyprinted
@prettyprinted 4 жыл бұрын
I'm glad it helped!
@sandstorm2048
@sandstorm2048 5 жыл бұрын
Thank you for the video. Very great video.
@prettyprinted
@prettyprinted 5 жыл бұрын
You're welcome! Thanks for watching!
@mzgz4216
@mzgz4216 6 жыл бұрын
Very good video , keep going man
@prettyprinted
@prettyprinted 6 жыл бұрын
Thanks, I appreciate it!
@dayanraj2864
@dayanraj2864 4 жыл бұрын
You are fantastic buddy
@aliakbarhemmati31
@aliakbarhemmati31 4 жыл бұрын
hey man, your tutorial is great. thanks
@prettyprinted
@prettyprinted 4 жыл бұрын
You're welcome!
@dilshadmzery4038
@dilshadmzery4038 3 жыл бұрын
thanks for your best explain
@keerthivasang1178
@keerthivasang1178 5 жыл бұрын
Amazing video ever reg Django. Thank U very much Sir!!!!!!!!!!!!!
@prettyprinted
@prettyprinted 5 жыл бұрын
Thanks for watching!
@swadhikarc7858
@swadhikarc7858 5 жыл бұрын
Very good video. Subscribed in 10 minutes
@prettyprinted
@prettyprinted 5 жыл бұрын
Glad you like it!
@sameergaikwad222
@sameergaikwad222 3 жыл бұрын
Thanks Man :) That Helped Me. :)
@pypro
@pypro 4 жыл бұрын
pretty good video mate!!!
@prettyprinted
@prettyprinted 4 жыл бұрын
I'm glad you like it! Thanks for watching.
@atlasi2002
@atlasi2002 6 жыл бұрын
This was really helpful! Wow! I actually learnt more from this video, than from a course I actually paid for on Udemy!
@prettyprinted
@prettyprinted 6 жыл бұрын
Awesome! Thanks for watching.
@bulldozercmw7070
@bulldozercmw7070 3 жыл бұрын
Very informative !! new subscriber ....
@kayakakulasrinu1353
@kayakakulasrinu1353 5 жыл бұрын
FInally I understood Models ..thank you very much sir....I hope to make more videos
@prettyprinted
@prettyprinted 5 жыл бұрын
I'll definitely make more.
@evileyelivelumix831
@evileyelivelumix831 4 жыл бұрын
Great work! thanks a lot. I followed your code and had a break during the video (closed my laptop), but when I came back, it shows that 'django.db.utils.InterfaceError: connection already closed '. Just wondering how to get connection back? is there any command? thanks
@fideloruko4160
@fideloruko4160 5 жыл бұрын
the first time i tried out this tutorial it was hard ,but now i am able to understand it but i had to first find another models django tutorial from another teacher then compare it to this one. just an advice to beginners dont give up took me one week to get it . i really enjoyed antony's shell than the other instructor
@prettyprinted
@prettyprinted 5 жыл бұрын
I'm glad you figured it out! Thanks for watching.
@rahulhuilgol5304
@rahulhuilgol5304 5 жыл бұрын
Great instruction, Anthony! I finally get the whole idea of Models in Django. I'm still not sure why one wouldn't use SQL to insert data as I come from a solid SQL background. I'm yet to understand how does one balance the power of the ORM and the power of the database esp. with functions, cursors, Procs, triggers, etc. Just voicing out as a beginner. Will mature soon. Thanks
@prettyprinted
@prettyprinted 5 жыл бұрын
Thanks for watching. And the nice thing is you can always fall back to raw SQL if needed.
@loucad5051
@loucad5051 5 жыл бұрын
Really good video, helped me understand the actual representation of the models in the database. I have a question: how would you make it so that the object were created by django itself and not in the shell. Like a button on the website that creates a programming language as the simplest example. Do you have any videos on this topic? Thanks a lot
@prettyprinted
@prettyprinted 5 жыл бұрын
Yeah, any of my videos were I make an app will have the app make entries in the database. Check out my Diary project from last week.
@adeelali2910
@adeelali2910 6 жыл бұрын
keep up the good work
@prettyprinted
@prettyprinted 6 жыл бұрын
Thanks for watching!
@vinayyadav2036
@vinayyadav2036 4 жыл бұрын
This video is really helpful. One question, when you did reverse query, you used '_set', is there other options too other than '_set' ?
@AI_Sutra99
@AI_Sutra99 6 жыл бұрын
Nice video!
@prettyprinted
@prettyprinted 6 жыл бұрын
Thanks for watching!
@saharamanson1970
@saharamanson1970 4 жыл бұрын
Nice bro
@bellcanada719
@bellcanada719 5 жыл бұрын
Hello thank you for the great video. ...I have a django project and it's slightly different from all django project videos I see. ...I have a docs folder right next to the templates folder. ..in the docs folder I have text files. ...when i update or add text document files in the shell console and I follow all your steps to save and migrate and migrations. .it doesn't add the text file to the docs folder and when i look up the words on my browser it only returns the original text files. ..not the text file I added. .....even though if I go back to the python shell console and I can query the new added text file. .it's there.....how can I solve this? ??.....Jessica
@user-sn3mg8wk7v
@user-sn3mg8wk7v 6 жыл бұрын
you really cool, super video, I would like to be such an expert like you! Thank you! The most surprising thing is that I do not know much English, but I still understand you.
@prettyprinted
@prettyprinted 6 жыл бұрын
Glad you like my video!
@AbdulwahedMansour
@AbdulwahedMansour 6 жыл бұрын
thank you for this video :)
@prettyprinted
@prettyprinted 6 жыл бұрын
You're welcome! Thanks for watching.
@AibekToroev
@AibekToroev 4 жыл бұрын
Thank you so much. And please make a video tutorial on creating a Django REST API as a backend and a Flutter app to use that API from the frontend...
@mohammedrizk2042
@mohammedrizk2042 5 жыл бұрын
Really amazing video I just wanted to ask about connecting the programmer table to the company table, how did django know that I wanted the column ID to from the table company to be the foreign key column in the programmer table, and what if I wanted to have a different column as a foreign key
@prettyprinted
@prettyprinted 5 жыл бұрын
A foreign key should be the primary key to some other table, so Django knows to do that automatically. It doesn't make sense to do it another way.
@edgarsanchezprado8879
@edgarsanchezprado8879 3 жыл бұрын
After I saw this I have some doubts, What's it's going to be the best approach? MySQL stored procedures or Django framework? What are the best practices, and what is the more secure option?
@brotherx6205
@brotherx6205 5 жыл бұрын
Great video! I’m working with a situation where I want to change my intermediary table so that it has a “quantity” column for my project. Could you do a video on working with “through” and “through_field” in Many to Many relationships? I’ve been stuck on it.
@prettyprinted
@prettyprinted 5 жыл бұрын
I'll consider that. Thanks for the idea.
@MylesGmail
@MylesGmail 5 жыл бұрын
I tweeted this TY!
@logan5615
@logan5615 5 жыл бұрын
Great Video! thank you. What is the best field to use for String data type. CharField?
@prettyprinted
@prettyprinted 5 жыл бұрын
Yeah, CharField is fine for regular string data.
@santanasta82
@santanasta82 6 жыл бұрын
Nice video! Congratulations to you for your videos! Please, I have one doubt: in the end of the video (35:26), you added the language python to the programmer Stacy. You didn't save it (stacy.save()) but the query returned both anthony and stacy. Don't you need to save it?
@prettyprinted
@prettyprinted 6 жыл бұрын
I should have been a little more clear. When adding to a set, you don't need to save because you're not manipulating the programmer directly but another one.
@rahulparmar208
@rahulparmar208 5 жыл бұрын
Very useful
@prettyprinted
@prettyprinted 5 жыл бұрын
Thanks for watching!
@Denys.Stoianov
@Denys.Stoianov 6 жыл бұрын
Thank you for this video. Do you plan to make a video about using django-rest-swagger?
@prettyprinted
@prettyprinted 6 жыл бұрын
Yeah, I'll add that to my list. Thanks for the idea.
@samucancld
@samucancld Жыл бұрын
Buenísimo loko
@eightsoft
@eightsoft 3 жыл бұрын
Best Tutorial, Thank you very much 💚 by Alimov-8
@abdeldiouf3788
@abdeldiouf3788 4 жыл бұрын
Very nice!! But how do you display the actual names in PgAdmin instead of the Ids??
@xtremehackerzpro9511
@xtremehackerzpro9511 6 жыл бұрын
Nice explanation, does it better to use objects.create() or save() method?
@prettyprinted
@prettyprinted 6 жыл бұрын
For the most basic case, either one works. Use the one you prefer.
@ralpharnold9186
@ralpharnold9186 3 жыл бұрын
I read or try to read books on django. the problem is django structure is a little more confusing as to where to go to find commands and the structure and formate of commands like documentation might show. the thing that I was wondering can you help kind of going through django documentation and books and help us understand the django module commands and structure and the examples in books. the commands to some extent carry over from networking but I think what I need help is how to interpert terms, the examples in the book, and helping us see what they are saying.
@tluanga-ruatpuii-pa
@tluanga-ruatpuii-pa 5 жыл бұрын
Kindly Help me out in modelling this scenario. a student can select 3 courses and list them in a priority order. like option1 , 2 and 3.
@prettyprinted
@prettyprinted 5 жыл бұрын
Add a unique integer field. Have your code update the numbers whenever the student changes the priority.
@leoleos8515
@leoleos8515 2 жыл бұрын
Hi, I could not add records into Langauge model neither by shell nor by admin.Error is no such table:example_language?
@WeAreXplorers
@WeAreXplorers 4 жыл бұрын
how to add style in django template in django.form or any other form in there for django like {{ form.name, class='form-control }} is possible because flask have possible for wtforms if any solution tell me plz... Your video are awesome and very usefull and good explanations thanks for sharing your knowledge
@garrettyoung1223
@garrettyoung1223 5 жыл бұрын
Hi I have a question regarding fields. I am trying to make a page for FIFA that has a leaderboard that will display a class 'Player' as well as a list of game history that shows the score of the game, the date of the game played, and connect the users to the game. What kind of field would I specify for the Game class to show what players played the game? Is there a field that I can input that is Player? or would I use user? or can i only connect the class using their name for string?
@prettyprinted
@prettyprinted 5 жыл бұрын
It would be best to put the players in a separate table if you can help it. Then you'd use a ForeignKey field to connect to it.
@dodokwak
@dodokwak 6 жыл бұрын
Thank you again. Just one question. I tried to follow your code. At 30:12 min I've got the following exeption in cmd: ....creatpsycopg2.OperationalError: FATAL: too many connections for role "iorpplro".. and ...django.db.utils.OperationalError: FATAL: too many connections for role "iorpplro"... What does it mean? It's with my pgAdmin4 connection or something else?
@prettyprinted
@prettyprinted 6 жыл бұрын
Is your database on your local machine?
@dodokwak
@dodokwak 6 жыл бұрын
I have created a new instance on the website ElephantSQL ( free Tiny Turtle plan) and used it for my project.( I have postgreSQL on my machine).
@prettyprinted
@prettyprinted 6 жыл бұрын
Are you saying you created a new instance on ElephantSQL after using Postgresql on your machine, or you started with ElephantSQL?
@dodokwak
@dodokwak 6 жыл бұрын
I created a new instance on ElephantSQL after starting with ElephantSQL.
@danielwanina8429
@danielwanina8429 3 жыл бұрын
Need help with the fields is there another video touching on the fields
@uttukoul
@uttukoul 4 жыл бұрын
when I was trying anthony.languages.all() in my cmd, it gave the output as: . I think it is just showing the language id in the example_programmer_language table. I'm not sure where I went wrong . It could be something very small, but could you help me?
@maxima-4270
@maxima-4270 4 жыл бұрын
you have't set __str__ function at the end of the programmer model
@mi7ai
@mi7ai 4 жыл бұрын
How do you do what you did without the shell?
@yurilegs1
@yurilegs1 5 жыл бұрын
Love your video tutorials! Question, I'm required to use MySQL, is there a service equivalent to elephantSQL for MySQL?
@prettyprinted
@prettyprinted 5 жыл бұрын
The one I used is www.freemysqlhosting.net/
@yurilegs1
@yurilegs1 5 жыл бұрын
@@prettyprinted thanks! I have been trying to connect database on mysql workbench but it is not connecting. I am not sure what I'm doing wrong.. What would you recommend? I also tried using SequelPro but it also doesn't respond like pgAdmin.
@prettyprinted
@prettyprinted 5 жыл бұрын
@@yurilegs1 It could be anything. But if you can't connect through multiple clients, then your credentials are probably wrong.
@edwardmike5253
@edwardmike5253 6 жыл бұрын
i can upload files from templates into db,but how to download a file ,when a button or url is clicked... need that for a simple project am working on for my self..thanks,hope it comes soon...STAY BLESSED
@rachaelamuge
@rachaelamuge 3 жыл бұрын
how can i create relationships among the supplier,loader,customer,admin and the company
@georgieporgie331
@georgieporgie331 2 жыл бұрын
I know this posting is really old but it is a good one. I have a question that I hope anyone can answer here. I am building a mapping tool. It is difficult to create model relationships because the order can be any combination. Ideally, the order is not defined until the user creates it. Which means I have many ManytoMany relationship possibilities. What is the best approach?
@vishwa4908
@vishwa4908 6 жыл бұрын
In PGAdmin4 tables are not showing, but I'm able to migrate and able to access those tables from admin portal in Django, What might be the issue??
@prettyprinted
@prettyprinted 6 жыл бұрын
Are you sure you're in the right database? Every time I use Postgres I have to deal with the other databases on the server.
@vishwa4908
@vishwa4908 6 жыл бұрын
yes, I'm, I don't know somehow it's not showing Tables PGAdmin4, but remaining everything works fine, tables getting created properly .
@BilalKhan-gf1de
@BilalKhan-gf1de 6 жыл бұрын
please do a video on django authentication logging in registration and forgot password and form handling also please if possible
@prettyprinted
@prettyprinted 6 жыл бұрын
I definitely will cover that. Thanks for the idea.
@llamasarus1
@llamasarus1 5 жыл бұрын
Do you know how to alter the table to an already existing database? I want to change the max_length for a field from 100 to 150. I made that change in the models.py and I migrated it and even though the admin is letting me type up to 150 characters I keep getting a database error saying that it will only allow 100. How would you go about that?
@prettyprinted
@prettyprinted 5 жыл бұрын
Updating the model and makemigrations doesn't work for you?
@llamasarus1
@llamasarus1 5 жыл бұрын
@@prettyprinted I'm sorry I forgot to change the environment variable for the database and secret key credentials. Figured it out!
@wer287
@wer287 6 жыл бұрын
thanck you very good explication ...i want use database sqlserver 2008 pre created how i connect
@prettyprinted
@prettyprinted 6 жыл бұрын
I've never tried that, but you can look into this: django-mssql.readthedocs.io/en/latest/
@upcoming6794
@upcoming6794 6 жыл бұрын
FATAL: no pg_hba.conf entry for host "#", user "#", database "postgres", SSL on FATAL: no pg_hba.conf entry for host "#", user "#", database "postgres", SSL off that error show me when I am trying to create serve..in my machine have postgresql install.. what i do...anyone give me any solution.
@apurvchatur2424
@apurvchatur2424 3 жыл бұрын
This is really so Preety💗
@karnobasuseno5695
@karnobasuseno5695 5 жыл бұрын
thanks very good explanation, but if the data contain 1000 row, how to remember PK?,
@karnobasuseno5695
@karnobasuseno5695 5 жыл бұрын
and iam now subscribe your channel !!!
@prettyprinted
@prettyprinted 5 жыл бұрын
You never need to remember the primary keys. It's for the database to use. If you want the primary key for something, you just perform a query and then get the key.
@neurooted
@neurooted 4 жыл бұрын
Hello, I'm making database project using django and i've got a problem. Database stores information about flights reservations and among others i've got 2 entities - AIRPORTS(id,name) and ROUTES(id,starting_airport,destination_airport). I want either starting and destination airport being id's took from AIRPORTS. Is there any easy way to do it, is my idea even correct?
@neurooted
@neurooted 4 жыл бұрын
well i already solved this problem using related_name atribute I didn't make enough research before asking :D
@user-jh5em6qj6z
@user-jh5em6qj6z 6 жыл бұрын
This liked me!
@prettyprinted
@prettyprinted 6 жыл бұрын
Thanks for watching!
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