So when we are doing the URL mapping, which means when we looked telling Django where all our URLs are all the URLs of our project, and we want to render an HTML page to show for a specific URL, we need Django to know where to locate that HTML file. So now once I print the list like this, I'll just say print. And this test, you should just be docking get to just like either sending a get request. So now we are sending these with the room name and the user name to this check for you. Now, we're in a virtual environment for a while let's move straight to Django. I hope it has been fun to this point for you. I'll just go on to education underscore classes. So if I go to slash anything is automatically going to see that as a room. So once you have your API key, you can continue to follow along. So for us to do that, we're just gonna say name.is, lower. So this is just a boring definition of it. So now once I use plus slash is going to be printed with it. So right here, I just wrote a simple Python code. So this is how to connect Postgres to your Django project. So now when I run these, right here, you see it says welcome join. Ruby 5. So for you to know, if you've actually if you are in a virtual environment, or if the environment is activated, you are going to see these brackets and then the name of the environment in it before the directory. So we can say name is equals to input alkazi, enter your name. And now we are just passing it to the HTML with the features and features. So what I just did here was I said if use that or talk to the future, so this user is this user model, which we imported earlier on. With this words, I say, what's now that this counter as this particular data, these yo yo can get that data. Now we want to use Ajax also, again, to load these messages data in real time. Now that we have these opened, we know that the name is my projects, where we can just do is open schemas. But let's say we just want to pass in an integer or a number. How to Become a Python Back-end Developer - Pythonista Planet So we can remove the quotes and just type the name of the variable which is name. So if I just press A Backspace, now, this is out of this function. So let me just quickly open up my python shell. So right here, we can just passing no more number two, and number two as three s3. Backend Web Development with Python - Full Course - freeCodeCamp.org Then pressure, which is DS unlimited D so ever these which we need. But if we do that, once the user updates or create a new message is not going to be updated in real time. So I can go into that folder I think is to F toots, then Chang, ti F. And then once I select that folder, obviously VS code is going to open that up. So let me first of all, wait for that to load up. In this part, we're gonna be doing a simple Python exercise. So this is the way it works, the user comes to this URL, and then it sees that it needs to go into views, and look for look for a function or a class or whatever called index. So this path is gonna be the path for the room, it's gonna be the URLs for the room. So since I'm on a Windows, I'm going to download the one for Windows. So we can pass in name can also pass in age. Now this you run our project on the localhost 8000. Now, let's say we want to get only the end of this list. So now we still have a user, let's flush every single date. So what I just need to do now is to make sure that user should be able to click as you can see, now just plain text is I can't click. So our simples are try to pose a created on posts. Now we come in here, we should have that one page here. So we can see that the website loads successfully. And theme is the value assigned to this name. And then in settings.pi file, we're gonna scroll down to where we see templates. So we need to come into weather detector, which is our main project. But in Django, each model objects as an ID generated one if a new object is created. So I think is because there is no supposed to be case. Before we continue, we need to run migrations. So now we have the string, we have an integer, if I print these, okay, this gives me four. Let's give it a few seconds and Yeah, good. So in pop, we're going to say list dot pop just like pop out to remove something. So we said while i is less than six, so that means it should move to this block of code the printed I, then after that we incremented it, there, now i is equals to two is still less than six. So if you're on a Mac, what you need to type is LS. Religious safety safeties, and good test it out. And then the data is just basically what the data user name with the image tag of username, room ID, and then the message. But once we get the ID is gonna be passed in this URL from the URL is going to be passed. We'll say for message a messages, like an H five, that just showcase the message. So that's iterating over words over a list of values. And then now I can just say, admin does, sides does register. So we're importing every function which we have in this file, every class anything we have in this file, why putting it into these URLs with pure. So later, you're gonna see why we will give a name for now we'll leave it like that. So I'm going to request for its request that gets that gets, Shall we do it. First of all, let me import render, say from Django dot shortcuts. So we can also use a class to do something like that. Now any external file we use is our static files. But they don't allow duplicate, not liking lists are tuples, that you can type in a value more than once in dictionary, you can do that. And then we'll say the name of the virtual environment in Mr. So this is just the job Go official site. So because this is not seen as a as an integer, we can do this. We do the same for the third line, we'll say name. Oh, so we're gonna come here so it's safe on Nana it also cuz I guess it hasn't updated. But what if the user is not logged in what the visuals are random guest user visiting, then want to have another statement. So let's just come on to the top here and print something like that. So that's why it gives us this arrow dots post object is not iterable. Two if statement is basically just giving Python a condition. First of all, import or say, from dot models, import posts. And then when you come back, you want to give a response or you want to return like a feedback, you want to say what you want to get, or the task which you executed. Now this is quite self explanatory, when clicking allow any just allows any access, this isn't strictly required. What we just want to do now is to go into that template folder, and create a new file named index dot HTML. And our code is going to be run in this terminal. So now he's gonna print Yes, it is because pianos name is obviously equals to john. But before we go ahead and do this, what if the user provides wrong information, which is not on our database? So by just creating a class, and then we can just name it, whatever we want to name it, let's say like, let's come into this come right here. So this form is a post form, as you can see, using the POST method, in Django, anytime we're using the POST method, we always want to make sure to add CSRF token, something like this. Highly-curated content. And I want to add nice, he says 23, which is very wrong, two plus three is supposed to be five. A leaf means require adding another statement is the same thing as if both else if does mean you have if so if a is not true, then you cannot check if A is false. Over there, what I just want to do is to see what does look out requests. So just the way we did something like this check view, remember, so this check view first checked, if that room is available, or not available, then before it did whatever it wants to do. So we just want to have like button year where do you say get started and actually log out once we click on it. Now, we can also, instead of having the break here, I can do something like this. There are counselors out there, but for this tutorial, we are going to be using Visual Studio code. authentication, token, authentication, this is what we need. So you're going to see what we're gonna do. So user name should be because now let's just go back and listen to a storm. Now return statements are just being used to get a response from the task being executed in a function. And nowadays writes full text that makes sense to say, A, you good. So there's a difference between the clear function and the Delete function. Now does how to get the remainder of a division will also convert a number to a string. So it's quite different from normal for loop in Python. So now if we think about it, it let's say we have all this coming from our database. But when we come here on each refresh, we're gonna see one more minute. Any time we add or change anything in these modules with pure alpha, they will come in now I removed this detail attributes, or let's say we add another attribute, we need to come in and do this two step again, my make migrations and migrate. As you know, we did this for the text document, which is dot txt, you can even use a Python file to open a new Python file. So meet, you see, now you save in a variable key of so meet with all these values. That is all the HTML files we're gonna use in this project. Now you see it says it gives us this error. So now you see it says the value in the URL is 12. So let's say for for now you see we have Hello, and then we have the answer of the audition. So that is how to use return statements in a Python function. Now as I bring these you see it says name, age. And then we're just going to use name, you can make this name anything you can name it index or own, but is advisable to name it the same thing, your name in that particular URL, so you don't get confused or stock, or just get some kind of errors. So now anything we input is automatically seen as an integer. So right here, this is where we need to do some work. If you know HTML, you know that there are two methods when you're submitting a form, which is get under post. And then we're going to test the API in which we just created. And now I just want to opened up project I just created in my VS code. So now we have the amount of words present in what the user root. So for us to do these wants to do, we're going to say, try, like this, that oh, this is gonna be in try it after it, we're going to say, except, don't, we're just going to print value, not an integer. So since we're using an integer, let's add a comma here, like this. And then right here, when I press dir, what I did was to see all the files on folders in this particular directory. And I have to add this app I created which is posts, you have to add it there. So now these UCC supplies are created successfully, what I just input I can, does not be created successfully. But we'll also is an API view, we want to obviously send a response. So what is going to be happening is that a user is going to input a sentence. So right here, you can see that it brings out the virtual environment back that showing that we are in this virtual environment. Let's go into URLs, we need to have a new view for getting all the messages. So as VS code is doing its magic, let's go back to the command prompt. So that value want to give it so models dot character field, also, Max land, so a message can have up to like a million characters. Now when I run these you see now and that is brings me only United Kingdom. So let's make sure we have Django installed. But when I click on it, it still goes through that same age, whatever. So we need to import JSON to be able to actually get and then you know, pass or filter this data. Now, we're gonna take some of the features we've learnt in the previous parts, and then with some new features, and then we're gonna use it to build a very simple word counter in Django. It's just the basic, the basic fixture in our blog is the crud functionality, which is create, read, update, and delete. So what we can just do is right here can just see the user name should be equals to request dot bulls And then username. So now this will show light as we register in admin panel. Now, what is this static files in Django we're talking about is any external file that you use in your template file. So this room is going to be like, we can use another Django model, like a relationship model, like the many to many of you the foreign key to link this with this room. So right here, we're gonna have another scripts. And if you watch this video to this particular point, I appreciate you because not everyone watches to the end. Now you see, like, if you scroll up, the shows me name arrow name is not defined. So what we're doing now is that we're saying Ajax, and then we're saying the type is posts normally weren't using Ajax, we know, well, we're gonna use something like method. So you know least which we talked about in the last but topples are very similar to lists. So, as you can see, it says creates models to dent biologists guide and migrate. And so this is just going to install Python on our machine. So a class is like a construct of different objects on the class, we have various objects. So can the data type as a list like this, so we can see, one of his friend is Peter. Let's go into a file called Moodle dot viewer. So it's intuitive, it will be different for every single person. Now this unbundle Kira always happens, anytime you are using an if statement, and there is a variable been assigned without adding an else statement. So we know that the index number of this is one of zero, which is the first one, then we also want to get the face value, which would be zero. So right here, what we know is the name, we have an ID and then the details of the fixture.
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