So first thing, get this data, we’re gonna come into views, we’re gonna have a new variable, or let’s just name this new variable like words. So meet, you see, now you save in a variable key of so meet with all these values. 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. As you can see different data coming from the back end coming from the views are later Well, I’m going to show you how to get all this from database, not just you typing in dummy data or static data. So now this name is given a value of user dot name, which is now coming from the database.
So remember that I said, What if one of us says this particular virtual environments, let’s say we close this command line interface, I want to assert this virtual environment. And then right here, when I press dir, what I did was to see all the files on folders in this particular directory. Just like Django, I think admin start project my project exactly the same thing.
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So we want to check for that want to check if the user is really registered or not. So first, to show these messages we need to do is very easy, we just come up here and say we’ll use a for loop. So since there’s an arrow, which is that the email is ready in USD, so we say messages or info requests email already used. And I said that is our model is this user database to say I want to filter the database unchecked, if there is an email, which already exists with this email that the user just submitted. So this user is this basically this user model a senior and then auth is the function are the methods that allow us to dedicate. So what we can just do is to just simply say, first of all, before we get all these, we want to check if requests, the method is equals to post.
So now for us to read this file, we have to like import it into this our Python file. So whether there is an error or not, this is going to print f https://wizardsdev.com/en/news/quality-backend-is-it-possible/ seven, there is no arrow, it’s print seven and says try is finished. Then the last one I’m going to show you is called Finally, is also a key word.
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This file is just to allow us to do several things in our project, like run our project on the local host. Normally, as a beginner, even as an intermediate Django developer, you don’t want to touch this file, there’s nothing you want to do here. It is I personally, I there might be some developers will manipulate this fiber. This money does py file, you don’t want to touch it throughout your coding throughout when you’re building anything you’re building. But before I do that, let’s bring this project into Visual Studio code.
Now instead of saying if A is equals to true, so we can say, if A is okay, let’s let me specify a variable, let me see. Now let’s say want to add more than one condition, like if A is equals to true leaf a is equals to false. So that’s how to basically use a simple if else statement will also go further. We can also add two different types, like if let’s quickly change this back to integers. And then we have another variable named P and b is equal to three. Now, this concept is very easy to grasp, not only in Python, but in programming in general, there is always if statement, but maybe with different syntax.
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- Now, why is this, I said that it should continue looping brings all the values, but once it gets into that value is equals to j, u, m is once in a loop to this j, you then break, break me stop the loop.
- So name equals input your name and then age will be equals input your age.
- Now let me see a developer’s an IDE sent the message and successfully the message displays is cleared.
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So now, instead of just printing, let’s just say for something like lists in my list, they initially just print my lists. So right now we can have a normal list like my list which can Just a numbers like 1234 I was reprints my list, know that we’re gonna get 1234, which is a normal list. And the final thing I’m going to show you in for loop is that we can also use the else statement. Now once I print x is going to give me a list of number from zero to three. Now we just break, then after breaking, we print values, so the only value I want to print is G because we’re broken when we go to you.
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Now that we have these everything imported, we can now create a class to inherit from this API view, so that we can get a lot of methods that we can work with. Now, for example, let’s say someone, another developer tries to access our API, once it sends a request to our API, we’ll want to give the developer a response want to give him some sort of results. So in this views.py file does where I’m going to code just like a normal Django project. And then what we just want to do now is to install the Django rest framework.
But we can change it, let’s say want to add like age, and we know that age will obviously be an integer, we can just add it here, let’s say it’s a seven. So let me just name this dictionary, my gait, how to write a dictionary, we’re gonna use these curly braces, and then we’re gonna give you the key. So dictionaries are used to store data values in the key value pairs. So right now, anytime we are using this less than or equals to, it has to be as does basically be an integer, we can do less than or equals to four string. So for me to add this calendar codes there, I have to use the backslash. If the type of value is equals to a string, str, then we’ll print.
In views, we’re gonna use something called permissions, these permissions is from the rest framework. But how do we know that this particular data has been submitted into Moodle? And it is why am I getting an error is because right here, what we did was we installed the Django rest framework. So with that API view, we’re going to be able to access a lot of type of API’s that is available in the Django rest framework. So the rest framework provides us with an API view class or function, or whatever it is.
So this is how easy it is to install the Django rest framework, just a simple PIP command. So we’re going to be like get messages slash back end developers, they will say views that get messages and the room gets messages. So once we hit something is gonna send I was it sent without page refreshing is gonna be created in our message database.