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Hello, friends, in this video, we shall see the form a tribute of the request object in a flask application.

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When the e-mail form is posted or when inside the e-mail form, you give the different form, attributes

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like matter is equal to is one attribute and action is equal to another attribute.

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For instance, have a look at this line of the e-mail form from action is equal to this is where the

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data is to be directed or said this is where you are and to which it is to be said and which is the

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method to use the method to be used is written as that would of method is equal to in this case it is

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being used as post.

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So this is the beginning of the formal declaration and this is the end of the formal declaration form

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between which.

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Different form elements are used.

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In this case, the former elements are nothing but just for text elements, are there input Irish politics

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four times?

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Do you see that they are being written in the name of the former element, is written by name, is equal

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to attribute.

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So name is the label.

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Input to the text name is called the name.

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This name is what the name of the family name is called Physics Chemistry.

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And so therefore when this e-mail page is open, what will be rendered on the client browser, it will

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just have a form of it for next week's each having a label like name, physics, chemistry, mathematics

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like this.

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And then at the end of that, the form there is a submit button so that when the submit button is clicked,

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the form the will be redirected towards this.

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You are it.

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What is this you are which going to localhost five thousand with the two words that you are, it will

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be redirected to use this post.

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OK, so in order to process this data, what I would do, I have to define this URL and map that you

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are all with a certain view function and that function will process the form data.

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How.

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Like this, this is the pattern you are defined as a result because that is where the data is coming

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and the map of the function.

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If the request documentary is equal to post, then what has to be done?

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The data collected, which is where it is collected, it is collected in that we would call that request

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not form.

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That result is stored in addition to the object called a result.

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And that dictionary object is used as a barometer to this render template function.

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So this render template function will render this table that estimate and.

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It will take up the reserve parameter, and that is barometer out process, that result parameter inside

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the template code off, they will not estimate.

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OK, so third parties, this template, remember that this table, that esteemable, should be stored

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in a template for them.

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So in that template folder, this table or the estimate, is that what it is doing?

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It is just iterating over the result object with the help of IT writeups functions, it will form an

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iterator over the dictionary object.

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You know that the dictionary object is a collection of items and each item is having a key and value.

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So for each key and value for this, it is starting a table.

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And for each value of these key and value, those key and value of first items, second, third and

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so on, all these items will be placed in a room.

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So at the end, what you should see, you should see the table XHTML table being rendered on the client

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browser with all those four parameters name physics, chemistry, mathematics and values such like they

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will be generated when you execute this.

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So what we have we have all these three components.

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One is the form estimate form second and the third is the template.

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So I'll show you these three ingredients of the code.

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Put it on at one in one application folder.

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Execute this Python script.

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The server will run in, fill the data in the form and see that the table is generated.

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All this we will see with the help of a practical example in front of, you know, using this example,

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we shall now see how to send an e-mail form data to a particular you are, which is defined by the root

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decorator in your application.

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So to start with, you have to import all the required, you know, functions and classes.

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As usual, you needed.

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Import the flask plus.

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Because you want to render the template.

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The render template function and also import the request object.

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OK, so this Python script actually has two rules, which are different.

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One is this backslash you are in.

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And the other is the result, you are Elwick.

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The root function root matter, rather, while dividing these slightly children, also takes one more

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argument, which is the methods, argument and methods have been or any of these two methods, subject

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matter can be, uh, you know, applicable or acceptable to this particular.

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It is Arturo.

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Of which we are.

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Basically interested in what happens if the metal is pushed so that.

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Afterwards, initially, when the server starts and you gather you are in your browser like localhost

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5000, slash the bone function here is in this case to run this interview function and then this function

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is executed.

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A student or e-mail template, which obviously must be present in the templates folder of your application,

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will be rendered, what is this student body?

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It is a simple form in which some data can be entered that we shall have a look at it afterwards.

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Right, so start the server unit slash backslash, you are in this template, will you render it will

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generate a form so the user will now enter the form.

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So at this juncture, shall we see what is the form?

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This is a simple form in which three text inputs are, you know, the reader input type you can to text

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that, read the text box.

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Three, not three or four, rather, one text box or name, physics, chemistry and mathematics, and

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and then there are of course, there is a submit button.

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So importantly, this all.

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Input types are present in the form whose action?

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Attribute is directed towards a you are in local fighters desert.

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And the is pushed.

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So this is as simple as you will see, a very simple, stable form that was created and this student

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body is put into the templates folder.

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Now, coming back to this Python script.

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This is the result you are in, which is used as the action attribute of the former.

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So what what what does it mean when you click on the submit button, the form will be posted to this

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desert slash result, you are ill and since the scenes in those days will call you the mythological

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post.

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So the data will be received by this result.

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You are in the post ometer, so the associated function you function is.

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This will be executer this statement is true.

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Requestor method is equal to post.

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So therefore, what will happen?

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It will fetch the entire data from the.

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From.

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Using the request not from.

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Mr..

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And what did we contain, it will contain all the farm data in the form of a dictionary object, and

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that object will be called reserved.

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Right.

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So using this result dictionary object as a parameter.

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The another template result, Estevan, which is also present in the template for folder, will be rendered

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by this result function.

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So render template result that e-mail.

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What is there in the world today that we shall see, but it will.

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The result of the e-mail template will be provided another parameter or attribute result is equal to

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what it is.

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This is the.

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Name of the dictionary variable.

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Rather, this is the barometer to be provided to that template and this is the dictionary object reserved.

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This is the result that have been defined here.

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So, in effect, what is going to happen as this of starts, a formidable display form will be filled

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by the user submitted to this result.

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And it will fetch the entire form data into the desert object, and that will be rendered to this Liselotte

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estimate.

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So finally, what remains what is present in this estimate?

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So this is the result of a stable template starts with the mandatory DOCTYPE e-mail tag.

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And this is the rest of the esteemable, this is what is the.

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Ginge to templated.

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Uh, you know, instructions.

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So all those.

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Conditionals, explanations and loop statements are used or written in this case, the curly bracket

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and.

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But since nine, on one hand, on one side and percent on the and the writing on the record in between

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these, you are writing it for Luke.

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And these four loop were result, not ITR items, what is it, what items it will fetch an iterator

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for the dictionary object called isn't so it items from a third of the dictionary object is used to

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return any tretter.

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And you know that the dictionary object is a collection of items.

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Each item is a key value pair.

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So for each.

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He will appear in the end result of what we are doing, you are just putting the value of key and value,

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key and value are put into the.

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Roll off a table in the first sale of the roll, your display in key, second sale of the role, you

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are displaying the value.

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So all the text boxes that you enter name physics, chemistry, mathematics.

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The.

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Names of the keys and associated values will be displayed in the table, so as a result, what you should

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see, you should see a table being generated on your.

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Brazil.

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OK, so these are the three parts, one is the Python script, which is a flask sort of application,

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second is the form and third is the template.

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So let us see one by one how.

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The result ultimately comes onto your browser.

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So first, let me.

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You know, started this battle group, formed DataDot Pivo, in which the two are slash and slash result,

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are defined their bond with two functions one one first function is.

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You know, displaying the form and the other is displaying the result.

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Of the.

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Formed a tie into a table, so start the server.

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And go to the browser.

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So the brother is.

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Here and just you know, you are a local news veteran, backslash Delenda the form.

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Under the data.

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And.

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Press the submit button, what happens, the form that will be posted to the result?

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You are in the associated review function will fetch the form databasing request or form in addition

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to the object.

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And that dictionary object will be rendered by result of the activity in which there is a danger to

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template code which runs so far.

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Luban generates a table.

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Like this.

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And this is the final output of our entire flask application activity.