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Welcome back.

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Let's now go over the solutions for the simple project.

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Keep in mind there's many ways you could have approached this.

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This is just one example solution.

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Let's get started.

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All right here I am at my text editor.

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I've gone ahead and copied and pasted the skeleton code from the simple project that you were given

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to start off with.

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We have some things to do here such as filling out the view functions for the index page and the report

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page.

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We're going to first set up our templates.

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I'm just going to quickly create some new files here so I'll say underneath templates.

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New file will start off with Bates thought HVM T.M..

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This is where navigation bar is going to go and we're going to create two more files here.

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One will say is the index page index the h t m l and then the other one will say this is the report

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page.

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So will go ahead and call this something like.

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Report the HTL essentially saying what we passed as far as the requirements.

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Lets start off by filling out our Based on each team l file and I'm actually going to copy and paste

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this from our notes or a provided solution may collapse this bar.

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So just copy and paste this but it's actually nothing we haven't seen before.

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It's essentially the links to bootstrap over here on the top.

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I set the title to Papy years in namecheck and then I set a navigation bar appear essentially the same

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navigation bar.

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The only thing to note is that I have a pro forma index page linking to home page as the brand.

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So that's the home page button on the brand page and then we see here we have a content block and an

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end block.

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So I'm going to be able to extend my base HTL and call these blocks.

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Let's save that.

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So our main base that each symbol is done.

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Let's set up our index page so come over here to my index page and I'll say extends and I'm extending

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from baseline h T.M. that will color block content and then we want to insert some things here.

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So I set up a Jumbotron to hold everything and this Jumbotron you can add as much instruction as you

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want but basically I'm going to say please provide a username that meets requirements so I won't bother

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to listen the requirements here since we already talked about that in the previous lecture.

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Instead we'll move on to focus on the form so we need to create a form here.

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We'll see form and I won't bother giving a class and we can't remove method here.

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The thing I want to say for the action is to go for the report Yoro.

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So we will say inside of this your L for and then we'll passen report.

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So once the person hits submit it'll take him to that report function.

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Let's create a simple label will say this label is for username and then the actual label just say username

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and then we want two inputs one for the text that the user name.

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So we'll say this is user name doesn't need to have a value here.

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And then finally will have a submit button so will say input type is submit an doesn't need to have

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a name here.

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We'll go ahead and give a value of submit form.

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All right.

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So that's our form ready to go.

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The solution has some extra explanation as far as what the requirements are.

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But since we are to discuss those we don't really need them here.

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And then the report that each team page is actually going to be some more logic to go into this report

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page.

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So let's first sync up and link the index page by coming back to our basic thought py file.

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So there's the home page and it should have the form to start by setting up my imports will say here

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at the very top.

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From flask import and I'm going to need flask.

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Gonna need to render some templates and then I'm also going to need to use request to actually grab

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the information from the form that the user provides.

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Then will say app is equal to flask and I will pass in my name variable there and then for the index.

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I'm just going to return render a template and I will render my index thought h HTML or whatever you

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happen to call your index that it's HTML file.

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Ok so now I have this page which is for reporting after the form.

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So here is where I'm going to need to actually have some conditions check to see if they're met and

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then I'm going to send back some sort of code to my template.

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So let's start filling this out.

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Notice there's a lot of different hints here.

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How to check if lower case letters exist or how to check if the last letter is an integer.

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So lots of different options there.

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Again there is essentially an infinite number of ways you could done this report check.

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I'm going to clear all this information first and set up the logic so I know I have three conditions

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would be good is to have three booleans that start each as false and then we send them back to the template

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and if they're all true then we can actually start making some logic here.

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So we'll say lower letter is equal to false.

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So that's the lower letter check and we'll have a very similar one for upper letter so that equals a

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false and then we want to make sure it ends and the numbers will say numb and.

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And that's equal to false.

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Next we want to actually grab the username from the submission of the form so I will set username equal

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to request dot ARGs that get Remember I called it user name over here on my index page.

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I have the user names.

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That's what I want to grab and then once I grab that username I can begin doing those checks and the

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logic was actually shown in those links.

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Again he did have to do it this way.

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This was just if he did a quick stack overflow of how to check of lower case letters exist or upper

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case it would have given you this code right here.

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So we can check if any see is the lower for C in username and what this is doing.

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It's essentially just saying all right C is not lower.

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So is this character lowercase for every character in the username and check if any of them are true.

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This is a more advanced one liner way of doing this.

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There are lots of other ways you could done this.

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For instance you could have said a four letter in user name if letter dot lower is equal to letter then

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you know you have a matching lowercase.

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So you have a lowercase there somewhere.

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So that's another way you could done it lots lots of different ways.

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So don't worry too much if this logic doesn't make sense to you and you for your own logic there are

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a ton of different ways you can approach this.

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So I just want to make that clear.

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And that upper letter is actually the same as this instead of lower.

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You say is upper again essentially just a simple Google search would have gotten you those stack overflow

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links.

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There were hints and then for checking if the last character is an integer.

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One way to do that is grab the last item of username and then say is it OK.

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So all of these return back booleans in one liners.

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You did have to do in one line.

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This is just kind of one of the more efficient ways to do these checks by leveraging stack overflow

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answers that have already shown us how to do the work that we want to check if they're all true.

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So I will say a variable called Report to check if all these booleans are true meaning will say lower

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letter and upper letter and none end because remember the result of all of these is that they're going

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to be true and false.

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So this is basically asking Are all of these Blands now equal to true.

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They start all as false and then after the user provides their user name we do the checks for lower

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letter upper letter and end and then we decide is report equal to all true.

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Then we can finally render a template soul return rendered template and we're going to pass in our report

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that each T.M. And let's send some stuff back.

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We'll start off by sending back a report.

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So whether or not it passed all the cases and then if it didn't pass the cases we can send back reports

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on lower letter upper letter and them end to tell the user which use cases than in past.

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So say lower is equal to lower letter than we'll say upper is equal to upper letter and we'll say numb

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and physical to numb and all right.

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Save that.

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So now we're sending back our full report to the template as well as the individual use cases or requirements

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that it did or did not pass.

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So now let's go back to our report that each team EL are going to extend from baseline each.

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And let's make sure we did that in our index page.

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Yes we did.

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Perfect.

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And let's set up our block.

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So I'll say block and then content.

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I'm going to set up a Jumbotron to kind of keep the same look and feel throughout the pages and then

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we'll say Let's check your username and this is where we begin to start using that control flow logic

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of our templating so we can say if and then I have an automatic and if

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so over here I'm going to say if reports remember a report is checking if all the conditions are true.

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I'm going to just say paragraph your user name passed all checks

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and then here are going to have an L statement else.

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That means some of the cases did not actually pass.

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So let's go ahead and build a bullet list of what cases were not passed.

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So we're going to have in other if it's all say if not lower

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than we can say just a list item here you did not use a lowercase letter

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and then we're going to do this for essentially each of the conditions.

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So let's copy this and paste this.

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So if not upper remember repassing in lower and upper if we go back to they start pi.

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That's the actual parameters are passing over here.

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So say if not upper You did not use an uppercase letter.

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And then finally over here if not numb and we'll say you did not and then a number

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there we go.

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So this will build out a bulleted list for each of these three conditions that were not passed.

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Again lots of different ways could have done this if you didn't want to use the not here you could have

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just set the reverse boolean values for a lower upper end to say something like If lower than do that.

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Or if Upperton do that.

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So keep that in mind lots of different ways to do that.

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Then finally we have an end.

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If this else Lotus is going after my unordered list here I'm going to zoom out just a little bit so

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we can see the whole page.

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So let me zoom at just tiny bit more.

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We have a jumbotron.

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We're checking the user name and saying if the report fully passed that we have all the checks else

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then we're going to build out list items for each condition.

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So that's for the lower case condition upper case condition and name and condition.

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OK.

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So let's save this and make sure it all works out for us.

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We'll say Python basic about pi and looks like I have a typo somewhere.

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And I say app not the fine.

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So let's go back to basics not pi.

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I still need to fill in this.

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So looks like I just did this say over here.

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App run debug equals.

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True.

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That should help us debug this case.

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I made any errors.

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Let's run this again.

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Let's make sure we set our app.

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All right.

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Our app is set.

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So let's save those changes.

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Run this again.

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All right.

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So it looks like it's running in my browser.

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Let me bring in my browser make sure we don't have any issues going to bring this in.

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I'm a little zoomed in here so please provide a username that meets requirements.

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Let's try it out.

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First start off with a name that doesn't meet the requirements for uppercase or the number and then

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hit submit form said you do not use an uppercase letter is not in the number.

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Go back to the home page.

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Let's try all uppercase.

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You don't use a lowercase in a number.

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Let's finally try one that works.

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So we'll do rufous one hit submit form and it says Let's check your user name user name passed all the

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checks.

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All right.

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And that's really all there was to it.

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Again really combining a lot of the ideas that we just talked about in the templates.

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Talking about connecting the templates of rendered template talking about actually grabbing requests

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are elements from the form then doing some logic inside of our flask application.

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Returning back variables and then also template control flow.

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So essentially combine all the ideas of what we just talked about throughout the previous lectures of

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the template.

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Now it's time to move on to the next section of the course where we talk about forms.

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If we look back at the forms we're building out here we're still building out forms that H Tim L and

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there's many libraries in flask that actually allow us to leverage the power of Python to automatically

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build out forms in our flask application and send out simpler templating instructions to our HTL templates.

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That's mainly we're going to be talking about in the next section.

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So I'm excited to get started with it.

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We'll see you there.