Building data-driven web apps with Pyramid and SQLAlchemy Transcripts
Chapter: Bootstrap and frontend CSS frameworks
Lecture: Buttons and forms in action
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The next thing we want to do is create a form with a button.
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Maybe some hyperlinks with buttons as well.
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So we'll just create a new HTML page here called "Buttons."
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So we'll start by Bootstrappifying this.
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Of course this goes in your standard and layout page
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and your normal pages don't have to
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to this, it just falls into place.
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But for these little one-offs, it has to be done separately.
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So let's imagine over here that we have a form.
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Its action is just going to be nothing.
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We'll just leave it like that for the minute.
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And its method equals POST.
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And in here, we want to have maybe something
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for your email and your password
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and let's say it's login, okay?
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So, we'll come in here and we'll have
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an input, type equals text and we'll
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say placeholder equals email
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we'll say it's required.
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That's decent.
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Actually, let's hold off on this just for a second.
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Let's see it in its raw form here.
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And let's have another input.
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Make that password, placeholder
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that's password also required.
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And let's have a button, and I'll type equals
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submit and I'll say login.
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And maybe next to this button
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we want to have a hyperlink.
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Where for some reason, if you don't have an account
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we can take you over to the register.
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Okay, if we open that up
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it looks very bad, very bad.
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That looks super old school, doesn't it?
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And of course it's going to look slightly different
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in the different browsers.
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So here's our email, here's our password.
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The placeholders things are working.
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The required thing is working.
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Register works, but of course there's no file there.
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So kind of working, but let's make this look better, right?
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Actually, one of our goals is to make register
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also a button, look like login.
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I'm not sure about really the semantics
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of putting it like that, but just for an example.
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So let's start by saying how does it look
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if we just put Bootstrap.
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Looks a little bit better, right?
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The general text input looks better and so on.
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Let's go down here and just put a little style
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on this so you can see it.
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Of course, this would go in CSS, but just
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for the demo, I'm going to just cram this on here.
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Let's put it at least in the style section
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that'll make me feel better.
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So we'll give the forms a little bit of padding
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to to push it away from the edge.
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Let's also do this, let's say width is 500px.
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I'll say that in just a minute.
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We're going to make it look a little bit better
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but let's build it up here.
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So now we've got the margin is 10 on the input
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and so hopefully that looks a little bit better.
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Let's try, woo, it's not amazing, it's
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nowhere near amazing, but it is better.
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So what can we do with Bootstrap?
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Well, let's focus on our buttons
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since that's where we started.
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I want that to be a button, and that to be a button
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and I want 'em to look pretty much the same.
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So in Bootstrap, a lot of this stuff is done
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with classes, so we'll come down here and say
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that first of all I want to treat this like a button
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so I'll say btn, and then what kind of button?
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There's themes that have different styles.
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Is it like a successful thing
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is it a possibly dangerous thing?
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So you say btn either success or danger
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or default or primary, let's go with primary.
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And then we'll do the same thing
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so this is our button in HTML
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and here's our hyperlink, we'll do the same thing here.
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That one's going to be a successful operation.
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We want to encourage them to register, right?
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Refresh, boom, look at that.
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That's pretty sweet, right?
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This one submits the form, this one navigates away
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somewhere we don't have existing, but whatever.
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You can see these are working well.
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And that's pretty much it for buttons.
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You can have small buttons, large buttons
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different colors, I'll show you a little template layout
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or a table of those and what they look like in a second.
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And let's go ahead and round
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out how these things look, right?
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They kind of look a little bit boring.
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We can do better.
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So over here, we can say a class is a form-control
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and sometimes this goes farther than you like.
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It's slightly mobile focused, it trends
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towards focusing on mobile, so you'll see
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in a second, look at that.
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Well, it's like okay that would be great
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that would look super on a screen like this, right?
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But the way it is right now, not so much.
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Let's do a little bit of help on this thing.
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Let's go put a little class on this
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and just say text-align is center.
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Here we go, that looks a little bit better.
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So this is okay, I like the styles, the rounded edge
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everything looks good, but I do have this zoomed, right?
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There's a non-zoom version.
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Whoops. So pretty decent, but when it looks like this
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not so much, what can we do here?
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Let's go and we'll put into our form here
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a login, that looks a little bit better.
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And maybe we'll even
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throw our center on there as well.
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Let's do one little quick thing
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to make this look decent, I'm going to go
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to the form, I'm going to set its max width
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to be 500px, eh, 450, 450.
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And then if we set the margin
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on the left and right to be auto
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it'll just center that.
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And let's go ahead and say background color
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we can even pick, oh it's over here in PyCharm.
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Let's just create a little border
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be it solid gray, I don't really want gray.
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I just want to pick a color like that.
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Okay, how 'about that, pretty decent.
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We need a little bit more, maybe put 10 here.
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Say margin top is 50px.
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And I've noticed for some reason, periodically
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that if you look at this, these extend too far
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to the right by 10 pixels, so we'll just push them
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back maybe a little bit more, 30, rather, instead of 20.
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There we go, so here's our nice little login form
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and it's looking really great.
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We've got our buttons by just having btn
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and then btn-style, right?
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Primary, success, etc. and we threw
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in some form control to make that look good as well.
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If you head over to the training site, you'll see
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that stuff in action all over the place.
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There's a button, go to login, there's your login.
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Here's your reset password.
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If you want to register, there's your register.
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Little CAPTCHA, 'cause people been trying to hack into it.
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And so on, go to these course details
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and we have still more buttons all over the place.
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This one is a hyperlink, this one
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actually submits a form, for example.
