Transcript

00:06 [Music]
00:10 hey everybody so in this video we're
00:11 going to be looking at how to upgrade
00:13 your existing Pi version one Stacks to
00:16 Pi version 2 so here we're going to look
00:19 at the demo one from the Pi Project file
00:22 and here already have the old
00:23 implementation and here I have the new
00:25 implementation with pi 2 and we're going
00:27 to look at the differences that we have
00:30 so first off you'll notice uh that the
00:33 syntax and probably the biggest change
00:35 here is the syntax with the
00:37 macros so before when we wanted to
00:40 access the pixels which again is this
00:42 text input here that has the field name
00:44 of pixels you'll noticed that we had two
00:46 curly
00:47 braces uh that syntax has changed and
00:50 now we're going to use a dollar sign
00:52 with single curly braces so uh a minor
00:56 change but a really good one the reason
00:58 this was done was so that we have less
01:00 conflict with um Stacks such as feeds
01:03 and total CMS that use the two curly
01:05 brace
01:06 syntax some other changes that we'll
01:08 notice here um is that the process
01:11 formula as text U that setting is now
01:14 gone um Pi essentially is now kind of it
01:17 added a bunch of smarts to figure out on
01:20 its own whether or not you want to
01:21 process something as text or as a math
01:24 um so that's a nice thing uh that again
01:27 that setting has been completely
01:29 eliminated so if you were using the
01:31 setting before you don't need to worry
01:32 about it any
01:33 longer now in pi version 4 um it had
01:37 three actions you had the ability to uh
01:39 update the HTML edit a form and CSS now
01:43 updating the HTML was something that
01:45 just always happened all the time
01:47 however in version two um if you were
01:50 using that feature basically updating
01:52 something with a class such as this
01:54 pi-r you're going to want to make sure
01:56 that you check the HTML action here and
02:00 then if you had any prefixes and
02:01 suffixes there um that's where you would
02:04 add that and then conversely if you
02:06 wanted to use form we now have form
02:08 fields and CSS uh we have the CSS
02:11 properties as well all of this here has
02:14 pretty much remain the same from version
02:15 one um it's just that the settings and
02:18 the organization of them have been
02:20 modified slightly to be easier to
02:23 use so the last bit that we have here is
02:26 the Syntax for demo 15 um and
02:29 essentially what happened in here is uh
02:32 we wanted to make sure that the syntax
02:34 was kind of similar to what we did for
02:37 the generic macros so here before we a
02:40 we had to enclose this in quotes because
02:42 we had this process Texas formula again
02:45 that's been automated now so we don't
02:46 need those quotes any longer uh and then
02:49 we have the two curly braces and a
02:50 hashtag cities and then here we had uh
02:54 two curly braces with the dot to
02:55 actually put in the city and then here
02:58 we would then close out that Loop for
03:00 cities with a slash two curly braces
03:02 around it not too dissimilar here is if
03:06 we look at the syntax we have an at sign
03:09 with one curly brace and then for the
03:12 dots we again eliminated and went down
03:14 to just one curly brace as well and then
03:16 to close it out we have a one curly
03:19 brace with the slash to close out our
03:22 Loop
03:29 [Music]