| Thursday, May 12th, 2022, 00:13 UTC | ||
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| [12:52:29] | peterbennett: | Good Morning |
| [12:54:11] | stuarta: | afternoon |
| [12:54:37] | peterbennett: | good day |
| [13:14:32] | peterbennett: | stuarta: Any ideas on angular debugging? When I did the tutorial I could just run debug from visual studio and set break points etc. In the backend project it runs from there but does not debug. |
| [13:15:37] | peterbennett: | stuarta:Also How do I see messages from console.log? In the tutorial they came in a visual studio window. |
| [13:21:55] | stuarta: | are you running ng serve in a VS terminal? |
| [13:22:47] | peterbennett: | I did try that. Currently just running it in a normal terminal |
| [13:23:00] | stuarta: | i don't think there's much difference |
| [13:23:17] | peterbennett: | When I select debug or run in VS it does run it in a vs terminal but debugging does not work. |
| [13:23:49] | stuarta: | tbh i've not actually tried. console.log() turns up in your browsers web debug / console |
| [13:24:38] | stuarta: | lemme try a debug start and see what it does |
| [13:25:16] | peterbennett: | I did not see the console.log in the browser debug console |
| [13:26:46] | peterbennett: | OK I got the console log on tyhe browser debug, so at least I can log some values to see what is going on |
| [13:27:03] | stuarta: | umm, why is the debug session attemption port 8080 when a normal session runs on port 4200??? |
| [13:27:49] | ** stuarta notes it opened a config file where the default was :8080 ** | |
| [13:28:21] | peterbennett: | The npm install sets some strange things in .vscode directory, so I coped from the tutorial app which has the correct port |
| [13:29:55] | stuarta: | so got debugging working, not entirely sure what it gives you over and above opening a web browser against :4200 |
| [13:30:23] | peterbennett: | can you set breakpoints and have them work? |
| [13:30:40] | stuarta: | oh is that what you are meant todo ;-) |
| [13:31:05] | peterbennett: | Yes that worked in the tutorial without any effort but not here |
| [13:31:29] | stuarta: | i've never used that at all |
| [13:31:50] | peterbennett: | Anyway, if you have not used that I will either figure it out or do without (probably the latter) |
| [13:32:23] | peterbennett: | Not that useful since so much takes place in the background so there is nowhere to set a breakpoint |
| [13:33:09] | stuarta: | out of interest what are you trying to debug? |
| [13:37:02] | peterbennett: | Well I created method getMiscellaneousData in setup_service.ts. I have a member miscellaneousdata that it wants to fill from the api |
| [13:37:18] | peterbennett: | However the values returned seem to be 0 |
| [13:38:08] | peterbennett: | There is a subscribe to the observable with a lambda that sets the value |
| [13:38:15] | stuarta: | sounds like you are looking at the data before it's arrived |
| [13:38:31] | stuarta: | have a look at the testbed code |
| [13:38:48] | peterbennett: | Well the property is initialized to 9400 and getas changed to 0 |
| [13:39:16] | stuarta: | ok, and you are using Observables? |
| [13:39:39] | peterbennett: | Anyway, I though that with the way this stuff works, even if it is displayed as zero, once the observable sets it to another value it will change on screen. |
| [13:41:15] | stuarta: | so the observable is either waiting, or contains data, hence things like <ng-container *ngIf="(m_categoryList$ | async) as categoryList; else loading"> |
| [13:41:56] | stuarta: | now if you are running the function that updates the observable from ngOnInit() then it's only called once |
| [13:42:23] | stuarta: | if you expect it to be updated, then you'll need to call the function that updates the value |
| [13:42:48] | stuarta: | which is what the buttons on the testbed do |
| [13:43:23] | stuarta: | they just run a function from the class when clicked |
| [13:43:51] | peterbennett: | It is callng from the field definition so I don't have to use the ! syntax for an uninitialized variable |
| [13:44:05] | peterbennett: | miscData: Miscellaneous = this.setupService.getMiscellaneousData(); |
| [13:45:26] | peterbennett: | I see 6 calls in the backend log so it is getting called. |
| [13:45:46] | stuarta: | ah so in the constructor. so every time that constructor is called, that function will be called |
| [13:45:52] | peterbennett: | Anyway, by playing with it I will sort it out and learn what is happening (I hope). |
| [13:46:33] | stuarta: | if this.setupService.getMiscellaneousData() returns an observable you'll need a subscribe |
| [13:48:34] | stuarta: | if you post your setupService class somewhere i can take a look if you want |
| [13:48:51] | peterbennett: | this.mythService.GetSetting({ HostName: this.m_hostName, Key: "HDRingbufferSize" }) .subscribe(data => this.m_miscellaneousData.HDRingbufferSize = Number(data.String)); |
| [13:49:31] | peterbennett: | No don't worry I will sort it out. This was just a general question of how to use the debugger and the console. |
| [13:49:45] | peterbennett: | If I hit a wall I will ask you |
| [13:50:26] | stuarta: | no worries, the main thing is understanding the time of the existence of things. ie when the page first renders, the data isn't yet ready = loading.... |
| [13:50:45] | peterbennett: | Yes maybe that is my problem |
| [13:51:57] | stuarta: | that's the problem that observables solve |
| [13:53:18] | stuarta: | eg https://github.com/MythTV/mythtv/blob/master/ . . . t.ts#L58-L65 |
| [13:53:56] | stuarta: | where the second call is "chained" after the first, because it needs data the first provides (ie. m_hostname) |
| [13:54:47] | stuarta: | pipe & tap are analagous to subscribe, although i find them more flexible |
| [13:55:43] | stuarta: | tap() is especially nice as you can drop in a lambda function to do whatever |
| [13:56:47] | peterbennett: | ok thanks |
| [13:58:10] | stuarta: | back to your code snippet above, at the time the constructor is run this.m_hostName = "", and it's not updated until ngOnInit() in the lines i just referenced above |
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| [14:34:34] | stuarta: | peterbennett: i forgot to ask, are you writing a component? |
| [14:35:10] | peterbennett: | Yes I am filling in a stub component that Paul genartated |
| [14:35:52] | stuarta: | ah right, cool. fyi please use the framework whenever you need to generate a new component. it saves a lot of time and keeps things consistent |
| [14:35:57] | peterbennett: | I think I know the problem – stupid mistake – these are global settings not host based ones. |
| [14:36:22] | stuarta: | ahhh, so you need to pass '__GLOBAL__' as the hostname iirc |
| [14:36:32] | peterbennett: | Right |
| [14:37:17] | stuarta: | unless there's a more appropriate thing to put in for hostname? |
| [14:38:17] | peterbennett: | the api uses '_GLOBAL_' and the database uses null |
| [14:38:36] | stuarta: | ah, knew it was something like that |
| [14:43:22] | peterbennett: | Yes that fixes it |
| [14:44:08] | stuarta: | yay \o/ |
| [14:45:33] | peterbennett: | Also – I checked – if the server is slow, when the response finally comes in, the screen redraws the value |
| [14:45:49] | stuarta: | great, that means the observable is working |
| [14:45:58] | peterbennett: | I stop the server with control-Z then resume with fg |
| [14:46:08] | stuarta: | (i see this the most with guide data when at the other end of a slow connection) |
| [14:46:28] | stuarta: | takes ~20s to load a 2hr slice of guide data for 93 channels |
| [14:46:36] | stuarta: | =very slow |
| [14:48:18] | peterbennett: | Hmm yes I have the same thing going on with leanfront loading the guide but it is not that slow – I load 3 hours wortth and a lot more channels, takes a few seconds |
| [14:48:52] | peterbennett: | The guide in localhost:4200 only taking a second or two |
| [14:49:23] | stuarta: | yeah that's pretty fast |
| [14:49:37] | peterbennett: | I have 737 channels |
| [14:50:03] | stuarta: | that's quite a few |
| [14:50:16] | peterbennett: | This is my test laptop system so I have all the channels selected, I do not actually get that many |
| [14:51:40] | peterbennett: | Actually I see a lot of them don't have data |
| [14:52:23] | stuarta: | i use a random m3u list for my "channels" |
| [14:52:25] | peterbennett: | I think I misspoke it is only loading data for a coupl hundred of them |
| [14:52:42] | stuarta: | you should see the underlying data in the console |
| [14:54:20] | peterbennett: | Actually 276 channels have data |
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| [15:45:22] | DevMythNotifyBot: | COMMIT: paul-h pushed 1 commit(s) to branch master: https://github.com/MythTV/mythtv/compare/7abd . . . b2fda963e9ef |
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| [17:03:14] | DevMythNotifyBot: | COMMIT: bennettpeter pushed 1 commit(s) to branch master: https://github.com/MythTV/mythtv/compare/b2fd . . . 1adee9811160 |
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| [18:50:31] | peterbennett: | I added a new import to primeng.module.ts. Do I need to commit a new build of web app? When does that get done? |
| [18:50:31] | peterbennett: | . |
| [19:01:14] | DevMythNotifyBot: | COMMIT: kmdewaal pushed 1 commit(s) to branch master: https://github.com/MythTV/mythtv/compare/1ade . . . f2bc5e08400d |
| [19:11:40] | DevMythNotifyBot: | COMMIT: rcrdnalor pushed 2 commit(s) to branch master: https://github.com/MythTV/mythtv/compare/f2bc . . . ee55ad0cf476 |
| [19:51:25] | DevMythNotifyBot: | COMMIT: bennettpeter pushed 1 commit(s) to branch master: https://github.com/MythTV/mythtv/compare/ee55 . . . 77210f263dca |
| [19:56:09] | stuarta[m]: | PeterBennett yes you do need to at some point do 'npm run build' and check-in the resulting artifacts from html/apps/backend/ May as well do it once you have completed the piece you are working on |
| [19:58:09] | peterbennett: | I have completed the General -> Miscellaneous section |
| [19:59:08] | peterbennett: | Is there a plan for i18n? Any type of translate method to be included? |
| [19:59:31] | stuarta: | yes, see the stuff paul-h did, that has some stuff translated |
| [19:59:44] | stuarta: | we need to extend that throughout the whole webapp |
| [20:00:06] | peterbennett: | I don't see that |
| [20:00:21] | peterbennett: | Host Address Backend Setup |
| [20:00:38] | stuarta: | no it's in the settings wizard |
| [20:01:08] | peterbennett: | setupwizard? |
| [20:01:12] | stuarta: | sorry, setupwizard |
| [20:01:34] | stuarta: | eg https://github.com/MythTV/mythtv/commit/f1147 . . . 50f568a3fddf |
| [20:02:00] | stuarta: | there is some online thing he uses to do the translate |
| [20:02:37] | peterbennett: | But do we need special code in the html pages to call the translate? |
| [20:03:21] | stuarta: | there is no functional api to do translation for the webapp, so we may as well just do it in the frontend using a standard angular setup for i18n |
| [20:04:30] | peterbennett: | I see stuff like 'setupwizard.selectCountry' | translate |
| [20:05:39] | stuarta: | yes, if you see the commit above, you'll see where the translation is pulled from |
| [20:06:12] | peterbennett: | So the settings do not have any of that yet |
| [20:06:30] | peterbennett: | Maybe we should do it at the same time |
| [20:07:06] | peterbennett: | Also there is a help button that does nothing, although I see some pages with "Some more very very helpful text goes here!" |
| [20:10:06] | stuarta: | a true WIP :- |
| [20:10:08] | stuarta: | a true WIP :-) |
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| [21:22:44] | stuarta: | peterbennett: is it starting to make more sense now? |
| [21:22:59] | DevMythNotifyBot: | COMMIT: kmdewaal pushed 1 commit(s) to branch master: https://github.com/MythTV/mythtv/compare/7721 . . . ef1323cade68 |
| [21:24:31] | peterbennett: | stuarta Yes |
| [21:24:58] | stuarta: | great. that's what i found, once i started to get into it, it became much easier |
| [21:25:39] | peterbennett: | You must be sitting waiting for me to reconnect. |
| [21:26:01] | stuarta: | not this time, but i have done previously ;-p |
| [21:26:10] | peterbennett: | :) |
| [21:26:25] | ** stuarta is currently researching websocket handling ** | |
| [21:26:44] | stuarta: | it'll be nice to start joining some dots |
| [21:28:48] | peterbennett: | A very useful command : console.log(this); |
| [21:28:58] | peterbennett: | logs the whole structure |
| [21:29:22] | peterbennett: | I added it to the showhelp that currently does nothing |
| [21:29:27] | stuarta: | btw. chrome defintely has an angular plugin, firefox should to, lets you inspect the components |
| [21:29:46] | peterbennett: | I am using chrome |
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| [21:32:26] | stuarta: | did you find anything intesting from logging that showhelp component? |
| [21:37:21] | peterbennett: | I added console.log(this); to the showhelp function, so I can see the values by clicking the help button |
| [21:37:49] | stuarta[m]: | Ah cool |
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