Just stumbled across my 2004 MS thesis – “A Case Study into the Effects of Software – Process Improvement on Product Quality” – as study into the effects of agile project process maturity on the types of defects that surface in a software product. Still interesting stuff (at least some of the principles discovered) almost 20 years later 🙂 #scary
Has anything changed? 🙂
When creating web applications, we all try to create good SEO tags in the header of each page. Modifying the meta tags based on page content is a standard practice. In Blazor, this is not obvious as the _host.cshtml is rendered before the Blazor execution pipeline.
There was a tag extension in the preview of Blazor 5 which didn’t make it into the release and there are no news if this is continued or not (just a note from a program manager that this didn’t make it into the release) … so I guess this will be solved across the board in next release …. ? 🙂
Fortunately we have Toolbelt.Blazor.HeadElement (https://github.com/jsakamoto/Toolbelt.Blazor.HeadElement/)
This works nicely if you make sure to use server prerendering as explained in the documentation. The default setup options result in (at least) the Facebook screen scraping does not collect the updated title and meta elements, but only the original ones (which are the site static default ones).
This is all fixed with ….
app.UseHeadElementServerPrerendering();
…. as described in the documentation. Check out: https://golf80.com/Rounds/33957
Had some problems with the EF6 – working with 2 tables in the UserManagement schema – created an automatic association table in the dbo schema. Look no further than here for an explanation and solution
#notetoself
In development and while testing various things in EF6 core – I tend to end up with a lot of migration garbage which occasionally I have to take out. This is how it’s done #notetoself
#notetoself
Working with entity: Tournament
Which has children: TRound with Course as entity that needs to be loaded based on Id ( as each golf round is played on a Course 🙂 )
ctx.Tournaments.Include(c => c.Trounds).ThenInclude(c => c.Course)
Took me a while to figure out why ctx.Tournaments.Include(c => c.Trounds.Select(c => c.Course)) stopped working, but it is a (good) core thingy.
#notetoself … Once again, scratching my head for way to long about something that turns out to have a simple workaround #devlife
On one of my (new) blazor pages (/Bookings/TeeTimes), onclick event was not firing. Didn’t matter what kind of flavour of onclick declaration I used, the event was not getting fired.
Until of course I noticed that this page was producing a lot of blazor loading errors:
Turns out I was running the project (as usual) from command line (dotnet) and had a shortcut in my browser to go directly to this page. Seems like that sets the “document root” to “Bookings” and from that it tries to find the blazor files.
Starting from the root page and navigating to the Bookings/TeeTimes page solved the problem, with the permanent fix being adding this within the head element of the layout
<base href="/" />
If the ListViewFieldSettings element is missing when building Blazor… (build validation or code complete doesn’t catch this mistake)
This results in a nullpointer exception which is difficult to debug
#notetoself #devlife
Starting point is Rick Strahl’s github: https://github.com/RickStrahl/Westwind.AspnetCore.LiveReload
Voila, you have live reload #notetoself
network lsdocker network inspect -f '{{range .IPAM.Config}}{{.Subnet}}{{end}}' [networkid]docker network inspect -f '{{json .Containers}}' [networkid] | jq '.[] | .Name + ":" + .IPv4Address'docker exec [nameofnode] cat /etc/hostsInstalling ping in the container: https://stackoverflow.com/questions/39901311/docker-ubuntu-bash-ping-command-not-found
Setting up a network:
https://www.digitalocean.com/community/questions/how-to-ping-docker-container-from-another-container-by-name
Docker networking for Dummies (like me) https://www.freecodecamp.org/news/how-to-get-a-docker-container-ip-address-explained-with-examples/
Setting up the classical environment of having the following 3 components, Web, API, SQL
docker create myNetdocker network connect myNet web1 docker network connect myNet api1docker network connect myNet websql1A note to self. Use remote command bash when the docker attach command hangs: docker exec -it [container-id] bash
Continuing my framework move from .net framework 4.8 to .net 5 (Preview7) I obviously have to take the step moving from a framework Entity Framework to EntityFrameworkCore. A few notes to self regarding the upgrade.
The old context generation doesn’t make sense any more. EF core understandably doesn’t have the design options 4.8 (EF 6.2) had, so what made sense for me was to regenerate the model from database using
Scaffold-DbContext (See e.g. https://www.entityframeworktutorial.net/efcore/create-model-for-existing-database-in-ef-core.aspx)
This simply worked out of the box, with a new code representation of my database generated in the defined target folder.
As I am dealing with substantial number of tables, some with non-orthodox naming conventions (plural entity names – which I will fix), the generated code varied slightly from my pre-existing entity structure, breaking a lot of code.
Also, the stored procedures were missing. They are now executed using .FromSql or .ExecuteSql (See e.g. https://www.entityframeworktutorial.net/efcore/working-with-stored-procedure-in-ef-core.aspx)
A bit of “back to the future” effect on this one 🙂
Next creating a baseline database migration from my old database was easy. Just followed these guidelines: https://cmatskas.com/ef-core-migrations-with-existing-database-schema-and-data/ …. and voilá!! the first migration was added to my database.
Now it is just a matter of cleaning up a bit in the database, creating a clear migration path from the production database to the target setup for GolfCloudPro.com …. easy right!? :Þ
Center.is - Upplýsingatækniráðgjöf og Hugbúnaðarþróun 