Noise from the Basement

This is the part one of a lighting talk I’m giving at the SQL Saturday Edmonton Speaker Idol Contest.   Imagine I’m actually speaking the words below and showing some of the images on slides and/or doing a demo.  Code can be found here.

This is a rough draft so constructive feedback at chris.cumming@saturdaymp.com is much appreciated.

Skip ahead to Part 2 if don’t feel like reading all of part 1.

Developer Bud wants to create a new application to track the board games he and his friends play.  He wants a simple website where him and his buddies can login to update the results from the board games they have played.  Being a .NET Developer he creates a ASP.NET MVC Core application with individual authentication.

I’m happy to announce the release of XPlugins.iOS.BEMCheckBox 1.4.3.  The main feature of this release is exposing the DidTapCheckBox event in the underlying BEMCheckBox.  You can find a full list of issues fixed in this release here.

The easiest way to get this update is via NuGet:

Install-Package SaturdayMP.XPlugins.iOS.BEMCheckBox -Version 1.4.3

dotnet add package SaturdayMP.XPlugins.iOS.BEMCheckBox --version 1.4.3

Subscribe to the DidTapCheckBox event as you would any other C# event:

checkbox.DidTapCheckBox += DidTapCheckBoxEvent;

The event handler looks like:

[caption id=“attachment_1522” align=“alignright” width=“300”] Gift wrapping skill is inversely correlated to software development skills.[/caption]

This morning I made my last shopping trip before Christmas, at least I hope it’s my last trip.

Pro tip: the Costco near us officially opens at 10am but if you show up at 9:45ish they will let you in.  At least they let me in.  Then you can run, grab the salmon, and get out before the hoards descend.

When building a Xamarin application one step is to build the Android APK file.  This is a MsBuild step in TeamCity that looks like:

This step generates the following error:

[15:55:53][Source\SmallVictories\SmallVictories.csproj] CopyRealmWeaver
[15:55:53][CopyRealmWeaver] CopyRealmWeaver
[15:55:53][CopyRealmWeaver] Copy
[15:55:53][Copy] Creating directory "*Undefined*Tools".
[15:55:53][Copy] C:\BuildAgent\temp\buildTmp\.nuget\packages\realm.database\2.1.0\build\Realm.Database.targets(28, 5): error MSB3021: Unable to copy file "C:\BuildAgent\temp\buildTmp\.nuget\packages\realm.database\2.1.0\build\..\tools\RealmWeaver.Fody.dll" to "*Undefined*Tools\RealmWeaver.Fody.dll". Illegal characters in path.
[15:55:53][Step 6/8] Error message is logged

Notice the “*Undefined*Tools” in the directory path.  To fix this step you need to add /p:SolutionDir="/" to the command line.  So now the build step looks like:

This post is part of a larger discussion about temporal databases.  Hopefully it stands on it’s own but for more context see the Temporal Database Design page.  You can read the official Wikipedia definition but for our purposes a Temporal Database is a database where you can query for historical data using SQL.  This is work in progress and constructive feedback via e-mail, at chris.cumming@saturdaymp.com, is most appreciated.

In the last Temporal Database post I introduced timelines.  In this post we will talk about the one rule you cannot break: