NET Core for building distributed systems - Part 1. We moesten een object aanpassing maken. Als je zoals ik ben gebrainwasht met dit boek tijdens je studie Data base systemen voor de praktijk, Prof. Vandenbulcke grijp je meteen naar normalisatie, een 1 op N relatie moet het in de database … Continue reading Serialized LOB door Michel in Affinno's blog. In a production environment, it can be hard to diagnose logfiles and investigate if something went wrong. Especially in an asynchronous environment, where multiple threads are adding entries at the same time.
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We moesten een object aanpassing maken. Als je zoals ik ben gebrainwasht met dit boek tijdens je studie Data base systemen voor de praktijk, Prof.
Vandenbulcke grijp je meteen naar normalisatie, een 1 op N relatie moet het in de database zijn! En het werkt eigenlijk best prettig: een property met daarin de lijst met items serialized naar JSON en op de class een paar methodes om de lijst te onderhouden.
Kleine drawback: In het kader van information hiding zou deze property nu dus private moeten zijn, zodat deze niet van buiten de class kan worden gewijzigd.
Helaas is het in de Entity Framework versie voor de 4. NET geen fatsoenlijke oplossing beschikbaar dat een property voor de aanroepende code private is, maar voor Entity Framework wel gebruikt kan worden om van- en naar de database te gaan. In that post I started the process of running the tests on the command prompt. There is also a way to start them from Visual Studio itself. You can do that with the help of a taskrunner named Gulp.
Now add to your project, at the same level as the karma. This task will start a Karma server and then wait for changes in your test- code like specified in the karma. In the install of gulp, I used the -g switch which installs the package globally. This way, it works no matter which directory is current. This is the choice you would use if you were installing grunt, for example. But when I wanted to use the globally installed gulp in another project, I did have to install it local to that project too:.
If not, read on: I use NPM as package manager. NPM is widely used for installing client side packages. If you get something like this NPM is available and you can go to step 2b: install the packages. Add, to your testproject, a NPM packages file.
This will hold the names of all the NPM packages you will install:. Then go, in the still open command window, to the root directory of the testproject. Then run, one by one, these commands. I got some warnings and deprecated messages during this process, but it did not seem to break anything. Karma will take care of running your tests, but for that it needs some information. This will ask some questions, answer them like this below.
In this example the location of the source and test files is left blank; we will enter them later. Time to create the first test. If your source code is dependent on other files or 3rd library source files like KnockoutJS or JQuery, you will have to include the paths to those files here too.
It reads like this:. Now your test failed! That is because there is an error in the test. The test is rerun automatically and should succeed now.
Azure pricing frequently puzzles me. What you can see the Cosmos DB pricing consists of 2 parts : The first one is the size of your storage in GB , is in the right column and probably makes most sense. And this needs more clarification.
The numbers higher than one are probably estimates and will depend on request and response size but at least it gives you something to start with. This slide is from October so the exact numbers and prices will probably vary with the time you read this. Instead of thinking about CPU, IO, and memory and how they each affect your application throughput, you can think in terms of a single RU measure. I requested a https certificate for my site from my hosting provider and after payment my site was https!
I was asked to estimate the work to create an email newsletter. The work of reading email addresses and sending the mail was already in place, so all I had to do was create the HTML. I received some visual guidance and most of the content was already present in text , so all I had to do is create one static HTML page, how hard could it be? As webdeveloper I am used to browsers sometime implementing things different than other browsers. But with the email newsletter the dark side of the IE vs Netscape past came back to live for me.
Not only was it almost not possible to work CSS only so I had to fall back to the type a lot, but the differences of visualization of the HTML were surprising… and not in a good way.
This obvioulsy lead to investigating the topic more than I expected to do! So I was looking for a quick way to test my website on an older version of Internet Explorer. But much to my surprise there actually are virtual machines to test software on Microsoft Edge and Internet Explorer 8 through Internet Explorer 11, issued by Microsoft itself.
They have a limited livespan of 90 days but for some testing this will do. And otherwise you can download a new one after this period. You can download images for these browsers:. I was looking for a calendar to use in an admin portal, to show exceptions on a given day. The id is when I want to drill in on the data. I only show how many errors there are on a given day, and see below I hook a click event to the calendar to get all errors for a specific day, and I use the id of the event to see which day is selected.
The start is the date in which the event is placed. The at the end I set the className. This css class is applied to the element in the calendar. In my case red means exceptions that day, and purple I also use other colors for no errors, 1, , , and or more. First line in a jQuery load event, call the fullCalendar function on the element we created in step 1. The start- and enddate of the period is automatically sent along to this url as querystring parameters.
This function goes to the server, gets all exceptiondata and returns it. The function then puts it in an HTML element called logcontent. Menu Skip to content Home About. Search for:. Run this command in the directory your karma. Server; gulp. Then, when you change the test- code the tests get re-executed for direct feedback. Happy unit testing! But when I wanted to use the globally installed gulp in another project, I did have to install it local to that project too: Npm install gulp --save.
The solution now looks like this: 2 Install Karma en Jasmine If you are comfortable installing packages via NPM or you use another package manager, then just install these packages and go to step 3.
This will hold the names of all the NPM packages you will install: Then go, in the still open command window, to the root directory of the testproject. Then run, one by one, these commands npm install —save jasmin npm install —save karma npm install —save karma-jasmine npm install —save karma-chrome-launcher I got some warnings and deprecated messages during this process, but it did not seem to break anything.
Configure the Karma runner Karma will take care of running your tests, but for that it needs some information. Create tests Time to create the first test. Enjoy Your first test now succeeded, celebrate it and head on for more tests!
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Databasesystemen voor de praktijk