Red Entity Mac OS
Modeler Mac OS Installation Essentials for R Entity Analytics Configuration Guide Server installation Modeler Server for UNIX Installation Instructions Modeler Server for Windows Installation Instructions Modeler Scoring Adapter Installation Deployment installation Deployment Adapter Installation Guide - Installation Manager All installation guides. ER Diagram Software for Mac, Windows and Linux. Experience an easy way to create entity relationship diagram on Mac, Windows and Linux. Apple users can make high-quality ER diagram with ease in the OS X platform. Share or cooperate on files effectively through Cloud.
We all love open source and linux. But what to do if you want to use C# for your web app?
ER Diagram Software for Mac, Windows and Linux. Experience an easy way to create entity relationship diagram on Mac, Windows and Linux. Apple users can make high-quality ER diagram with ease in the OS X platform. Share or cooperate on files effectively through Cloud.
C# has Entity Framework to deal with database. Being great library entity framework was designed to work with Ms Sql Server, until recently My Sql introduced support for Entity Framework, which makes it possible to use Entity Framework with My Sql. Let’s take it one step further. We’ll use mono to run C# and linux to run My Sql. For development purpose we use Mac Os and Xamarin.
LAMP is well know for Linux Apach MySql and PHP. CALM here stands for csharp apach linux and mysql.
Red Entity Mac Os Catalina
First, create C# console application at Xamarin. We need to add dependencies for nuget.
Next, we have to configure access to our database. I expect you to have mysql database installed and running at that point.
Here you are interested only at this line
Red Entity Mac Os 11
Put you login/pass/database name here.
Now we are going to introduce MySqlContext.cs file with the following content
It use our configuration from App.config to connect to database. As you can see it also has Customers DbSet. Lets add Customer.cs class.
With this bare set up you can probably connect to database and even create database using code first approach. The caveat of code first approach is that you can autoupdate database or use migration. Autoupdates are bad for many reasons, that is why we will use migration approach. Problem with migrations is that they work at visual studio using power shell, which is not present on Mac Os/Linux, so we have to use underlying API to reproduce commands form VS power shell. I used stackoverflow post as starting point. Problem with that approach is it generates two .cs files and .resx file. You have to add them all to solution/project manually and moreover xamarin/monodevelop can’t handle .resx files properly, because there is no ResXFileCodeGenerator. I found plugin for Xamarin, but didn’t dare to use it. I’ve figure out that .resx file contains only Target property which is getting loaded to .cs file anyway. Designer code for migration looks like that:
As you can see all the use of Resources Manager file is limited to accessing Target resource. I’ve came up with idea to combine all three files into one using some dirty string replacements. Meet MigrationManager.cs!
It has three methods Add/Up/To, which allow to add migration, up database to latest migration and reset to any migration using method To. Method Add generates YourMigration.cs file which you have to add to your project.
Now let’s add some code to Program.cs to use MigrationManager.
As you can see this code provides console way to use Add/To/Up. Now let’s run it and add migration. Add created file to solution. You would create something like that:
Now run code and up database. You would see database and customer table created. Let’s say we decided to add Address field to Customer class.
Run program again and add another migration called Address.
Now you can up database again and then go back to any migration you want using it’s id, for example:
201504061606235_Address.
With this set up you can control your database schema history by set of migration as well as you source code commits would point out which database schema was used at that moment
Entire source code available at git repo.