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1. #Scaffold dbcontext postgresql install#
2. #Scaffold dbcontext postgresql update#
3. #Scaffold dbcontext postgresql code#
4. #Scaffold dbcontext postgresql windows#

Show which database would be dropped, but don't drop it. Defaults to the first one in the project. NET runtime so it doesn't need to be installed on the machine.

#Scaffold dbcontext postgresql update#

Bundle-MigrationĬreates an executable to update the database.Īlso bundle the. Defaults to generated from the output directory. The namespace to use for the generated classes. Paths are relative to the target project directory. This is a positional parameter and is required. The Context, Project, and StartupProject parameters support tab-expansion. To show help information about a command, use PowerShell's Get-Help command. If this parameter is omitted, the Startup project in Solution properties is used as the target project. If this parameter is omitted, the Default project for Package Manager Console is used as the target project. If there are multiple context classes, this parameter is required. If this parameter is omitted, EF Core finds the context class. Class name only or fully qualified with namespaces. The following table shows parameters that are common to all of the EF Core commands: Parameter Update-Database -Args '-environment Production' This and any additional arguments are passed into Program.CreateHostBuilder. You can specify the environment for ASP.NET Core projects on the command-line. The dummy project you create to use as startup project provides a concrete target platform into which the tools can load the. NET Standard is not sufficient for the EF Core tools to execute application code. NET implementation it's a specification of a set of APIs that. They can't do that if the EF Core model is in a. NET Framework, the EF Core tools borrow the runtime from the project. When the EF Core model is in a project that targets.

#Scaffold dbcontext postgresql code#

Why is a dummy project required? As mentioned earlier, the tools have to execute application code at design time. The project can be a dummy project with no real code - it is only needed to provide a target for the tooling. NET Framework console app project whose only purpose is to act as startup project for the tools.

#Scaffold dbcontext postgresql windows#

For example, this is true of Xamarin and Universal Windows Platform apps. NET Standard class library might not have a. The Package Manager Console tools work with. It's also possible to put migrations code in a class library separate from the EF Core context. NET Core console app or web app references the class library. The EF Core context and entity classes are in a.A typical scenario where they are separate projects is when: The startup project and target project are often the same project. You can specify a different project as startup project by using the -StartupProject parameter. By default, the Startup Project in Solution Explorer is the startup project. The tools have to execute application code at design time to get information about the project, such as the database connection string and the configuration of the model. The startup project is the one that the tools build and run. You can specify a different project as target project by using the -Project parameter. By default, the Default project selected in Package Manager Console is the target project.

The project is also known as the target project because it's where the commands add or remove files. The commands refer to a project and a startup project.

The output looks like this (it doesn't tell you which version of the tools you're using): Verify that the tools are installed by running this command: Get-Help about_EntityFrameworkCore Update the tools by running the following command in Package Manager Console.

#Scaffold dbcontext postgresql install#

Install the Package Manager Console tools by running the following command in Package Manager Console: Install-Package NET Core CLI tools are cross-platform and run inside a command prompt. If you aren't using Visual Studio, we recommend the EF Core Command-line Tools instead.

The commands run inside of Visual Studio using the Package Manager Console. For example, they create migrations, apply migrations, and generate code for a model based on an existing database. The Package Manager Console (PMC) tools for Entity Framework Core perform design-time development tasks.