Knowledge Base

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====== Entity Framework ======

===== Model Generation =====

Instructions are for .NET 7

==== MySQL ====

<code bash>
dotnet new console –o applicationName

cd applicationName

dotnet add package MySql.EntityFrameworkCore --version 7.0.2

dotnet add package Microsoft.EntityFrameworkCore.Tools --version 7.0.14
</code>

If the Entity Framework tool is not already installed:

<code bash>
dotnet tool install --global dotnet-ef --version 7.*
</code>

Then, generate the model files in the models directory:

<WRAP prewrap>
<code bash>
dotnet ef dbcontext scaffold "server=127.0.0.1;port=3306;uid=jimc;pwd=password;database=database_name" MySql.EntityFrameworkCore -o models -f
</code>
</WRAP>

==== SQL Server ====

<code bash>
dotnet new console –o applicationName

cd applicationName

dotnet add package Microsoft.EntityFrameworkCore.SqlServer --version 7.0.14

dotnet add package Microsoft.EntityFrameworkCore.Tools --version 7.0.14
</code>

If the Entity Framework tool is not already installed:

<code bash>
dotnet tool install --global dotnet-ef --version 7.*
</code>

Then, generate the model files in the models directory:

<WRAP prewrap>
<code bash>
dotnet ef dbcontext scaffold "Server=server_ip_address;User Id=sa;Password=password;Database=database_name;Encrypt = No" Microsoft.EntityFrameworkCore.SqlServer -o models -f
</code>
</WRAP>

===== More Info =====

[[https://learn.microsoft.com/en-us/ef/core/|Entity Framework Core]]

[[https://www.entityframeworktutorial.net/code-first/column-dataannotations-attribute-in-code-first.aspx|Data Annotations - Column Attribute in EF 6 & EF Core]]

[[https://learn.microsoft.com/en-us/ef/ef6/querying/|Querying and Finding Entities]]

{{tag>dotnet database}}