.NET Core utility that search for DataGenerator class in your project and calls Generate method where it passed initialized DbContext.
Generator class:
public class DataGenerator
{
public void Generate(AppDbContext dbContext)
{
dbContext.Users.Add(new User { Name = "User1" });
dbContext.Users.Add(new User { Name = "User2" });
dbContext.SaveChanges();
}
}OR
public class DataGenerator
{
public void Generate(AppDbContext dbContext, string argument)
{
//argument contains the value from the --argument parameter
dbContext.Users.Add(new User { Name = "User1" });
dbContext.Users.Add(new User { Name = "User2" });
dbContext.SaveChanges();
}
}project.json:
"dependencies": {
"other dependencies":"...",
"DataGenerator.Commands": "1.0.*"
},
"commands": {
"datagen": "DataGenerator.Commands"
},DataGenerator.Commands accept following parameters:
| Parameter | Description |
|---|---|
--dbContextAssembly <DB_CONTEXT_ASSEMBLY_NAME> |
Assembly name where the DbContext is located. |
--generatorType <GENERATOR_TYPE> |
Generator class name (this class has to have Generate(DbContext) method). |
--generatorAssembly <GENERATOR_ASSEMBLY_NAME> |
Generator class name (this class has to have Generate(DbContext) method). |
--startupAssembly <STARTUP_ASSEMBLY> |
Assembly name where the Startup class which initialize DbContext is located. |
--environment <ENVIRONMENT> |
Used environment passed to Startup class for initialization (default is 'Development'). |
| `--recreate <DATABASE_HOST> | <DATABASE_NAME>` |
--mode wait |
If mode is 'wait' it waits at the and for user to press enter before leaving a program. |
--argument <ARGUMENT> |
This argument is passed as the second argument to the data generator. |