DataGenerator.Commands

.NET Core utility that search for DataGenerator class in your project and calls Generate method where it passed initialized DbContext.

Example

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"
  },

Parameters

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.