public override void Load()
{
DbContextOptionsBuilder builder = new DbContextOptionsBuilder();
//通过 委托 _optionsAction 传入 DbContextOptionsBuilder 来配置 DbContextOptions
//配置好了以后 通过DbContextOptionsBuilder 获取 DbContextOptions
_optionsAction(builder);
PropConfigurationContext efContext = new PropConfigurationContext(builder.Options);
Data = !efContext.Values.Any() ?
CreateAndSaveDefaultValues(efContext):
efContext.Values.ToDictionary(c => c.Id, c => c.Value);
}
private static IDictionary <string, string> CreateAndSaveDefaultValues(
PropConfigurationContext dbContext)
{
// Quotes (c)2005 Universal Pictures: Serenity
// https://www.uphe.com/movies/serenity
var configValues = new Dictionary <string, string>
{
{ "quote1", "I aim to misbehave." },
{ "quote2", "I swallowed a bug." },
{ "quote3", "You can't stop the signal, Mal." }
};
dbContext.Values.AddRange(configValues
.Select(kvp => new EFConfigurationValue
{
Id = kvp.Key,
Value = kvp.Value
})
.ToArray());
dbContext.SaveChanges();
return(configValues);
}