private static void SetStringLength(ModelBuilder modelBuilder, IMutableEntityType entityType, IMutableProperty entityProperty, PropertyInfo propertyInfo)
{
var maxLength = entityProperty.GetMaxLength();
if (maxLength == null)
{
modelBuilder.Entity(entityType.Name, b =>
{
var propertyBuilder = b.Property(propertyInfo.Name);
var attributes = propertyInfo.GetCustomAttributes(typeof(AutoLengthAttribute), true);
if (attributes.Length > 0)
{
var att = (AutoLengthAttribute)attributes[0];
propertyBuilder.HasMaxLength(att.GetMax());
}
else
{
var theKey = Maps.Keys.FirstOrDefault(x => propertyInfo.Name.EndsWith(x));
if (theKey != null)
{
propertyBuilder.HasMaxLength(Maps[theKey]);
}
else
{
propertyBuilder.HasMaxLength(AutoLengthAttribute.GetMax(AutoLengthCategory.StringNormal));
}
}
});
}
}
public static ModelBuilder ApplyAutoLength(this ModelBuilder modelBuilder)
{
if (Maps.Count == 0)
{
Maps.Add("Id", AutoLengthAttribute.GetMax(AutoLengthCategory.StringPk));
Maps.Add("Pk", AutoLengthAttribute.GetMax(AutoLengthCategory.StringPk));
Maps.Add("Name", AutoLengthAttribute.GetMax(AutoLengthCategory.StringNormal));
Maps.Add("Title", AutoLengthAttribute.GetMax(AutoLengthCategory.StringNormal));
Maps.Add("Description", AutoLengthAttribute.GetMax(AutoLengthCategory.StringContent));
Maps.Add("Json", AutoLengthAttribute.GetMax(AutoLengthCategory.StringContent));
Maps.Add("Bag", AutoLengthAttribute.GetMax(AutoLengthCategory.StringContent));
Maps.Add("Content", AutoLengthAttribute.GetMax(AutoLengthCategory.StringContent));
}
foreach (var entityType in modelBuilder.Model.GetEntityTypes())
{
foreach (var entityProperty in entityType.GetProperties())
{
//Debug.WriteLine(entityType.ClrType + "." + entityProperty.Name + " " + entityProperty);
if (!entityProperty.IsShadowProperty() && entityProperty.PropertyInfo != null)
{
//todo: more config by convention
if (entityProperty.ClrType == typeof(string))
{
SetStringLength(modelBuilder, entityType, entityProperty, entityProperty.PropertyInfo);
}
}
}
}
return(modelBuilder);
}