/// <summary>
/// Delete a set of values from a Defined Type.
/// </summary>
/// <param name="definedTypeGuidString">A string representing the Guid identifier of the <see cref="Rock.Model.DefinedType"/> to which a new value will be added.</param>
/// <param name="values">A collection of strings containing the Values of the <see cref="Rock.Model.DefinedValue"/> entries to be deleted.</param>
public void DeleteValues(string definedTypeGuidString, IEnumerable <string> values)
{
if (values == null)
{
return;
}
var valueList = values.ToList();
if (!valueList.Any())
{
return;
}
var dataContext = ( RockContext )this.Context;
// Resolve the Defined Type.
var definedType = DefinedTypeCache.Get(new Guid(definedTypeGuidString));
if (definedType == null)
{
throw new Exception($"Defined Type is invalid. Could not map identifier \"{ definedTypeGuidString }\" to an existing Defined Type.");
}
// Delete the existing Defined Value if it exists.
var definedValueService = new DefinedValueService(dataContext);
var definedValues = definedValueService.Queryable().Where(x => x.DefinedTypeId == definedType.Id && valueList.Contains(x.Value));
if (definedValues.Any())
{
definedValueService.DeleteRange(definedValues);
dataContext.SaveChanges();
}
}
