/// <summary>
/// applies a set of patch operations to an update operation
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="updateoperation">update operation to be updated</param>
/// <param name="operations">operations to apply</param>
/// <returns>the update operation for fluent behavior</returns>
public static UpdateValuesOperation <T> Patch <T>(this UpdateValuesOperation <T> updateoperation, IEnumerable <PatchOperation> operations)
{
Type entitytype = typeof(T);
if (!Attribute.IsDefined(entitytype, typeof(AllowPatchAttribute)))
{
throw new NotSupportedException($"Patching of '{entitytype.Name}' is not supported");
}
List <Expression <Func <T, bool> > > setters = new List <Expression <Func <T, bool> > >();
foreach (PatchOperation patch in operations)
{
if (patch.Op != "replace")
{
throw new NotSupportedException("Only 'replace' operations are supported when updating entities");
}
string propertyname = patch.Path.Substring(1).ToLower();
PropertyInfo property = entitytype.GetProperties().FirstOrDefault(p => p.Name.ToLower() == propertyname);
if (property == null)
{
throw new PropertyNotFoundException(propertyname);
}
if (!Attribute.IsDefined(property, typeof(AllowPatchAttribute)))
{
throw new NotSupportedException($"Patching of '{entitytype.Name}::{property.Name}' is not supported");
}
object targetvalue = Converter.Convert(patch.Value, property.PropertyType, true);
setters.Add(e => Field.Property <T>(property.Name, true) == targetvalue);
}
if (setters.Count > 0)
{
updateoperation.Set(setters.ToArray());
}
return(updateoperation);
}
/// <summary>
/// applies a set of patch operations to an update operation
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="updateoperation">update operation to be updated</param>
/// <param name="operations">operations to apply</param>
/// <returns>the update operation for fluent behavior</returns>
public static UpdateValuesOperation <T> Patch <T>(this UpdateValuesOperation <T> updateoperation, params PatchOperation[] operations)
{
return(Patch(updateoperation, (IEnumerable <PatchOperation>)operations));
}
