ActiveRecord/Castle.ActiveRecord/Attributes/Validations/ValidateIsUniqueAttribute.cs

   1 // Copyright 2004-2008 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 namespace Castle.ActiveRecord
  16 {
  17         using System;
  18
  19         using Castle.ActiveRecord.Framework.Validators;
  20         using Castle.Components.Validator;
  21
  22
  23         /// <summary>
  24         /// Validate that the property's value is unique in the database when saved
  25         /// </summary>
  26         [Serializable, CLSCompliant(false)]
  27         public class ValidateIsUniqueAttribute : AbstractValidationAttribute
  28         {
  29                 private readonly IValidator validator;
  30
  31                 /// <summary>
  32                 /// Initializes a new instance of the <see cref="ValidateIsUniqueAttribute"/> class.
  33                 /// </summary>
  34                 public ValidateIsUniqueAttribute()
  35                 {
  36                         validator = new IsUniqueValidator();
  37                 }
  38
  39                 /// <summary>
  40                 /// Initializes a new instance of the <see cref="ValidateIsUniqueAttribute"/> class.
  41                 /// </summary>
  42                 /// <param name="errorMessage">The error message.</param>
  43                 public ValidateIsUniqueAttribute(String errorMessage)
  44                         : base(errorMessage)
  45                 {
  46                         validator = new IsUniqueValidator();
  47                 }
  48
  49                 /// <summary>
  50                 /// Constructs and configures an <see cref="IValidator"/>
  51                 /// instance based on the properties set on the attribute instance.
  52                 /// </summary>
  53                 /// <returns></returns>
  54                 public override IValidator Build()
  55                 {
  56                         ConfigureValidatorMessage(validator);
  57
  58                         return validator;
  59                 }
  60         }
  61 }