/// <summary>
/// 检查某个属性是否满足规则
/// </summary>
/// <param name="target">要验证的实体。</param>
/// <param name="property">托管属性</param>
/// <param name="actions">验证时的行为。</param>
/// <param name="ruleFilter">要验证的规则的过滤器。</param>
/// <returns></returns>
/// <exception cref="System.ArgumentNullException">target
/// or
/// property</exception>
public static BrokenRulesCollection Validate(
this Entity target, IManagedProperty property,
ValidatorActions actions,
Func <IRule, bool> ruleFilter
)
{
if (target == null)
{
throw new ArgumentNullException("target");
}
if (property == null)
{
throw new ArgumentNullException("property");
}
var res = new BrokenRulesCollection();
//获取指定实体的规则容器
var rulesManager = ValidationHelper.GetTypeRules(target.FindRepository() as ITypeValidationsHost, target.GetType());
if (rulesManager != null)
{
// get the rules list for this property
RulesContainer rulesList = rulesManager.GetRulesForProperty(property, false);
if (rulesList != null)
{
// get the actual list of rules (sorted by priority)
CheckRules(target, rulesList, res, actions, ruleFilter);
}
}
return(res);
}
private static void ValidateEntity(Entity target, BrokenRulesCollection res, Func <IRule, bool> filter, ValidatorActions actions)
{
var stopOnFirst = HasAction(actions, ValidatorActions.StopOnFirstBroken);
var rules = ValidationHelper.GetTypeRules(target.FindRepository() as ITypeValidationsHost, target.GetType());
if (rules != null)
{
//先验证所有属性。
foreach (var de in rules.PropertyRules)
{
CheckRules(target, de.Value, res, actions, filter);
if (stopOnFirst && res.Count > 0)
{
return;
}
}
//再验证整个实体。
CheckRules(target, rules.TypeRules, res, actions, filter);
if (stopOnFirst && res.Count > 0)
{
return;
}
}
if (HasAction(actions, ValidatorActions.ValidateChildren))
{
foreach (var child in target.GetLoadedChildren())
{
var list = child.Value as EntityList;
if (list != null)
{
list.EachNode(childEntity =>
{
ValidateEntity(childEntity, res, filter, actions);
if (stopOnFirst && res.Count > 0)
{
return(true);
}
return(false);
});
if (stopOnFirst && res.Count > 0)
{
return;
}
}
else
{
ValidateEntity(child.Value as Entity, res, filter, actions);
if (stopOnFirst && res.Count > 0)
{
return;
}
}
}
}
}
private static void CheckRules(
Entity target,
RulesContainer rules, BrokenRulesCollection brokenRulesList,
ValidatorActions actions, Func <IRule, bool> ruleFilter
)
{
var list = rules.GetList(true);
var ignoreDataSourceValidations = HasAction(actions, ValidatorActions.IgnoreDataSourceValidations);
var stopOnFirstBroken = HasAction(actions, ValidatorActions.StopOnFirstBroken);
for (int index = 0; index < list.Count; index++)
{
IRule rule = list[index];
//连接数据源的验证规则可能需要被过滤掉。
if (ignoreDataSourceValidations && rule.ValidationRule.ConnectToDataSource)
{
continue;
}
//如果与指定的范围不符合，也需要过滤掉。
if (ruleFilter != null && !ruleFilter(rule))
{
continue;
}
//如果规则不适用于当前实体的状态，则也自动过滤掉。
if (!IsMatchEntityStatus(target, rule.Meta))
{
continue;
}
var args = new RuleArgs(rule);
try
{
args.BrokenDescription = null;
rule.ValidationRule.Validate(target, args);
}
catch (Exception ex)
{
throw new ValidationException("Properties.Resources.ValidationRulesException" + args.Property.Name + rule.Key, ex);
}
if (args.IsBroken)
{
brokenRulesList.Add(rule, args);
if (stopOnFirstBroken)
{
break;
}
}
}
}
///// <summary>
///// 检查整个实体对象是否满足规则
///// </summary>
///// <param name="target">要验证的实体。</param>
///// <param name="scope">要验证的实体的状态范围。</param>
///// <returns></returns>
///// <exception cref="System.ArgumentNullException">target</exception>
//public static BrokenRulesCollection Validate(this Entity target, EntityStatusScopes scope)
//{
// return Validate(target, r => r.Meta.HasScope(scope), DefaultActions);
//}
///// <summary>
///// 检查整个实体对象是否满足规则
///// </summary>
///// <param name="target">要验证的实体。</param>
///// <param name="scope">要验证的实体的状态范围。</param>
///// <param name="actions">要验证的行为.</param>
///// <returns></returns>
///// <exception cref="System.ArgumentNullException">target</exception>
//public static BrokenRulesCollection Validate(this Entity target, EntityStatusScopes scope, ValidatorActions actions)
//{
// return Validate(target, r => r.Meta.HasScope(scope), actions);
//}
/// <summary>
/// 检查整个实体对象是否满足规则
/// </summary>
/// <param name="target">要验证的实体。</param>
/// <param name="ruleFilter">要验证的规则的过滤器。</param>
/// <param name="actions">验证时的行为。</param>
/// <returns></returns>
/// <exception cref="System.ArgumentNullException">target</exception>
public static BrokenRulesCollection Validate(this Entity target, Func <IRule, bool> ruleFilter, ValidatorActions actions)
{
if (target == null)
{
throw new ArgumentNullException("target");
}
var res = new BrokenRulesCollection();
ValidateEntity(target, res, ruleFilter, actions);
return(res);
}