/// <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 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>
/// 获取指定属性对应的属性规则容器。
/// </summary>
/// <param name="property">托管属性。</param>
/// <param name="createList">如果还没有创建容器，是否需要同时创建该容器。</param>
/// <returns></returns>
internal RulesContainer GetRulesForProperty(IManagedProperty property, bool createList)
{
// get the list (if any) from the dictionary
RulesContainer list = null;
PropertyRules.TryGetValue(property, out list);
if (createList && list == null)
{
// there is no list for this name - create one
list = new RulesContainer();
PropertyRules.Add(property, list);
}
return(list);
}
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; }
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>
/// 获取指定属性对应的属性规则容器。
/// </summary>
/// <param name="property">托管属性。</param>
/// <param name="createList">如果还没有创建容器，是否需要同时创建该容器。</param>
/// <returns></returns>
internal RulesContainer GetRulesForProperty(IManagedProperty property, bool createList)
{
// get the list (if any) from the dictionary
RulesContainer list = null;
PropertyRules.TryGetValue(property, out list);
if (createList && list == null)
{
// there is no list for this name - create one
list = new RulesContainer();
PropertyRules.Add(property, list);
}
return list;
}