public void GetWhereExpressionTest()
{
WhereConditionArguments <TestClassA> whereConditionArguments = new WhereConditionArguments <TestClassA>();
whereConditionArguments.SpliceMode = Enums.EnumSpliceMode.AndAlso;
whereConditionArguments.WhereConditions.Add(new WhereCondition()
{
Key = "A24235634", Value = "", MatchMode = Enums.EnumMatchMode.Equal
});
whereConditionArguments.WhereConditions.Add(new WhereCondition()
{
Key = nameof(TestClassA.A), Value = "1", MatchMode = Enums.EnumMatchMode.NotEqual
});
whereConditionArguments.WhereConditions.Add(new WhereCondition()
{
Key = nameof(TestClassA.A), Value = new int[] { 1, 2, 3, 4 }, MatchMode = Enums.EnumMatchMode.In
});
WhereConditionArguments <TestClassA> w2 = new WhereConditionArguments <TestClassA>
{
SpliceMode = Enums.EnumSpliceMode.OrElse
};
w2.WhereConditions.Add(new WhereCondition()
{
Key = nameof(TestClassA.B), Value = "30", MatchMode = Enums.EnumMatchMode.NotEqual
});
w2.WhereConditions.Add(new WhereCondition()
{
Key = "DDDDD", Value = "", MatchMode = Enums.EnumMatchMode.In
});
w2.WhereConditions.Add(new WhereCondition()
{
Key = nameof(TestClassA.A), Value = new int[] { 1, 2, 3, 4 }, MatchMode = Enums.EnumMatchMode.In
});
whereConditionArguments.InnerWhereConditionArguments.Add(w2);
whereConditionArguments = JsonConvert.DeserializeObject <WhereConditionArguments <TestClassA> >(JsonConvert.SerializeObject(whereConditionArguments));
List <WhereConditionFilterAttribute> whereConditionFilterAttributes = new List <WhereConditionFilterAttribute>();
whereConditionFilterAttributes.Add(new WhereConditionFilterAttribute(Enums.EnumMatchMode.All, nameof(TestClassA.A), nameof(TestClassA.B)));
WhereConditionArgumentsInterpreter whereConditionArgumentsInterpret = new WhereConditionArgumentsInterpreter();
_ = whereConditionArgumentsInterpret.ApplyFilter(whereConditionArguments, whereConditionFilterAttributes);
WhereConditionArguments b = whereConditionArgumentsInterpret.Parse(whereConditionArguments);
whereConditionArguments = b as WhereConditionArguments <TestClassA>;
Expression <Func <TestClassA, bool> > c = whereConditionArguments.GetWhereLambdaExpression();
}
public async Task BindModelAsync(ModelBindingContext bindingContext)
{
if (bindingContext == null)
{
throw new ArgumentNullException(nameof(bindingContext));
}
string modelName = bindingContext.BinderModelName;
if (string.IsNullOrEmpty(modelName))
{
modelName = bindingContext.ModelMetadata.Name;
}
ValueProviderResult valueProviderResult = bindingContext.ValueProvider.GetValue(modelName);
if (valueProviderResult == ValueProviderResult.None)
{
await Task.CompletedTask;
return;
}
bindingContext.ModelState.SetModelValue(modelName, valueProviderResult);
string requestString = valueProviderResult.FirstValue;
if (string.IsNullOrEmpty(requestString))
{
await Task.CompletedTask;
return;
}
WhereConditionArguments whereParameterArguments = JsonConvert.DeserializeObject(requestString, bindingContext.ModelType) as WhereConditionArguments;
try
{
IEnumerable <WhereConditionFilterAttribute> whereParameterAttributes = ((DefaultModelMetadata)bindingContext.ModelMetadata).Attributes.ParameterAttributes
.Where(attr => attr.GetType() == typeof(WhereConditionFilterAttribute)).Select(attr => attr as WhereConditionFilterAttribute);
WhereConditionArgumentsInterpreter whereConditionArgumentsInterpret = new WhereConditionArgumentsInterpreter();
whereParameterArguments = whereConditionArgumentsInterpret.ApplyFilter(whereParameterArguments, whereParameterAttributes?.ToList());
whereParameterArguments = whereConditionArgumentsInterpret.Parse(whereParameterArguments);
}
catch (Exception ex)
{
bindingContext.ModelState.TryAddModelError(bindingContext.ModelName, ex.Message);
await Task.CompletedTask;
return;
}
bindingContext.Result = ModelBindingResult.Success(whereParameterArguments);
await Task.CompletedTask;
return;
}
