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Allowing equals & not equals of resources items

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This commit is contained in:
Zoe Roux 2020-09-20 23:19:19 +02:00
parent dacfbcd3b2
commit 5b7740f2d9
2 changed files with 28 additions and 18 deletions
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42
Kyoo.CommonAPI/ApiHelper.cs
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@ -3,6 +3,7 @@ using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;
using Kyoo.Models;
namespace Kyoo.CommonApi
{
@ -50,7 +51,7 @@ namespace Kyoo.CommonApi
MemberExpression propertyExpr = Expression.Property(param, property);
ConstantExpression valueExpr = null;
if (operand != "ctn")
if (operand != "ctn" && !typeof(IResource).IsAssignableFrom(propertyExpr.Type))
{
Type propertyType = Nullable.GetUnderlyingType(property.PropertyType) ?? property.PropertyType;
object val = string.IsNullOrEmpty(value) || value.Equals("null", StringComparison.OrdinalIgnoreCase)
@ -61,7 +62,9 @@ namespace Kyoo.CommonApi
Expression condition = operand switch
{
"eq" => Expression.Equal(propertyExpr, valueExpr!),
"eq" when valueExpr == null => ResourceEqual(propertyExpr, value),
"not" when valueExpr == null => ResourceEqual(propertyExpr, value, true),
"eq" => Expression.Equal(propertyExpr, valueExpr),
"not" => Expression.NotEqual(propertyExpr, valueExpr!),
"lt" => StringCompatibleExpression(Expression.LessThan, propertyExpr, valueExpr),
"lte" => StringCompatibleExpression(Expression.LessThanOrEqual, propertyExpr, valueExpr),
@ -81,6 +84,26 @@ namespace Kyoo.CommonApi
return Expression.Lambda<Func<T, bool>>(expression, param);
}
private static Expression ResourceEqual(Expression parameter, string value, bool notEqual = false)
{
MemberExpression field;
ConstantExpression valueConst;
if (int.TryParse(value, out int id))
{
field = Expression.Property(parameter, "ID");
valueConst = Expression.Constant(id);
}
else
{
field = Expression.Property(parameter, "Slug");
valueConst = Expression.Constant(value);
}
if (notEqual)
return Expression.NotEqual(field, valueConst);
return Expression.Equal(field, valueConst);
}
private static Expression ContainsResourceExpression(MemberExpression xProperty, string value)
{
// x => x.PROPERTY.Any(y => y.Slug == value)
@ -88,20 +111,7 @@ namespace Kyoo.CommonApi
ParameterExpression y = Expression.Parameter(xProperty.Type.GenericTypeArguments.First(), "y");
foreach (string val in value.Split(','))
{
MemberExpression yProperty;
ConstantExpression yValue;
if (int.TryParse(val, out int id))
{
yProperty = Expression.Property(y, "ID");
yValue = Expression.Constant(id);
}
else
{
yProperty = Expression.Property(y, "Slug");
yValue = Expression.Constant(val);
}
LambdaExpression lambda = Expression.Lambda(Expression.Equal(yProperty, yValue), y);
LambdaExpression lambda = Expression.Lambda(ResourceEqual(y, val), y);
Expression iteration = Expression.Call(typeof(Enumerable), "Any", xProperty.Type.GenericTypeArguments,
xProperty, lambda);

2
Kyoo/Views/WebClient

@ -1 +1 @@
Subproject commit 2e44a86c4b9004012c10d259ae90925adcd66aa7
Subproject commit 7c117aaed04d693b12baf6b0061f77de084d56be