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Merged
sebastienros merged 6 commits into from
Jan 2, 2022
Merged

Improve json filter #430

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5e64ad4
Improve json filter
Soar360 Dec 15, 2021
90ce9d6
Improve json filter
Soar360 Dec 16, 2021
1fca9c2
JsonShouldWriteNullIfDictionaryNotReturnFluidIndexable
Soar360 Dec 17, 2021
4b67604
format codes
Soar360 Dec 17, 2021
12fa101
fix unit tests
Soar360 Dec 17, 2021
f3823cd
Merge branch 'main' into improve_json_filter
sebastienros Jan 2, 2022
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26 changes: 26 additions & 0 deletions Fluid.Tests/MiscFiltersTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -630,6 +630,32 @@ public async Task JsonShouldIgnoreStaticMembers()
Assert.Equal("{\"Id\":100}", result.ToStringValue());
}

[Fact]
public async Task JsonShouldWriteNullIfDictionaryNotReturnFluidIndexable()
{
var model = new
{
Id = 1,
WithoutIndexable = new DictionaryWithoutIndexableTestObjects(new { }),
Bool = true
};
var options = new TemplateOptions();
options.MemberAccessStrategy.Register(model.GetType());
var input = FluidValue.Create(model, options);

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var result = await MiscFilters.Json(input, new FilterArguments(), new TemplateContext(options));
Assert.Equal("{\"Id\":1,\"WithoutIndexable\":null,\"Bool\":true}", result.ToStringValue());
}

private class DictionaryWithoutIndexableTestObjects : ObjectValueBase
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{
public override FluidValues Type => FluidValues.Dictionary;
public DictionaryWithoutIndexableTestObjects(object value) : base(value)
{

}
}

[Theory]
[InlineData("", "", "", "0")]
[InlineData(123456, "", "", "123456")]
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36 changes: 13 additions & 23 deletions Fluid/Filters/MiscFilters.cs
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Expand Up @@ -627,7 +627,6 @@ private static async ValueTask WriteJson(Utf8JsonWriter writer, FluidValue input
{
await WriteJson(writer, item, ctx);
}

writer.WriteEndArray();
break;
case FluidValues.Boolean:
Expand Down Expand Up @@ -658,7 +657,10 @@ private static async ValueTask WriteJson(Utf8JsonWriter writer, FluidValue input

writer.WriteEndObject();
}

else
{
writer.WriteNullValue();
}
break;
case FluidValues.Object:
var obj = input.ToObjectValue();
Expand All @@ -673,32 +675,17 @@ private static async ValueTask WriteJson(Utf8JsonWriter writer, FluidValue input
foreach (var property in properties)
{
var name = conv(property);
var access = strategy.GetAccessor(type, name);
if (access == null)
var fluidValue = await input.GetValueAsync(name, ctx);
if (fluidValue.IsNil())
{
continue;
}

object value;
if (access is IAsyncMemberAccessor asyncMemberAccessor)
{
value = await asyncMemberAccessor.GetAsync(obj, name, ctx);
}
else
{
value = access.Get(obj, name, ctx);
}

stack ??= new HashSet<object>();
if (stack.Contains(value))
{
value = "circular reference detected.";
}

var fluidValue = FluidValue.Create(value, ctx.Options);
if (fluidValue.IsNil())
if(fluidValue is ObjectValue)
{
continue;
var value = fluidValue.ToObjectValue();
if(stack.Contains(value)) fluidValue = StringValue.Create("circular reference detected.");
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}

writer.WritePropertyName(name);
Expand All @@ -709,7 +696,10 @@ private static async ValueTask WriteJson(Utf8JsonWriter writer, FluidValue input

writer.WriteEndObject();
}

else
{
writer.WriteNullValue();
}
break;
case FluidValues.DateTime:
var objValue = input.ToObjectValue();
Expand Down