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Loop alias on #applyover function #287

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merged 4 commits into from
Dec 30, 2023
Merged

Loop alias on #applyover function #287

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9893a82
Fix #applyover inside loops; #minatpath returns int.MaxValue if no va…
Courela Dec 1, 2023
5c9d787
Change int.MaxValue to decimal.MaxValue at #minatpath
Courela Dec 1, 2023
72d431b
Merge pull request #3 from WorkMaze/master
Courela Dec 28, 2023
43f6166
Merge branch 'master' into feature/applyover_loop
Courela Dec 29, 2023
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27 changes: 16 additions & 11 deletions JUST.net/JsonTransformer.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -912,11 +912,17 @@ private object ParseFunction(string functionString, State state)
}
}

private object ParseApplyOver(State state, object[] parameters)
private object ParseApplyOver(IList<object> listParameters, State state)
{
object output;
var contextInput = Context.Input;
var input = JToken.Parse(Transform(parameters[0].ToString(), contextInput.ToString()));
JToken tmpContext = Context.Input, contextInput = Context.Input;
if (state.ParentArray.Any())
{
var alias = ParseLoopAlias(listParameters, 3, state.ParentArray.Last().Key.Key);
contextInput = state.GetAliasToken(alias);
}

var input = JToken.Parse(Transform(listParameters.ElementAt(0).ToString(), contextInput.ToString()));
Context.Input = input;

IDictionary<LevelKey, JToken> tmpArray = new Dictionary<LevelKey, JToken>(state.CurrentArrayToken);
Expand All @@ -928,21 +934,21 @@ private object ParseApplyOver(State state, object[] parameters)
state.CurrentScopeToken.Clear();
state.CurrentScopeToken.Add(new LevelKey { Key = "root", Level = 0 }, input);

if (parameters[1].ToString().Trim().Trim('\'').StartsWith("{"))
if (listParameters.ElementAt(1).ToString().Trim().Trim('\'').StartsWith("{"))
{
var jobj = JObject.Parse(parameters[1].ToString().Trim().Trim('\''));
var jobj = JObject.Parse(listParameters.ElementAt(1).ToString().Trim().Trim('\''));
output = new JsonTransformer(Context).Transform(jobj, input);
}
else if (parameters[1].ToString().Trim().Trim('\'').StartsWith("["))
else if (listParameters.ElementAt(1).ToString().Trim().Trim('\'').StartsWith("["))
{
var jarr = JArray.Parse(parameters[1].ToString().Trim().Trim('\''));
var jarr = JArray.Parse(listParameters.ElementAt(1).ToString().Trim().Trim('\''));
output = new JsonTransformer(Context).Transform(jarr, input);
}
else
{
output = ParseFunction(parameters[1].ToString().Trim().Trim('\''), state);
output = ParseFunction(listParameters.ElementAt(1).ToString().Trim().Trim('\''), state);
}
Context.Input = contextInput;
Context.Input = tmpContext;

state.CurrentArrayToken.Clear();
foreach (KeyValuePair<LevelKey, JToken> item in tmpArray)
Expand All @@ -955,7 +961,6 @@ private object ParseApplyOver(State state, object[] parameters)
{
state.CurrentScopeToken.Add(item);
}

return output;
}

Expand Down Expand Up @@ -1049,7 +1054,7 @@ private object GetFunctionOutput(string functionName, IList<object> listParamete
}
else if (functionName == "applyover")
{
output = ParseApplyOver(state, listParameters.ToArray());
output = ParseApplyOver(listParameters, state);
}
else
{
Expand Down
30 changes: 30 additions & 0 deletions UnitTests/ApplyOverTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -61,5 +61,35 @@ public void ReplaceGraveAccentInJsonPathExpressions()

Assert.AreEqual("{\"data\":1}", result);
}

[Test]
public void InsideLoopInputIsLoopElement()
{
var input = "{ \"sections\": [ { \"id\": \"first\", \"label\": \"First section\" }, { \"id\": \"second\", \"label\": \"Second section\" } ] }";
var transformer = "{ \"areas\": { \"#loop($.sections)\": { \"#eval(#currentvalueatpath($.id))\": \"#applyover({ 'description': '#valueof($.label)' }, '#valueof($)')\" } } }";

var context = new JUSTContext
{
EvaluationMode = EvaluationMode.Strict
};
var result = new JsonTransformer(context).Transform(transformer, input);

Assert.AreEqual("{\"areas\":[{\"first\":{\"description\":\"First section\"}},{\"second\":{\"description\":\"Second section\"}}]}", result);
}

[Test]
public void InsideNestedLoopsWithAlias()
{
var input = "{ \"headers\": [ { \"id\": \"first\", \"label\": \"First header\", \"sections\": [{ \"title\": \"first section first header\" },{ \"title\": \"second section first header\" }] }, { \"id\": \"second\", \"label\": \"Second header\", \"sections\": [{ \"title\": \"first section second header\" },{ \"title\": \"second section second header\" }] }] }";
var transformer = "{ \"areas\": { \"#loop($.headers,outside_alias)\": { \"#eval(#currentvalueatpath($.id))\": { \"#loop($.sections,inside_alias)\": { \"section\": \"#applyover({ 'description': '#valueof($.label)' }, '#valueof($)',outside_alias)\" } } } } }";

var context = new JUSTContext
{
EvaluationMode = EvaluationMode.Strict
};
var result = new JsonTransformer(context).Transform(transformer, input);

Assert.AreEqual("{\"areas\":[{\"first\":[{\"section\":{\"description\":\"First header\"}},{\"section\":{\"description\":\"First header\"}}]},{\"second\":[{\"section\":{\"description\":\"Second header\"}},{\"section\":{\"description\":\"Second header\"}}]}]}", result);
}
}
}