private bool TryMergePatches(string id, PatchRequest patchRequest)
{
if (DeferredCommandsDictionary.TryGetValue((id, CommandType.PATCH, null), out ICommandData command) == false)
{
return(false);
}
DeferredCommands.Remove(command);
// We'll overwrite the DeferredCommandsDictionary when calling Defer
// No need to call DeferredCommandsDictionary.Remove((id, CommandType.PATCH, null));
var oldPatch = (PatchCommandData)command;
var newScript = oldPatch.Patch.Script + '\n' + patchRequest.Script;
var newVals = oldPatch.Patch.Values;
foreach (var kvp in patchRequest.Values)
{
newVals[kvp.Key] = kvp.Value;
}
Advanced.Defer(new PatchCommandData(id, null, new PatchRequest
{
Script = newScript,
Values = newVals
}, null));
return(true);
}
public void Patch <T, U>(string id, Expression <Func <T, U> > path, U value)
{
var pathScript = path.CompileToJavascript();
var patchRequest = new PatchRequest
{
Script = $"this.{pathScript} = args.val_{_valsCount};",
Values = { [$"val_{_valsCount}"] = value }
};
_valsCount++;
if (TryMergePatches(id, patchRequest) == false)
{
Advanced.Defer(new PatchCommandData(id, null, patchRequest, null));
}
}
public void Patch <T, U>(string id, Expression <Func <T, IEnumerable <U> > > path,
Expression <Func <JavaScriptArray <U>, object> > arrayAdder)
{
var extension = new JavascriptConversionExtensions.CustomMethods
{
Suffix = _customCount++
};
var pathScript = path.CompileToJavascript();
var adderScript = arrayAdder.CompileToJavascript(
new JavascriptCompilationOptions(
JsCompilationFlags.BodyOnly | JsCompilationFlags.ScopeParameter,
new LinqMethods(), extension));
var patchRequest = new PatchRequest
{
Script = $"this.{pathScript}{adderScript}",
Values = extension.Parameters
};
if (TryMergePatches(id, patchRequest) == false)
{
Advanced.Defer(new PatchCommandData(id, null, patchRequest, null));
}
}