Custom query variable names

[rebing]

Currently the variable names have to exactly match the argument names.

Valid: query($id:Int){user(id:$id){...
Invalid: query($userId:Int){user(id:$userId){...

[Towerful]

When I was trying to get an eager loading graphql library working, I came up with the following:

public function getFieldSelection(ResolveInfo $info, $depth = 0)
{
    $fields = [];

    /** @var Field $fieldAST */
    foreach ($info->fieldASTs as $fieldAST) {
        $fields = array_merge_recursive($fields, $this->foldSelectionSet($fieldAST->selectionSet, $info, $depth));
    }

    return $fields;
}

private function foldSelectionSet(SelectionSet $selectionSet, ResolveInfo $info, $descend)
{
    $fields = [];

    foreach ($selectionSet->selections as $selectionAST) {
        if ($selectionAST instanceof Field) {
            $name = $this->nameOf($selectionAST)
            if($descend > 0 && !empty($selectionAST->selectionSet)) {
                $selection = $this->foldSelectionSet($selectionAST->selectionSet, $descend - 1);
                $selection['__args'] = $this->getArguments($selectionAST, $info);
                $fields[$name] = $field;
            } else {
                $fields[$name] = true;
            }
        } else if ($selectionAST instanceof FragmentSpread) {
            $spreadName = $this->nameOf($selectionAST);
            if (isset($info->fragments[$spreadName])) {
                /** @var FragmentDefinition $fragment */
                $fragment = $info->fragments[$spreadName];
                $fields += $this->foldSelectionSet($fragment->selectionSet, $descend);
            }
        }
    }

    return $fields;
}

//helps tidy up the code
private function nameOf($nv) 
{
    return $nv->name->value;
}


private function getArguments(Field $selectionAST, ResolveInfo $info) 
{
    //get the arguments for the current AST from the query.
    $args = [];
    foreach ($selectionAST->arguments as $argument) {
        $graphName = $this->nameOf($argument);
        $queryName = $this->nameOf($argument->value);
        $args[$graphName] = $info->variableValues[$queryName];
    }
    return $args;
}

This is the whats happening inside ResolveInfo->getFieldSelection() method.
This version of the methods appends an __args index to each depth of the array, and pulls the appropriate argument from the ResolveInfo.

Slightly altered it to fit your needs, so I havent tested it.
But you should be able to drop these into \Support\SelectFields class, and use it instead of the ResolveInfo->getFieldSelection();
Altho, it might be worth wrapping ResolveInfo into a decorator that provides the functionality.

Anyway, then its just a matter of adapting the rest to plumb the arguments in...

I'm going to play around tomorrow & see what I can do!

[rebing]

Hi, it seems I've already fixed the problem, but forgot to close the issue. Thanks for trying to help though :)