/**
* Entry point for the `walkQuery` routine. Execution bounces between here, where the reducer's ->visit() method
* is invoked, and `walkQuery` where we send in the scores from the `visit` call.
*
* @param Query $query
* @param AbstractType $currentLevelSchema
* @param AbstractQueryVisitor $reducer
*/
protected function doVisit(Query $query, $currentLevelSchema, $reducer)
{
if (!$currentLevelSchema instanceof AbstractObjectType || !$currentLevelSchema->hasField($query->getName())) {
return;
}
if ($operationField = $currentLevelSchema->getField($query->getName())) {
$coroutine = $this->walkQuery($query, $operationField);
if ($results = $coroutine->current()) {
$queryCost = 0;
while ($results) {
// initial values come from advancing the generator via ->current, subsequent values come from ->send()
list($queryField, $astField, $childCost) = $results;
/**
* @var Query|FieldAst $queryField
* @var Field $astField
*/
$cost = $reducer->visit($queryField->getKeyValueArguments(), $astField->getConfig(), $childCost);
$queryCost += $cost;
$results = $coroutine->send($cost);
}
}
}
}
protected function resolveQuery(AstQuery $query)
{
$schema = $this->executionContext->getSchema();
$type = $query instanceof AstMutation ? $schema->getMutationType() : $schema->getQueryType();
$field = new Field(['name' => $query instanceof AstMutation ? 'mutation' : 'query', 'type' => $type]);
if (self::TYPE_NAME_QUERY == $query->getName()) {
return [$this->getAlias($query) => $type->getName()];
}
$this->resolveValidator->assetTypeHasField($type, $query);
$value = $this->resolveField($field, $query);
return [$this->getAlias($query) => $value];
}
public function testQuery()
{
$arguments = [new Argument('limit', new Literal('10', new Location(1, 1)), new Location(1, 1))];
$fields = [new Field('id', null, [], new Location(1, 1))];
$query = new Query('ships', 'lastShips', $arguments, $fields, new Location(1, 1));
$this->assertEquals('ships', $query->getName());
$this->assertEquals('lastShips', $query->getAlias());
$this->assertEquals($arguments, $query->getArguments());
$this->assertEquals(['limit' => '10'], $query->getKeyValueArguments());
$this->assertEquals($fields, $query->getFields());
$this->assertTrue($query->hasArguments());
$this->assertTrue($query->hasFields());
$query->setFields([]);
$query->setArguments([]);
$this->assertEmpty($query->getArguments());
$this->assertEmpty($query->getFields());
$this->assertEmpty($query->getKeyValueArguments());
$this->assertFalse($query->hasArguments());
$this->assertFalse($query->hasFields());
$query->addArgument(new Argument('offset', new Literal(10, new Location(1, 1)), new Location(1, 1)));
$this->assertTrue($query->hasArguments());
}
