Clean up Serializer
This commit is contained in:
Toby Zerner
parent
aa2754d458
commit
8584d1de9b
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@ -19,6 +19,7 @@ use Tobyz\JsonApiServer\Schema\Attribute;
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use Tobyz\JsonApiServer\Schema\Field;
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use Tobyz\JsonApiServer\Schema\HasMany;
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use Tobyz\JsonApiServer\Schema\HasOne;
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use Tobyz\JsonApiServer\Schema\Meta;
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use Tobyz\JsonApiServer\Schema\Relationship;
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final class Serializer
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@ -60,21 +61,6 @@ final class Serializer
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];
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}
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private function resolveDeferred(): void
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{
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$i = 0;
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while (count($this->deferred)) {
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foreach ($this->deferred as $k => $resolve) {
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$resolve();
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unset($this->deferred[$k]);
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}
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if ($i++ > 10) {
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throw new RuntimeException('Too many levels of deferred values.');
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}
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}
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}
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private function addToMap(ResourceType $resourceType, $model, array $include): array
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{
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$adapter = $resourceType->getAdapter();
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@ -85,125 +71,57 @@ final class Serializer
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$id = $adapter->getId($model)
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);
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$this->map[$key] = $this->map[$key] ?? [
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'type' => $type,
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'id' => $id,
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'fields' => [],
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'links' => [],
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'meta' => []
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];
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if (isset($this->map[$key])) {
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return $this->map[$key];
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}
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$this->map[$key] = [
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'type' => $type,
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'id' => $id,
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'fields' => [],
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'links' => [
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'self' => new Structure\Link\SelfLink($url = $this->resourceUrl($type, $id)),
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],
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'meta' => $this->meta($schema->getMeta(), $model)
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];
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$url = $this->context->getApi()->getBasePath()."/$type/$id";
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$fields = $this->sparseFields($type, $schema->getFields());
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foreach ($fields as $field) {
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$name = $field->getName();
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if (isset($this->map[$key]['fields'][$name])) {
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continue;
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}
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if (! evaluate($field->getVisible(), [$model, $this->context])) {
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continue;
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}
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if ($field instanceof Schema\Attribute) {
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$this->setAttribute($key, $field, $resourceType, $model);
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} elseif ($field instanceof Schema\Relationship) {
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$this->setRelationship($key, $field, $resourceType, $model, $include, $url);
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if ($field instanceof Attribute) {
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$this->resolveAttribute($key, $field, $resourceType, $model);
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} elseif ($field instanceof Relationship) {
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$this->resolveRelationship($key, $field, $resourceType, $model, $include, $url);
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}
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}
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$this->map[$key]['links']['self'] = new Structure\Link\SelfLink($url);
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$this->map[$key]['meta'] = $this->meta($schema->getMeta(), $model);
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return $this->map[$key];
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}
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private function setAttribute(string $key, Attribute $field, ResourceType $resourceType, $model): void
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private function key(string $type, string $id): string
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{
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$this->defer($this->getAttributeValue($field, $resourceType, $model), function ($value) use ($key, $field) {
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if ($value instanceof DateTimeInterface) {
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$value = $value->format(DateTime::RFC3339);
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}
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$this->map[$key]['fields'][$name = $field->getName()] = new Structure\Attribute($name, $value);
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});
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return $type.':'.$id;
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}
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private function getAttributeValue(Attribute $field, ResourceType $resourceType, $model)
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private function resourceUrl(string $type, string $id): string
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{
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return ($getCallback = $field->getGetCallback())
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? $getCallback($model, $this->context)
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: $resourceType->getAdapter()->getAttribute($model, $field);
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return $this->context->getApi()->getBasePath()."/$type/$id";
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}
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private function setRelationship(string $key, Relationship $field, ResourceType $resourceType, $model, array $include, string $url): void
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/**
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* @return Structure\Internal\RelationshipMember[]
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*/
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private function meta(array $items, $model): array
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{
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$name = $field->getName();
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$isIncluded = isset($include[$name]);
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$nestedInclude = $include[$name] ?? [];
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ksort($items);
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$members = array_merge(
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$this->relationshipLinks($field, $url),
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$this->meta($field->getMeta(), $model)
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);
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if (! $isIncluded && ! $field->hasLinkage()) {
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if ($relationship = $this->emptyRelationship($field, $members)) {
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$this->map[$key]['fields'][$name] = $relationship;
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}
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return;
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}
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$value = $this->getRelationshipValue($field, $resourceType, $model, ! $isIncluded);
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if ($field instanceof Schema\HasOne) {
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$this->defer($value, function ($value) use ($key, $field, $name, $isIncluded, $nestedInclude, $members) {
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if (! $value) {
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$relationship = new Structure\ToNull($name, ...$members);
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} else {
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$identifier = $isIncluded
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? $this->addRelated($field, $value, $nestedInclude)
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: $this->relatedResourceIdentifier($field, $value);
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$relationship = new Structure\ToOne($name, $identifier, ...$members);
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}
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$this->map[$key]['fields'][$name] = $relationship;
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});
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} elseif ($field instanceof Schema\HasMany) {
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$this->defer($value, function ($value) use ($key, $field, $name, $isIncluded, $nestedInclude, $members) {
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$identifiers = array_map(function ($relatedModel) use ($field, $isIncluded, $nestedInclude) {
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return $isIncluded
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? $this->addRelated($field, $relatedModel, $nestedInclude)
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: $this->relatedResourceIdentifier($field, $relatedModel);
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}, $value);
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$this->map[$key]['fields'][$name] = new Structure\ToMany(
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$name,
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new Structure\ResourceIdentifierCollection(...$identifiers),
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...$members
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);
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});
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}
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}
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private function getRelationshipValue(Relationship $field, ResourceType $resourceType, $model, bool $linkage)
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{
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if ($getCallback = $field->getGetCallback()) {
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return $getCallback($model, $this->context);
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}
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if ($field instanceof HasOne) {
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return $resourceType->getAdapter()->getHasOne($model, $field, $linkage, $this->context);
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}
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if ($field instanceof HasMany) {
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return $resourceType->getAdapter()->getHasMany($model, $field, $linkage, $this->context);
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}
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return null;
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return array_map(function (Meta $meta) use ($model) {
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return new Structure\Meta($meta->getName(), ($meta->getValue())($model, $this->context));
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}, $items);
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}
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private function sparseFields(string $type, array $fields): array
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@ -219,11 +137,60 @@ final class Serializer
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return $fields;
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}
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private function defer($value, $callback): void
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private function resolveAttribute(string $key, Attribute $field, ResourceType $resourceType, $model): void
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{
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$value = $this->getAttributeValue($field, $resourceType, $model);
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$this->whenResolved($value, function ($value) use ($key, $field) {
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if ($value instanceof DateTimeInterface) {
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$value = $value->format(DateTime::RFC3339);
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}
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$this->setField($key, $field, new Structure\Attribute($field->getName(), $value));
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});
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}
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private function resolveRelationship(string $key, Relationship $field, ResourceType $resourceType, $model, array $include, string $url): void
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{
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$name = $field->getName();
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$linkageOnly = ! isset($include[$name]);
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$nestedInclude = $include[$name] ?? null;
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$members = array_merge(
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$this->relationshipLinks($url, $field),
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$this->meta($field->getMeta(), $model)
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);
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if ($linkageOnly && ! $field->hasLinkage()) {
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if ($relationship = $this->emptyRelationship($field, $members)) {
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$this->setField($key, $field, $relationship);
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}
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return;
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}
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$value = $this->getRelationshipValue($field, $resourceType, $model, $linkageOnly);
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$this->whenResolved($value, function ($value) use ($key, $field, $nestedInclude, $members) {
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if ($structure = $this->buildRelationship($field, $value, $nestedInclude, $members)) {
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$this->setField($key, $field, $structure);
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}
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});
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}
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private function getAttributeValue(Attribute $field, ResourceType $resourceType, $model)
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{
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if ($getCallback = $field->getGetCallback()) {
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return $getCallback($model, $this->context);
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}
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return $resourceType->getAdapter()->getAttribute($model, $field);
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}
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private function whenResolved($value, $callback): void
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{
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if ($value instanceof Deferred) {
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$this->deferred[] = function () use (&$data, $value, $callback) {
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$this->defer($value->resolve(), $callback);
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$this->whenResolved($value->resolve(), $callback);
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};
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return;
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}
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@ -231,22 +198,20 @@ final class Serializer
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$callback($value);
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}
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private function emptyRelationship(Schema\Relationship $field, array $members): ?Structure\EmptyRelationship
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private function setField(string $key, Field $field, $value): void
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{
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if (! $members) {
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return null;
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}
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return new Structure\EmptyRelationship($field->getName(), ...$members);
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$this->map[$key]['fields'][$field->getName()] = $value;
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}
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/**
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* @return Structure\Internal\RelationshipMember[]
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*/
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private function relationshipLinks(Schema\Relationship $field, string $url): array
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private function relationshipLinks(string $url, Relationship $field): array
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{
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return [];
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// if (! $field->hasUrls()) {
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return [];
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// return [];
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// }
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// return [
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@ -255,33 +220,117 @@ final class Serializer
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// ];
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}
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private function addRelated(Schema\Relationship $field, $model, array $include): Structure\ResourceIdentifier
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private function emptyRelationship(Relationship $field, array $members): ?Structure\EmptyRelationship
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{
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$relatedResource = is_string($field->getType())
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? $this->context->getApi()->getResourceType($field->getType())
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: $this->resourceForModel($model);
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if (! $members) {
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return null;
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}
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return new Structure\EmptyRelationship($field->getName(), ...$members);
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}
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private function getRelationshipValue(Relationship $field, ResourceType $resourceType, $model, bool $linkageOnly)
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{
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if ($getCallback = $field->getGetCallback()) {
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return $getCallback($model, $linkageOnly, $this->context);
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}
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if ($field instanceof HasOne) {
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return $resourceType->getAdapter()->getHasOne($model, $field, $linkageOnly, $this->context);
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}
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if ($field instanceof HasMany) {
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return $resourceType->getAdapter()->getHasMany($model, $field, $linkageOnly, $this->context);
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}
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return null;
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}
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private function buildRelationship(Relationship $field, $value, ?array $nestedInclude, array $members): ?Structure\Internal\ResourceField
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{
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$name = $field->getName();
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if ($field instanceof HasOne) {
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if (! $value) {
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return new Structure\ToNull($name, ...$members);
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}
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return new Structure\ToOne(
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$name,
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$this->addRelatedResource($field, $value, $nestedInclude),
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...$members
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);
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}
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if ($field instanceof HasMany) {
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$identifiers = array_map(function ($relatedModel) use ($field, $nestedInclude) {
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return $this->addRelatedResource($field, $relatedModel, $nestedInclude);
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}, $value);
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return new Structure\ToMany(
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$name,
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new Structure\ResourceIdentifierCollection(...$identifiers),
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...$members
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);
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}
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return null;
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}
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private function addRelatedResource(Relationship $field, $model, ?array $include): Structure\ResourceIdentifier
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{
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$relatedResourceType = $this->resourceTypeForModel($field, $model);
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if ($include === null) {
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return $this->resourceIdentifier([
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'type' => $relatedResourceType->getType(),
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'id' => $relatedResourceType->getAdapter()->getId($model)
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]);
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}
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return $this->resourceIdentifier(
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$this->addToMap($relatedResource, $model, $include)
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$this->addToMap($relatedResourceType, $model, $include)
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);
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}
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private function resourceForModel($model): ResourceType
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private function resourceTypeForModel(Relationship $field, $model): ResourceType
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{
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foreach ($this->context->getApi()->getResourceTypes() as $resource) {
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if ($resource->getAdapter()->represents($model)) {
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return $resource;
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if (is_string($type = $field->getType())) {
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return $this->context->getApi()->getResourceType($type);
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}
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foreach ($this->context->getApi()->getResourceTypes() as $resourceType) {
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if ($resourceType->getAdapter()->represents($model)) {
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return $resourceType;
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}
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}
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throw new RuntimeException('No resource defined to represent model of type '.get_class($model));
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throw new RuntimeException('No resource type defined to represent model '.get_class($model));
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}
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private function resourceIdentifier(array $data): Structure\ResourceIdentifier
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{
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return new Structure\ResourceIdentifier($data['type'], $data['id']);
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}
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private function resolveDeferred(): void
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{
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$i = 0;
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while (count($this->deferred)) {
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foreach ($this->deferred as $k => $resolve) {
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$resolve();
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unset($this->deferred[$k]);
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}
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if ($i++ > 10) {
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throw new RuntimeException('Too many levels of deferred values');
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}
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}
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}
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private function resourceObjects(array $items): array
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{
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return array_map(function ($data) {
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return $this->resourceObject($data);
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}, $items);
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return array_map([$this, 'resourceObject'], $items);
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}
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private function resourceObject(array $data): Structure\ResourceObject
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@ -294,39 +343,4 @@ final class Serializer
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...array_values($data['meta'])
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);
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}
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private function resourceIdentifier(array $data): Structure\ResourceIdentifier
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{
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return new Structure\ResourceIdentifier($data['type'], $data['id']);
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}
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private function relatedResourceIdentifier(Schema\Relationship $field, $model): Structure\ResourceIdentifier
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{
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$type = $field->getType();
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$relatedResource = is_string($type)
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? $this->context->getApi()->getResourceType($type)
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: $this->resourceForModel($model);
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return $this->resourceIdentifier([
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'type' => $relatedResource->getType(),
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'id' => $relatedResource->getAdapter()->getId($model)
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]);
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}
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/**
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* @return Structure\Internal\RelationshipMember[]
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*/
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private function meta(array $items, $model): array
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{
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ksort($items);
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return array_map(function (Schema\Meta $meta) use ($model) {
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return new Structure\Meta($meta->getName(), ($meta->getValue())($model, $this->context));
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}, $items);
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}
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private function key(string $type, string $id): string
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{
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return $type.':'.$id;
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}
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}
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