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Handle polymorphic relations in assocs resolvers

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This commit is contained in:
Convly 2021-08-18 16:09:27 +02:00
parent e16b36ecb6
commit 0eeaa91c7a
2 changed files with 21 additions and 5 deletions
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2
packages/plugins/graphql/services/schema/builders/type.js
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@ -246,6 +246,8 @@ const addPolymorphicRelationalAttribute = options => {
if (isToManyRelation) {
builder = builder.list;
}
// todo[v4]: How to handle polymorphic relation w/ entity response collection types?
// -> Currently return raw polymorphic entities
const resolve = buildAssociationResolver({
contentTypeUID: contentType.uid,

24
packages/plugins/graphql/services/schema/resolvers/association.js
View File

@ -17,8 +17,12 @@ const buildAssociationResolver = ({ contentTypeUID, attributeName, strapi }) =>
);
}
// todo[v4]: make sure polymorphic relations aren't breaking here
const targetUID = utils.isMedia(attribute) ? 'plugins::upload.file' : attribute.target;
const isMedia = utils.isMedia(attribute);
const isMorph = utils.isMorphRelation(attribute);
const targetUID = isMedia ? 'plugins::upload.file' : attribute.target;
const isToMany = isMedia ? attribute.multiple : attribute.relation.endsWith('Many');
const targetContentType = strapi.getModel(targetUID);
return async (parent, args = {}) => {
@ -27,20 +31,30 @@ const buildAssociationResolver = ({ contentTypeUID, attributeName, strapi }) =>
usePagination: true,
});
// todo[v4]: move the .load to the entity service?
// Since we're using the entity-manager & not the entity-service to load the
// association, we need to apply some transformation to the transformed args object
const entityManagerArgs = {
...omit(['start', 'filters'], transformedArgs),
where: transformedArgs.filters,
offset: transformedArgs.start,
};
// todo[v4]: move the .load to the entity service so we can use the same args everywhere?
const data = await entityManager.load(contentTypeUID, parent, attributeName, entityManagerArgs);
// todo[v4]: Replace with a check on the attribute (handle case where data is null but for an array
if (Array.isArray(data)) {
// If this a polymorphic association, it returns the raw data
if (isMorph) {
return data;
}
// If this is a to-many relation, it returns an object that
// matches what the entity-response-collection's resolvers expect
else if (isToMany) {
return { nodes: data, info: { args: transformedArgs, resourceUID: targetUID } };
}
// Else, it returns an object that matches
// what the entity-response's resolvers expect
return { value: data };
};
};