@ackee/databless
v3.0.0
Published
A work-in-progress set of yet-bookshelf-only DB helpers and a generic repository.
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Databless
Relational database gateway
Providing means of communications with relational database.
Based on Ackee's former rdgw defaultRepository
module.
Features
- (Bookshelf) automatic column cache and attributes stripping on first model use
- (Bookshelf) No default after-update fetch
- (Bookshelf) Optional Id support (not all models have an id attribute)
- (Bookshelf) Automatic offset/limit, page/pageSize option parse
- (Bookshelf) Automatic options-based support for ordering, e.g.
-id
(sort byid
descending). May be an array of those. Use+
for ascending.
Quickstart
Knex/Bookshelf
const {
// Initializes knex with given options and stores the instance
// under given key. No key means default instance.
initKnex,
// Initializes bookshelf with given options and stores the instance
// under given key. No key means default instance.
initBookshelf,
// To register bookshelf models from a directory
registerBookshelfModels,
// Gets an knex instance by given key. No key means the default instance.
getKnex
// Gets a bookshelf instance by given key. No key means the default instance.
getBookshelf
} = require('rdbgw');
const register = (...args) =>
registerBookshelfModels(
initBookshelf(
initKnex(config.bookshelf.knex.init)
),
...args)
// Read all the models to the bookshelf registry
// All model modules are expected to be a fn (bookshelf): Model
register(`${__dirname}/app/models`);
const {
// General repository
defaultBookshelfRepository,
getBookshelf,
} = require('rdbgw');
const Availability = getBookshelf().model('Availability');
const availabilities = (({ detail, create, updateById, deleteById, bulkCreate, list }) => (
{
list,
bulkCreate,
detail,
create,
updateById,
deleteById,
}
))(defaultBookshelfRepository.bind(getBookshelf(), Availability));
availabilities.create({ from: new Date() });
availabilities.list({});
availabilities.list({}, { qb: (qb) => qb});
/*
defaultBookshelfRepository's API
bulkCreate: (bookshelf, Model, data, options): Promise
create: (bookshelf, Model, data, options): Promise
delete: (bookshelf, Model, query, options): Promise
deleteById: (bookshelf, Model, id, options):
delete(bookshelf, Model, { id }, options)
list: (bookshelf, Model, query, options): Promise
detail: (bookshelf, Model, query, options):
list(bookshelf, Model, query, { ...options, limit: 1, offset: 0 })
detailById: (bookshelf, Model, id, options):
detail(bookshelf, Model, { id }, options)
update: (bookshelf, Model, query, data, options): Promise
updateById: (bookshelf, Model, query, data, options):
update(bookshelf, Model, { id }, data, options)
--
bind: (bookshelf, Model) returns an object with API of above with bound bookshelf instance and Model.
--
.withDetail* helpers - Returns a function of given call, successful call triggers a detail call with given query, returning this result instead.
create.withDetailBy(query)
create.withDetailById(id)
update.withDetailBy(query)
update.withDetailById(id)
*/
Helpers
composeQb
-composeQb(options, qb => ...)
automatic wrap for composing multiple querybuilders in different layers of the application. Prevents qb option overwriting.