openkitten / meow Goto Github PK

A partial update for a document so that can be used with the PATCH request. It is also more bandwidth friendly if MongoDB is hosted externally.

I'm trying to figure out how to use Meow 2.0.2. By now I figured out how to save but I'm totally lost regarding the Queries.

class Test: Model {
    var _id = IdObject()
    var symbol: Symbol
}

class Symbol: Codable {
    var name: String
    var number: Int
}

With this setup I'm trying to find documents by name or number (or even both).

let context = manager?.makeContext()
let query: Query = "symbol.name" == "Test"
let result = try? context?.findOne(Test.self, where: query).wait()

Or trying to have name on toplevel:

class Test: Model {
    var _id = IdObject()
    var name: String
}

let context = manager?.makeContext()
let query: Query = "name" == "Test"
let result = try? context?.findOne(Test.self, where: query).wait()

All of these result in nil. I've also tried to create the corresponding syntax:

[
  "name" : [
    "$eq" : 
    "Test"
  ]
]

Which also didn't work. So I'm wondering... what is the correct way to query for documents in Meow 2.0?

I would be willing to help and write some docs, but I'd need to know how to use Meow first :D

This issue will serve as a central discussion point for the scope of the next major (breaking) version of Meow.

Things to review:

• Non-ObjectId _id's
• Drop the promise to always return the same instance across different queries
• Extend BSONs BSONEncoder and BSONDecoder to support custom encoding/decoding strategies for custom types
• Use the custom encoding strategies to allow for non-lazy references
• Add new Model.updated(with document: Document) API

These would be part of the transaction middleware and on query level instead of model level

This ensures keeping data that hasn't been migrated yet intact.

This also opens up an opportunity for partial models/perspectives.

Custom algorithms?

• Store certain entities for 30 minutes
• Counter based (most frequent)
• combination (most frequent the last day)

When properties are optional I get this error:

error: Templates/MeowVapor.ejs: TypeError: MeowVapor.ejs:10
    8| import ExtendedJSON
    9| 
 >> 10| <% include('Meow') -%>
    11| 
    12| <%
    13| // helpers

Meow:22
    20| 		%>
    21| <%- include('lib/Serializable', {serializable}) %>
 >> 22| <%- window.execute(window.serializableGenerators, serializable) %>
    23| <%
    24| 	}
    25| 

undefined is not an object (evaluating 'serializable.based["Model"]')

The class is:

import Meow
import MongoKitten
import Foundation

final class User: Model {
    var createdAt: Date?
    var updatedAt: Date?
    var deletedAt: Date?
    var active: Bool = true

// sourcery:inline:auto:User.Meow
// sourcery:end
}

Some of the documentation I've seen shows an Embeddable protocol that seems not to exist anymore. Is it possible to embed classes or can only Reference be used now?

http://openkitten.org/docs.html
http://openkitten.org/tutorials.html

• Autosave has been removed, currently. This might be unexpected behaviour
• What happens when atExit triggers during the modification of a model in another thread?

I want to generate this simple user:

import Meow
import MongoKitten
import Foundation

final class User: Model {
    var active: Bool = true

// sourcery:inline:auto:User.Meow
// sourcery:end
}

Ande I get this error

error: Templates/MeowVapor.ejs: ReferenceError: MeowVapor.ejs:160
    158| 
    159| <%_ } -%>
 >> 160|         <%-group%>.get("<%-plural(model.name.toLowerCase())%>", <%-model.name%>.init) { request, subject in
    161|             return try AuthenticationMiddleware.default.respond(to: request, route: MeowRoutes.<%-model.name%>_get(subject)) { request in
    162|                 return try AuthorizationMiddleware.default.respond(to: request, route: MeowRoutes.<%-model.name%>_get(subject)) { request in
    163|                     return subject

Can't find variable: plural

In my project i have multiple services and each service has its own separate database and collections for security reasons. So i would love to still be able to use Meow when models have separated databases not just collections :)

I'm not sure if it's feasible or already on the roadmap or whatever, but support for optional properties in models would be nice. Otherwise it looks really good

Currently, many functions require an array or other specific collection type where it's not necessary.

An example: public static func validateDatabaseIntegrity(problemLimit limit: Int = Int.max, types: [_Model.Type]) throws -> [DatabaseProblem] where types could easily be a Set, AnySequence or any other sequence of _Model.Type.

In addition to this, _Model.Type... might make the API more easy, too

It is not always necessary that an object need an id. So is it possible to make an object without id?

See a user example below. The location dont need an id:

{
	"name": "Mr. Awesome",
	"location": {
		"lat": 10.0,
		"lng": 50.0
	}
}

try Meow.init("mongodb://localhost/meow")
let user = User()
try user.save()
let temp = try User.findOne()
print(temp?.name)

I am running this code in Mac works fine but when I trying to connect remote MongoDB which is running in Ubuntu it prints nil, it means save not works.