Questions tagged [repository]

For questions about the implementation of the repository design pattern.

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2
votes
1answer
50 views

Is it good way to user dao when assembling dto to entity or not?

I have User entity that has relationship to other entities(Order,Profile) When I assemble entity from dto and back I need assemble order and profile entity too. User entity: ...
1
vote
1answer
106 views

Is My Controller too Coupling?

To put it in context, I had the assignment to do for a job interview in Node.JS, which basically making CRUD with products (and it have certain conditions). The assignment was well-understandable, and ...
3
votes
2answers
208 views

Should i throw exceptions in the service layer or repository, and catch it on the controller? [closed]

I read some answers here on stack exchange, but none really "hits the nail on the head" about where to throw exceptions, where I shouldn't and where to catch them. the idea that an exception ...
0
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0answers
206 views

Dapper UOW with Multiple Databases

Scenarios / Requirements: I am working on to convert the existing WebAPI Data Layer to Dapper from EF. The following are the ...
0
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0answers
41 views

Should my class "data" dependency be a repository, adapter or another pattern?

I have a class called CheckUserUltraSecretInformation that is kind of a Use Case in "clean architecture terms", this class has a dependency that is ...
2
votes
1answer
87 views

Is repository pattern violated while using IQueryable outside of it?

I am writting an API backend application using .NET Core and Visual Studio. Here is the solution structure: [ProjectName] - Solution ...
2
votes
1answer
67 views

Reducing Inventory Quantity When Order Is Being Processed

I've got a method which removes quantity from inventory when an order is completed. If there is not enough inventory quantity available, the order completion fails and the sql transaction is rolled ...
4
votes
2answers
758 views

Repository pattern with Unit of work using ADO.NET in C# to authenticate user from database

So I am using the latest version of Dapper and it works great for mapping my POCO classes but there are some scenarios where I need to return a DataSet instead of ...
1
vote
0answers
38 views

Monitor room repository for livedata changes and update views

I have built a quiz app. It is my first project so the purpose is to learn app development at this stage. There are two key things which I am wondering how to do better (the app is fully functional). ...
2
votes
1answer
373 views

Handle database validation (exists, unique constraint, etc) [closed]

Let's assume you are writing a REST Api with a common structure like Controller > Service > Repository > Database. In the database there's a table with a column with a unique constraint: <...
6
votes
1answer
81 views

Expiring key/value repository. Java

The following code is in-memory repository that stores key/value pairs. It will be used on our server to keep information about active clients. Clients send keepalive messages to indicate that them ...
2
votes
0answers
230 views

Simple Sqlite-driven WinForms app in C# 7.0 - database interaction code

Description This is a simple "demo" app designed to help gain familiarity with interacting with an Sqlite database from C#, particularly storing images as blobs. The database has a single ...
2
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0answers
52 views

A UserService method that calls the UserRepository a few times

I'm trying to implement some domain driven design architecture, such as a repository to talk to the database, and a service that talks to the repository. I have an action where I want to see if a User ...
4
votes
0answers
62 views

Is there a better way to unit test a repository for a large aggregate root?

In our project we use domain-driven design and our customer aggregate root is large. The unit tests for the aggregate root itself are simple (~50 or so tests), but I am struggling with the repository ...
3
votes
1answer
643 views

Is it okay to use multiple repositories from inside a single service implementation in Spring?

I currently have two entities, Adress and Company. They both have DTOs to perform CRUD ...
3
votes
1answer
1k views

Resository Pattern and Unit of Work with ADO.net

I am trying to implement the Repository Pattern with a Unit of work but I don't know if I am on the right direction. This is my Model: ...
1
vote
1answer
512 views

Laravel 5.8: prevent duplicated code

Sometimes we have this code blocks that is repeated in the same controller again and again, I reviewed the Repository Pattern but I didn't understand how to deal with some kind of these duplication. ...
4
votes
3answers
115 views

Method that fetches rows from database and maps it to a Model class with SqlDataReader

So, I have a project that has a lot of methods that look alike. In the below method as you can see it just fetches a bunch of rows from database and maps it to a model class. In this case ...
3
votes
1answer
89 views

Refactoring code to implement clean code using repositories

I've been refactoring code today, try to implement a clean code setup using repositories. Is this on track? Can any improvements be made? ...
2
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0answers
55 views

Unit testing the code that is written using repository pattern

I have implemented my business logic using the repository pattern. I have an Approve method in my controller. I am calling the service method ...
11
votes
4answers
18k views

Disposing the Context in the Repository pattern

I have a question about the Repository pattern: ...
1
vote
1answer
104 views

Simple todo list VanillaJS - repository pattern

I'm new in JavaScript, so I was looking for some reviews and advice for better code quality. ...
2
votes
0answers
82 views

Swift MVVM: Repositories - loading entities and dependency injection

I create a lexikon and a navigation for ZOO. I use MVVM architecture supported by ReactiveSwift. I have a few questions about my practises and whether I could write my repositories better and more ...
1
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0answers
283 views

C# Generic Repository and Unit of Work Implementation for Northwind [closed]

I have created 3 projects to implement layered architecture design mainly the - Presentation Layer (Web) - Domain Model Layer - Infrastructure Layer For simplicity, I have only two domain model ...
4
votes
1answer
12k views

Generic Repository without Entity Framework

Almost all of generic repository pattern tutorials were making use of EF, so I haven't got much sources to compare my code with. Here is what I have done. Could you please suggest me to fix my wrongs ...
1
vote
1answer
55 views

Laravel function to add a supplier, and associated addresses and contacts

I have a function addSupplier() that adds a supplier. Each supplier has multiple addresses and each address has multiple contacts. ...
-2
votes
2answers
44 views

Initialize global repository or in forms? [closed]

Until now we have always initialized the repositories, that containing MySql functions, at the beginning of each Form Something like that Form example code: <...
4
votes
1answer
177 views

User controller for a .net core WebAPI dating app

I have this user controller that follows the repository pattern. It works perfect, but is it easy to understand? Is this good quality work? ...
4
votes
3answers
1k views

Pass IEnumerable<T> as an argument of method and repository pattern

I've seen tutorials of Unit Testing and I've never seen that IEnumerable<T> used as an argument of method. All authors use ...
-2
votes
1answer
273 views

Repository Pattern and SOLID principles [closed]

I have written the following Repository in C#, using NetCore 2.2 and EF Core. I was thinking how to write properly the Search method according to the SOLID principles. This code gives a null ...
2
votes
0answers
939 views

Repository + Unit Of Work Pattern in WebAPI

I am refactoring my existing product's webapi part of the solution. Current Repo pattern does not allow me to add custom functions to a specific repository. In result, most of the functions directly ...
1
vote
0answers
2k views

Transaction integrity in asp.net core with entity framework and generic repository

I am not very experienced in Entity Framework, I previously used ADO.Net and Dapper for data persistence. For now, I only read Microsoft docs and watched a few video tutorials. I tried to stick to ...
4
votes
0answers
1k views

Generic Unit of Work implementation

I am implementing the unit of work pattern to be used in the logic layer of my application. The goal is to abstract away the tasks of managing transactions / connections. My implementation relies ...
1
vote
1answer
48 views

Showing data for a chat with another user

I have a get route to show the data for a chat with another user. If an existing chat exists I want to return that, otherwise create a new chat and return it. ...
2
votes
1answer
114 views

Repository of trainers

This is my first asp.net core web api and i did followed the Repository pattern but i don't know whether this approach is good practice. ...
8
votes
1answer
12k views

MVC 5 & EF 6 - Repository & Unit of Work Pattern

I have been looking through Code Review on the subject of Unit of Work and Repository patterns and realised that my implementation appears to provide very similar functionality but in reverse class ...
1
vote
0answers
217 views

E-commerce site for posting advertisements

I am developing an e-commerce website in ASP.NET MVC. Users can post advertisements of different types on the site. I am using inheritance to define my Ad types, and this review is mainly about ...
3
votes
0answers
3k views

Structure and Implementation of Generic Repository and Unit of Work patterns with Dapper and SqlTransactions

I am attempting to update some legacy code that I work with, but my knowledge of data access is limited to a basic use of Entity Framework and simple Dapper. After some research, I have a loose ...
3
votes
1answer
55 views

Registering an event participant, using Entity Framework and several associated models

I have a method that is responsible for receiving an object and perform the information saved with Entity Framwork, using the Repository pattern. The issue is that this object is, basically, a DTO. ...
1
vote
1answer
553 views
5
votes
2answers
4k views

Repository pattern along with EF and Unit of work

I'm new to this Repository pattern and have seen lot of repository pattern + UoW implementations all over the internet and I'm not able to reach to a conclusion as to which of them is correct . After ...
19
votes
0answers
2k views

Repository pattern in Rust

I'm looking to add a thin layer of abstraction for database interaction in my application. I'm not really looking for a full blown ORM or advanced query builder. I am familiar with Diesel, but its ...
3
votes
0answers
2k views
1
vote
2answers
161 views

Check repository for a nested entity

I have a Product entity and a ProductCategory entity. Given the Product entity, my ...
1
vote
1answer
1k views

ASP.NET Identity 2.0 UserManager alongside with UnitOfWork and Service-Locator anti-pattern

I was wondering whether it is a good aproach to have Identity 2.0 UserManager next to UnitOfWork pattern? I am using ...
2
votes
0answers
1k views

Entity Framework with two databases (with UoW, Repository and Service Layer)

I have two databases: one for a warehouse, second for the office (The db design is out of the scope of this question). There are MANY cross-database funtions. One of those functions is ...
0
votes
1answer
65 views

Repository layer for MongoDB

I've implemented a quick and dirty repository to save and insert users to a MongoDB. As you can see, it just inserts one and finds one. Not a rocket. The thing is I don't really know what are the ...
0
votes
1answer
888 views

Entity Framework MVC updating db using a repository method [closed]

I have inherited this code from a legacy project, and it is throwing a New transaction is not allowed because there are other threads running in the session. error. Now I know the problem here is ...
1
vote
1answer
926 views

Instantiate repository classes dynamically

I'm curious about the best way to instantiate my repositories. Currently they're in the main controllers constructor method. I was thinking making separate controllers for inbounds, outbounds, ...
5
votes
3answers
5k views

Generic repository pattern

Please have a through look my custom implementation of generic repository pattern and suggest anything I may be lacking. I am using a generic interface with 6 methods I'll be using a repository class ...