Questions tagged [repository]
For questions about the implementation of the repository design pattern.
137
questions
1
vote
0answers
32 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).
...
4
votes
2answers
308 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 ...
6
votes
1answer
74 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
1answer
55 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:
<...
2
votes
0answers
49 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
votes
0answers
47 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
59 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
261 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 ...
1
vote
1answer
310 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
105 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
88 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
votes
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 ...
1
vote
1answer
77 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
65 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
vote
0answers
250 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 ...
-2
votes
2answers
42 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
165 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
816 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
244 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
852 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 ...
3
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
50 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.
...
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
110 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.
...
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 ...
1
vote
0answers
216 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
518 views
3
votes
0answers
2k views
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 ...
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 ...
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
60 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
875 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 ...
4
votes
1answer
10k 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 ...
7
votes
2answers
21k views
C# - Entity Framework + Repository pattern + Unit of work pattern
After hours spent on reading various articles about correct way to implement Repository patter & UoW patters I finally think that I have managed to create (hopefully good) implementation.
The ...
3
votes
1answer
305 views
Reduce boilerplate with RepositoryPattern
I'm refactoring a WPF application that uses Repository pattern to access the web services, I've got a tons of repository wrote as
...
3
votes
1answer
80 views
Returning generic types from Repository
Is it bad design if I create repostory with methods that returns generic types. For example in AccountsRepository if I have:
...
1
vote
1answer
10k views
2
votes
1answer
2k views
Generic repository with UoW and simple injector
I'm implementing a generic repository + UoW pattern with EF6 and simple injector. I feel there is room for improvements. Please let me know if I left out some relevant code, I tried to keep it breif.
...
3
votes
0answers
401 views
Generic repository accessor in a unit of work
I'm giving the repository + UoW patterns my first shot on the server side, so bear with me. Also, it's worth mentioning that I haven't used an IoC container on the server side before either, so I'll ...
2
votes
0answers
420 views
1
vote
1answer
388 views
First attempt at Data Driven Design with MVC, to manage a user list
After what I've felt is a sufficient amount of research, I have made my first attempt at a domain driven design MVC project. I would love for you guys to tear it apart and give me pointers to make it ...
3
votes
0answers
2k views
Repository pattern with Specification queries
I'm working on an Android (Java) project which utilizes different analytic metrics (sum of x group by date, sum of x group by id, etc) and I am projecting the data sets into different charts using ...
1
vote
0answers
2k views
Using IoC Container with Entity Framework Repository Pattern
I am using WPF with Entity Framework 6 (DB first), Caliburn.Micro, and MEF.
I am trying to ...
2
votes
1answer
100 views
Handing multiple workflows cleanly in LOB application
Background
I'm about to build a LOB application that resembles an e-commerce solution (without paying and being open to the public). It will be used to receive orders for fulfillment purposes based ...
19
votes
0answers
1k 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 ...
1
vote
0answers
272 views
Rate my implementation of Unif Of Work with Repository pattern and EF Core
I wanted to try something new in regards of design patterns. I have ended up with Unit Of Work with Repository and EF Core. So I just want to display my "real world" solution and maybe hear what you ...
1
vote
2answers
481 views
Users repository
At work we use almost always the same pattern EF, DAL and BLL. I wish to try something new.
This is the project structure:
And here a code sample with only Users entity:
...
