Questions tagged [repository]
For questions about the implementation of the repository design pattern.
145
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4
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1
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127
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Unit of Work & Repository Pattern - Injecting UoW into Repository Base
Description
I am implementing the Unit of Work & Repository Pattern with Dapper as my ORM and PostgreSQL as the relational database. I have seen examples of UoW where:
The UoW class creates an ...
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2
votes
1
answer
111
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Command handlers in node.js
Description
This javascript code uses tmi.js to listen for chat messages in a Twitch chat and perform certain actions depending on their content. In the sample code ...
- 741
1
vote
0
answers
39
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Frontend to handle course planning and administration [closed]
I read up on and dived into the Repository pattern for a project I am working on.
I have understood that the repository abstracts the actual access to any form of storage for my data model. What I was ...
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13
votes
5
answers
20k
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Disposing the Context in the Repository pattern
I have a question about the Repository pattern:
...
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1
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0
answers
110
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.NET Repository Pattern
I'm currently in the process of defining some framework, one of the first things that I thought I could start with was defining some repository pattern/layer.
I generally wanted some input on it, ...
- 187
0
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1
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366
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Generic Base Repository implementation with Unit of Work in C#
I have seen a lot of Repository pattern implementations with Unit of Work. The simplest way of implementing this I came across is using hard-coded repos (such as this one), while the way recommended ...
- 670
2
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1
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116
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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:
...
- 822
1
vote
1
answer
118
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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 ...
- 1,156
4
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2
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6k
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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 ...
- 881
0
votes
0
answers
2k
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 ...
- 121
0
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0
answers
43
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 ...
- 273
2
votes
1
answer
931
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
...
- 5,093
2
votes
1
answer
88
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 ...
- 16.8k
4
votes
2
answers
2k
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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 ...
- 56k
1
vote
0
answers
53
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).
...
- 53
3
votes
1
answer
1k
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:
<...
- 554
6
votes
1
answer
112
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 ...
- 5,512
2
votes
0
answers
482
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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 ...
- 394
2
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0
answers
73
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 ...
- 291
4
votes
0
answers
98
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 ...
- 11.6k
3
votes
1
answer
3k
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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 ...
- 315
3
votes
1
answer
1k
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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:
...
- 26.6k
1
vote
1
answer
711
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.
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- 201
4
votes
3
answers
815
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 ...
- 5,093
3
votes
1
answer
112
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?
...
- 7,254
2
votes
0
answers
63
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 ...
- 7,254
1
vote
1
answer
149
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.
...
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2
votes
0
answers
125
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 ...
4
votes
1
answer
15k
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 ...
- 105
1
vote
1
answer
66
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.
...
CommunityBot
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-2
votes
2
answers
57
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:
<...
- 74.9k
4
votes
1
answer
201
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?
...
- 10.4k
4
votes
3
answers
3k
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 ...
- 924
-2
votes
1
answer
315
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 ...
- 50.1k
2
votes
0
answers
1k
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 ...
- 121
1
vote
0
answers
2k
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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 ...
CommunityBot
- 1
4
votes
0
answers
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 ...
- 141
1
vote
1
answer
49
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.
...
- 186
2
votes
1
answer
127
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.
...
- 3,236
8
votes
1
answer
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 ...
- 183
1
vote
0
answers
236
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 ...
- 573
3
votes
0
answers
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 ...
- 31
3
votes
1
answer
59
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. ...
- 11.1k
1
vote
1
answer
625
views
Cached Repository that can refresh all or a subset of the data
IReadOnlyCachedRepository<T>
...
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5
votes
2
answers
5k
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 ...
- 5,532
24
votes
0
answers
4k
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 ...
CommunityBot
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3
votes
0
answers
2k
views
1
vote
2
answers
168
views
Check repository for a nested entity
I have a Product entity and a ProductCategory entity. Given the Product entity, my ...
CommunityBot
- 1
1
vote
1
answer
1k
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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 ...
- 133
2
votes
0
answers
1k
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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 ...
- 43