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author杨宇千 <crupest@outlook.com>2020-02-01 00:26:35 +0800
committerGitHub <noreply@github.com>2020-02-01 00:26:35 +0800
commit7b962cd876719fb871569ba3c97fb5545721a3f8 (patch)
treef02f8d57440c777d4732bc4439f82e8b25c6732c /Timeline/Services/DatabaseExtensions.cs
parent289c7e1fada1f4dae6ce5e421e997ebddd55c2df (diff)
parentbcb0a2361467614531a337282da1fd23996924f1 (diff)
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Merge pull request #56 from crupest/dev
Refactor API to be RESTful.
Diffstat (limited to 'Timeline/Services/DatabaseExtensions.cs')
-rw-r--r--Timeline/Services/DatabaseExtensions.cs36
1 files changed, 0 insertions, 36 deletions
diff --git a/Timeline/Services/DatabaseExtensions.cs b/Timeline/Services/DatabaseExtensions.cs
deleted file mode 100644
index 140c3146..00000000
--- a/Timeline/Services/DatabaseExtensions.cs
+++ /dev/null
@@ -1,36 +0,0 @@
-using Microsoft.EntityFrameworkCore;
-using System;
-using System.Linq;
-using System.Threading.Tasks;
-using Timeline.Entities;
-using Timeline.Models.Validation;
-
-namespace Timeline.Services
-{
- internal static class DatabaseExtensions
- {
- private static readonly UsernameValidator usernameValidator = new UsernameValidator();
-
- /// <summary>
- /// Check the existence and get the id of the user.
- /// </summary>
- /// <param name="username">The username of the user.</param>
- /// <returns>The user id.</returns>
- /// <exception cref="ArgumentNullException">Thrown if <paramref name="username"/> is null.</exception>
- /// <exception cref="UsernameBadFormatException">Thrown if <paramref name="username"/> is of bad format.</exception>
- /// <exception cref="UserNotExistException">Thrown if user does not exist.</exception>
- internal static async Task<long> CheckAndGetUser(DbSet<User> userDbSet, string? username)
- {
- if (username == null)
- throw new ArgumentNullException(nameof(username));
- var (result, message) = usernameValidator.Validate(username);
- if (!result)
- throw new UsernameBadFormatException(username, message);
-
- var userId = await userDbSet.Where(u => u.Name == username).Select(u => u.Id).SingleOrDefaultAsync();
- if (userId == 0)
- throw new UserNotExistException(username);
- return userId;
- }
- }
-}