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author | crupest <crupest@outlook.com> | 2020-01-30 20:26:52 +0800 |
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committer | crupest <crupest@outlook.com> | 2020-01-30 20:26:52 +0800 |
commit | 52acf41e331ddbd66befed4692c804b754ba7d5c (patch) | |
tree | 538ceea06640f501d2a950cac813c10561036e4d /Timeline/Services/DatabaseExtensions.cs | |
parent | abde51b167f17301c25e32ae247e7909c0dc9367 (diff) | |
download | timeline-52acf41e331ddbd66befed4692c804b754ba7d5c.tar.gz timeline-52acf41e331ddbd66befed4692c804b754ba7d5c.tar.bz2 timeline-52acf41e331ddbd66befed4692c804b754ba7d5c.zip |
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Diffstat (limited to 'Timeline/Services/DatabaseExtensions.cs')
-rw-r--r-- | Timeline/Services/DatabaseExtensions.cs | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/Timeline/Services/DatabaseExtensions.cs b/Timeline/Services/DatabaseExtensions.cs deleted file mode 100644 index e77dd01a..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<UserEntity> 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.Username == username).Select(u => u.Id).SingleOrDefaultAsync();
- if (userId == 0)
- throw new UserNotExistException(username);
- return userId;
- }
- }
-}
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