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cache for pictures

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This commit is contained in:
Hamid Reza Mohammadi 2021-05-16 10:55:17 +04:30
parent 20df0c595b
commit ae33799da0
1 changed files with 19 additions and 4 deletions
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23
RMuseum/Services/Implementation/PictureFileService.cs
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@ -1,5 +1,6 @@
using Microsoft.AspNetCore.Http;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.Configuration;
using RMuseum.DbContext;
using RMuseum.Models.Artifact;
@ -166,10 +167,17 @@ namespace RMuseum.Services.Implementation
{
try
{
return new RServiceResult<RPictureFile>(
await _context.PictureFiles
var cachKey = $"PictureFileService::GetImage::{id}";
if(!_memoryCache.TryGetValue(cachKey, out RPictureFile pictureFile))
{
pictureFile = await _context.PictureFiles.AsNoTracking()
.Where(p => p.Id == id)
.SingleOrDefaultAsync()
.SingleOrDefaultAsync();
_memoryCache.Set(cachKey, pictureFile);
}
return new RServiceResult<RPictureFile>(
pictureFile
);
}
catch (Exception exp)
@ -571,6 +579,11 @@ namespace RMuseum.Services.Implementation
/// </summary>
protected readonly IImageFileService _simpleImageStorage;
/// <summary>
/// memory cache
/// </summary>
private readonly IMemoryCache _memoryCache;
/// <summary>
/// constructor
@ -578,11 +591,13 @@ namespace RMuseum.Services.Implementation
/// <param name="context"></param>
/// <param name="configuration"></param>
/// <param name="simpleImageStorage"></param>
public PictureFileService(RMuseumDbContext context, IConfiguration configuration, IImageFileService simpleImageStorage)
/// <param name="memoryCache"></param>
public PictureFileService(RMuseumDbContext context, IConfiguration configuration, IImageFileService simpleImageStorage, IMemoryCache memoryCache)
{
_context = context;
Configuration = configuration;
_simpleImageStorage = simpleImageStorage;
_memoryCache = memoryCache;
}
}
}