public IActionResult likePicute(string userId, string picId, string type)
{
//首先查找是否有现有的点赞
var like = services.getLikes(userId, picId);
var pic = services.getPicture(picId);
if (like != null)//现在已经有 赞
{
//点击类型相同，取消赞
context.likesPicture.Remove(like);
pic.likes--;//原有的赞减少
context.picture.Attach(pic);
context.SaveChanges();
}
else
{//创建新的赞
like = new likespicture
{
u_id = userId,
p_id = picId,
like_time = DateTime.Now,
like_type = type
};
context.likesPicture.Add(like);
pic.likes++;//原有的赞增加
context.Attach(pic);
context.SaveChanges();
}
return(Ok(new
{
Success = true,
msg = "Operation Done"
}));
}
public async Task <IActionResult> SimilarPicture([FromForm] IFormCollection forms)
{
var files = Request.Form.Files;
long size = files.Sum(f => f.Length);
//size > 100MB refuse upload !
if (size > 104857600)
{
return(Ok(new
{
Success = false,
Message = "pictures total size > 100MB , server refused !"
}));
}
var file = files[0];
var fileName = ContentDispositionHeaderValue.Parse(file.ContentDisposition).FileName.Trim('"');
string filePath = "C:" + @"\Pics\";
if (!Directory.Exists(filePath))
{
Directory.CreateDirectory(filePath);
}
string suffix = fileName.Split('.')[1];
//检查文件后缀名确保是图片而不是其他文件。
if (!pictureFormatArray.Contains(suffix))
{
return(Ok(new
{
Success = false,
Message = "the picture format not support ! you must upload files " +
"that suffix like 'png','jpg','jpeg','bmp','gif','ico'.",
Name = fileName
}));
}
fileName = Guid.NewGuid() + "." + suffix;
string fileFullName = filePath + fileName;
int height = 0;
int width = 0;
await using (FileStream fs = System.IO.File.Create(fileFullName))
{
file.CopyTo(fs);
System.Drawing.Image image = System.Drawing.Image.FromStream(fs);
height = image.Height;
width = image.Width;
fs.Flush();
}
string message = $"{files.Count} file(s) /{size} bytes uploaded successfully!";
//刷新为服务器的图片。
fileFullName = "C:/Pics/" + fileName;
//string[] ReturnTag = PictureServices.getTag("D:/Entertainment/Entertainment/MechineLearning/Data/test/5.jpg");
string[] ReturnTag = PictureServices.getTag(fileFullName);
var returnList = new List <picInfo> {
};
//循环3个tag
for (int i = 0; i < 3; ++i)
{
var picList = context.ownTag.ToLookup(t => t.tag_name)[ReturnTag[i]].ToList();
//循环每个tag里面的图片
foreach (var pic in picList)
{
var nowPic = PictureServices.getPicture(pic.p_id);
var pubulisher = services.GetUserById(context.publishPicture
.FirstOrDefault(p => p.p_id == nowPic.p_id).u_id);
var newPicInfo = new picInfo
{
picId = nowPic.p_id,
picUrl = nowPic.p_url,
publisherId = pubulisher.u_id,
publisherName = pubulisher.u_name,
info = nowPic.p_info,
starNum = context.favoritePicture.Count(f => f.p_id == nowPic.p_id),
likeNum = context.likesPicture.Count(l => l.p_id == nowPic.p_id),
commNum = context.picComment.Count(c => c.p_id == nowPic.p_id)
};
returnList.Add(newPicInfo);
}
}
return(Ok(new
{
Success = true,
picList = returnList,
msg = "Operation Done"
}));
}