/// <summary>
/// The Delete.
/// </summary>
/// <param name="paperHashes">The paperHashes<see cref="Models.PaperHashes"/>.</param>
/// <returns>The <see cref="Task"/>.</returns>
public async Task Delete(Models.PaperHashes paperHashes)
{
var check = await Read(paperHashes);
if (check != null)
{
_db.PaperHashes.Remove(check);
await _db.SaveChangesAsync();
}
}
/// <summary>
/// The Update.
/// </summary>
/// <param name="paperHashes">The paperHashes<see cref="Models.PaperHashes"/>.</param>
/// <returns>The <see cref="Task{Models.PaperHashes}"/>.</returns>
public async Task <Models.PaperHashes> Update(Models.PaperHashes paperHashes)
{
var check = await Read(paperHashes);
if (check != null)
{
_db.PaperHashes.Update(paperHashes);
await _db.SaveChangesAsync();
return(paperHashes);
}
return(paperHashes);
}
/// <summary>
/// The Create.
/// </summary>
/// <param name="paperHashes">The paperHashes<see cref="Models.PaperHashes"/>.</param>
/// <returns>The <see cref="Task{Models.PaperHashes}"/>.</returns>
public async Task <Models.PaperHashes> Create(Models.PaperHashes paperHashes)
{
var check = await Read(paperHashes);
if (check == null)
{
await _db.PaperHashes.AddAsync(paperHashes);
await _db.SaveChangesAsync();
return(paperHashes);
}
return(paperHashes);
}
/// <summary>
/// The Read.
/// </summary>
/// <param name="paperHashes">The paperHashes<see cref="Models.PaperHashes"/>.</param>
/// <returns>The <see cref="Task{Models.PaperHashes}"/>.</returns>
public async Task <Models.PaperHashes> Read(Models.PaperHashes paperHashes)
{
return(await _db.PaperHashes.FirstOrDefaultAsync(x => x.PaperId == paperHashes.PaperId && x.HashTagId == paperHashes.HashTagId));
}