/// <summary>
/// create a new entity
/// </summary>
/// <param name="entity">entity to create</param>
/// <returns>number of affected rows</returns>
public int Create(LudothekEntities context, TEntity entity)
{
context.Set <TEntity>().Add(entity);
var numberOfAffectedRows = context.SaveChanges();
return(numberOfAffectedRows);
}
/// <summary>
/// delete article and his articlecultures by id
/// </summary>
/// <returns>number of affected entries.</returns>
public int Delete(LudothekEntities context, TEntity entity)
{
context.Set <TEntity>().Remove(entity);
return(context.SaveChanges());
}
/// <summary>
/// Get all entities
/// </summary>
/// <param name="expression">expression for find a specified entity. Default value null returns all entities</param>
/// <returns>a list of entities</returns>
public IQueryable <TEntity> Read(LudothekEntities context, Expression <Func <TEntity, bool> > expression = null)
{
var query = expression != null?context.Set <TEntity>().Where(expression) : context.Set <TEntity>();
return(query);
}