public static TEntity SingleOrDefault(TestGeorgeContext context, Expression <Func <TEntity, bool> > whereClause, params Expression <Func <TEntity, object> >[] includes)
{
var result = context.Set <TEntity>().AsQueryable();
result = includes.Aggregate(result, (current, include) => current.Include(include));
return(result.SingleOrDefault(whereClause));
}
public static void Add(TEntity entity)
{
using (var context = new TestGeorgeContext())
{
context.Set <TEntity>().Add(entity);
context.SaveChanges();
}
}
public static List <TEntity> Where(Expression <Func <TEntity, bool> > whereClause, params Expression <Func <TEntity, object> >[] includes)
{
using (var context = new TestGeorgeContext())
{
var result = context.Set <TEntity>().Where(whereClause);
result = includes.Aggregate(result, (current, include) => current.Include(include));
return(result.ToList());
}
}
public static List <TEntity> GetAll(params Expression <Func <TEntity, object> >[] includes)
{
using (var context = new TestGeorgeContext())
{
var result = context.Set <TEntity>().AsQueryable();
result = includes.Aggregate(result, (current, include) => current.Include(include));
return(result.ToList());
}
}
public static TEntity Update(TEntity toUpdate, Expression <Func <TEntity, bool> > whereClause)
{
using (var context = new TestGeorgeContext())
{
var result = context.Set <TEntity>().SingleOrDefault(whereClause);
context.Entry(result).CurrentValues.SetValues(toUpdate);
context.SaveChanges();
return(toUpdate);
}
}
public static void Delete(Expression <Func <TEntity, bool> > whereClause)
{
using (var context = new TestGeorgeContext())
{
var entity = SingleOrDefault(whereClause);
if (entity != null)
{
var result = context.Set <TEntity>().Remove(entity);
context.SaveChanges();
}
}
}
