Complex SQL to LINQ conversion with subquery - sql

Question

I am trying to convert this expression into LINQ from SQL, but a bit too difficult for me, maybe you can help me with this!
SELECT TOP (2) RecipeID, UserID, Name, Servings, PreparationTime, TotalTime, DifficultyLevelID, CuisineID, DishID, MainIngredientID, PriceLevelID, FlavourID, Instructions,
Notes, Thumbnail, VideoLink
FROM dbo.Recipes
WHERE (RecipeID NOT IN
(SELECT DISTINCT Recipes_1.RecipeID
FROM dbo.Allergies INNER JOIN
dbo.UsersAllergies ON dbo.Allergies.AllergyID = dbo.UsersAllergies.AllergyID INNER JOIN
dbo.IngredientsAllergies ON dbo.Allergies.AllergyID = dbo.IngredientsAllergies.AllergyID INNER JOIN
dbo.Ingredients ON dbo.IngredientsAllergies.IngredientID = dbo.Ingredients.IngredientID INNER JOIN
dbo.RecipesIngredients ON dbo.Ingredients.IngredientID = dbo.RecipesIngredients.IngredientID INNER JOIN
dbo.Recipes AS Recipes_1 ON dbo.RecipesIngredients.RecipeID = Recipes_1.RecipeID INNER JOIN
dbo.Users ON dbo.UsersAllergies.UserID = dbo.Users.UserID INNER JOIN
dbo.AllergyFactors ON dbo.IngredientsAllergies.AllergyFactorID = dbo.AllergyFactors.AllergyFactorID
WHERE (dbo.Users.UserID = 3) AND (dbo.AllergyFactors.AllergyFactorID < 3)))

Answer 1

It would be easier to help you if you showed us what you have already tried, but a Linq expression like this should give you the same result set
var query = (from rec in context.Recipes
where !(from al in context.Allergies
from ua in context.UsersAllergies.Where(x => al.AllergyID == x.AllergyID)
from ia in context.IngredientsAllergies.Where(x => al.AllergyID == x.AllergyID)
from in in context.Ingredients.Where(x => ia.IngredientID == x.IngredientID)
from ri in context.RecipesIngredients.Where(x => in.IngredientID == x.IngredientID)
from re in context.Recipes.Where(x => ri.RecipeID == x.RecipeID)
from us in context.Users.Where(x => ua.UserID == x.UserID)
from af in context.AllergyFactors.Where(x => ia.AllergyFactorID == x.AllergyFactorID)
where us.UserID == 3 && af.AllergyFactorID < 3
select re.RecipeID)
.Distinct()
.Contains(rec.RecipeID)
select new
{
rec.RecipeID,
rec.UserID,
rec.Name,
rec.Servings,
rec.PreparationTime,
rec.TotalTime,
rec.DifficultyLevelID,
rec.CuisineID,
rec.DishID,
rec.MainIngredientID,
rec.PriceLevelID,
rec.FlavourID,
rec.Instructions,
rec.Notes,
rec.Thumbnail,
rec.VideoLink
}).Take(2);