/// <summary>
/// Converts a usage of an ingredient within a recipe to an IngredientAggregation object, suitable for aggregating with other usages of the same ingredient.
/// </summary>
/// <param name="usage">An IngredientUsage object, usually from a recipe.</param>
/// <returns>An IngredientAggregation object, usually to be combined with other uses of that ingredient to form a shopping list.</returns>
public virtual IngredientAggregation ConvertIngredientUsage(IngredientUsage usage)
{
// TODO: Does this method need to be part of the context? Perhaps IngredientUsage should have a method to convert to an aggregation
var ingredient = this.ReadIngredient(usage.Ingredient.Id);
if (ingredient == null)
{
throw new IngredientNotFoundException();
}
var aggregation = new IngredientAggregation(ingredient);
aggregation.AddUsage(usage);
return aggregation;
}
/// <summary>
/// Converts a usage of an ingredient within a recipe to an IngredientAggregation object, suitable for aggregating with other usages of the same ingredient.
/// </summary>
/// <param name="usage">An IngredientUsage object, usually from a recipe.</param>
/// <returns>An IngredientAggregation object, usually to be combined with other uses of that ingredient to form a shopping list.</returns>
public IngredientAggregation ConvertIngredientUsage(IngredientUsage usage)
{
//TODO: Does this method need to be part of the context? Perhaps IngredientUsage should have a method to convert to an aggregation
var ing = ReadIngredient(usage.Ingredient.Id);
if (ing == null)
throw new IngredientNotFoundException();
var a = new IngredientAggregation(ing);
a.AddUsage(usage);
return a;
}