public void AddCategory(String categoryName, String categoryDescription, String parentCategory)
{
String slug = categoryName.Slugify();
if (!String.IsNullOrEmpty(parentCategory))
{
//Verify parent category exists.
if (!categories.Any(c => c.Name.Equals(parentCategory, StringComparison.OrdinalIgnoreCase)))
{
throw new ArgumentException("There is not category named " + parentCategory + " to be used as parent", "parentCategory");
}
}
//Verify no category with the same name in the system
if (categories.Any(c => c.Name.Equals(categoryName, StringComparison.OrdinalIgnoreCase)))
{
throw new ArgumentException("There is already a category named " + categoryName, "categoryName");
}
Category parent = null;
if (!String.IsNullOrEmpty(parentCategory))
{
parent = categories
.Where(c => c.Name.Equals(parentCategory, StringComparison.OrdinalIgnoreCase))
.Single();
}
String path = parent == null ? categoryName : parent.Path + "/" + categoryName;
String parentName = parent == null ? String.Empty : parent.Name;
CategoryAdded evt = new CategoryAdded(categoryName, parentName, slug, categoryDescription, path);
RaiseEvent(evt);
}
private void Apply(CategoryAdded evt)
{
Category newCategory = new Category()
{
Name = evt.Name,
Description = evt.Description,
Slug = evt.Slug,
Parent = categories.Single(c => c.Name.Equals(evt.Parent, StringComparison.OrdinalIgnoreCase)),
Path = evt.Path,
};
categories.Add(newCategory);
}
