Is it possible to check with EF Core if a string contains a string[]
For example, I have a database table that has comma separated keywords in one columns. I want to get related records that also contain these keywords. The way I tried it:
public class Item {
int Id { get; set; }
string Keywords { get; set; }
}
var keywords = item.Keywords.Split(',');
var result = context.Items.Where(i => keywords.Any(j => i.Keywords.Contains(j)).ToListAsync();
This will throw a error message:
The LINQ expression 'DbSet().Where(g => __keywords_0.Any(j => g.Keywords.Contains(j)))' could not be translated.
So how wil I rewrite this so that it can be translated to SQL? It is not an option to get a complete list and checking it with C#. It is also not possible to convert a comma seperated keyword list to it's own table.
You can just use something like this
public class Product
{
public Int32 ID { get; set; }
public List<StringList> Strings{ get; set; }
}
public class StringList
{
public Int32 Id { get; set; }
public String Name { get; set; }
}
List<StringList>
will replace List<String>
For Example DB.Products.Include(x => x.Strings).ToList().ForEach(y => Console.WriteLine(y.Name));
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