My file contains:
So these are my users and I want to create a list of all users. I’ve tried do
user_data(Id,Email,Password,Role), but it returns the first record only.
Quick guess here; did not try any of this.
Once a persistency file is loaded, the data (facts in this case) should be accessible as expected and I take it that is what you are doing based on the question.
This should work.
Now all of the facts are in the variable
Users as a list.
See: Finding all Solutions to a Goal
I have created a few topics on this site that talk about and demonstrate using library(persistency), the most complete and accurate example code can be found in this post.
I think I forgot to say that I want to make a list of users on my website, and I don’t get the idea how I can do this via bagof.
Do you mean like this: Html_write, DCG generators and backtracking - #2 by Boris
Or something completely different?
Yes, exactly! I didn’t expect to see foreach in Prolog Thank you
There are two distinct "foreach"es in SWI-Prolog