Do you know any library Adjacency List Model? like ....

[eluser]chiqui3d[/eluser]
hi!!!!!
Do you know any library Adjacency List Model? like https://github.com/olimortimer/ci-nested-sets but i,n “Adjacency List Model” that is the way I understand better.

Is to create unlimited categories for both products and services, that is actually providing the table as in the nested library.

Thank you!
And up codeigniter 3.0