Handles all interactions with the comics-db 'grading' table.
Read operations:
Protected
Static
The primary key of the table as defined in the database.
The name of the table as defined in the database.
Reads a single Grading by certificate ID.
The ID of the grading certificate.
Grading or undefined if certId does not exist.
Reads a single Grading by comic ID.
The ID of the comic.
Grading or null if comicId does not exist.
Reads all Gradings.
Grading[]
Handles all interactions with the comics-db 'grading' table.
Read operations: