Node and Edge States, Comments and Literature Refs Should be Imported in New Columns

[AlexanderPico]

Can we grab the comments and literature references associated with individual nodes and edges and write those to new columns in CyTables?

Use case 1: Phosphorylation states

• These states are associated with parent nodes. The comments for these states should be captures in the Node Table as a new attribute for the parent node.
• Example: WP3972

Use case 2: Literature refs

• Nodes and Edges can have literature references associated with them. Capturing just the PMID is sufficient. These should be written to a CyTable as a new column.
• Example: WP554

Use case 3: Comments

• Nodes and Edges can have comments. Write these out to a new column as well.
• Example: WP3008

[ariutta]

Literature refs for specific DataNodes and for the entire pathway are being captured and saved at the pathway level. For example, WP554 has pmid:17464936 for the entire pathway and pmid:15134803 specifically for DataNodes "b75c3" (Aldosterone), "e14ac" (CYP11B2) and "ec3b5" (NR3C2). When imported as pathway, 17464936 and 15134803 are in the Network Table, but 15134803 does not show up for any of the specific nodes.

@AlexanderPico, should 15134803 show up at all in the Network Table in this case? Or should it only be for the specific nodes?

[AlexanderPico]

The feature was fine as-is, but it looks like we lost it in 3.3.8. Need to dig it up from other branch...