T2015 filled-misused

A column that work fills, as its by states it, cannot be filled so.

Details

The work that fills a column is handed what input of its by names, and nothing else, and runs as the app: what it was handed is all its value may rest on. The check reports:

• a by that names what is no action, python or model;
• an input that names no column of the row, or reads through a link into another file, which one write cannot reach;
• an answer, or the field that take names, that does not fit the column;
• a definition that fills a column and states no system, or states rows;
• a filled column that is required: until its work made its value, it stands empty;
• a ring of filled columns, each made from the next;
• a filter with filled on a column that states no by.

The fix

State optional: true on the column, name an action that states system with its reason, and name in input the columns of the row, or of a row it links to in the same file. Work that needs more than its row is a flow on table.changed that writes the column itself.

See also

topic.workers, command.filled