Refactors execute saving and retrievial of table data

PyWorkflowApp / visual-programming

A Python Visual Programming Workspace for Data Science

MIT License

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Closed diegostruk closed 4 years ago

diegostruk commented 4 years ago

Uses FileStorage API to save json intermediate node data.
Adds a field workspace name to Workflow object.
Static method for deriving the name of the file to be written/read.
Probably need to discuss how the workflow name will be populated in front-end and passed to back-end.