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enso-org / dataframes

A library for working with tabular data in Luna.
https://luna-lang.org
MIT License
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Add missing `toJSON` methods #151

Open sylwiabr opened 5 years ago

sylwiabr commented 5 years ago

Summary

toJSON method is called whenever Luna Studio is trying to show visualization for a node. Missing toJSON methods causing errors on a graph.

Zrzut ekranu 2019-05-14 o 09 32 58

The reproduction steps for above:

  1. read the file i.e. the one from Technical Analysis (welcome screen example)
  2. get single column from the data frame (column "Date")
  3. take field from the column header
  4. get type from the Field

    Value

    Better visualizations on a graph.

    Specification

    The toJSON methods should be added to all Classes in Dataframes like:

    • Field
    • TypedColumn
    • DataType
    • Schema
    • StringType, Int32Type etc.

      Acceptance Criteria & Test Cases