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fixed-data-table-addons

Addons for the fixed-data-table-2

This package supplements Schrödinger's fixed-data-table-2 with higher order components that add on context data, filtering and sorting. The package is the results from an issue that added an example showing how to add pagination, context and filtering to the fixed-data-table-2.

Note: This package is in maintanance mode and looking for a new owner. I'm currently not using fdt2 and therefore not the best suited for actually maintaining the package.

Package content

The package exports three objects, a HOC with the higher order components, a Data that contains data specifics and PropTypes.

The higher-order-components (HOC)

This object is for directly adding functionality to the tables. This can be either for a Table or a Cell component. The available methods are:

• addDataCtxt that adds data context to a table and thus allows more convenient access to the data structure that doesn't have to be passed down to each cell. Important: The data provided has to have certain functions such as getSize and for this to work, see description of the data structure below.
• addData2CellFromCtxt that adds moves the data context into a regular property.
• addFilter this allows adding a filtering property to the component that searches the data for matching elements. The standard matching is done using string comparisons but the function takes a second filter argument that allows specifying any function that returns a boolean.
• addForm2Cell this adds an input form to a cell that is convenient when you want to add to your header the filter input field.
• addSort this adds sorting to the table. It is recommended that you do the actual sort in the back-end. If you have a short table and you want to force sorting all the elements directly then set the second argument to false.
• addSort2Cell this adds a sorting link component to a header cell.

Data context - example

To use the data context extend your table with the context HOC as below:

import { Table, Column, Cell } from 'fixed-data-table-2';
import { HOC } from 'fixed-data-table-addons';
 
const CoreCell = ({
  rowIndex, columnKey, data, ...other
}) => (
  <Cell {...other}>
    {data.getObjectAt(rowIndex)[columnKey]}
  </Cell>
);
const ContextCell = addData2CellFromCtxt(CoreCell);
const DataTable = addDataCtxt(Table);
 
....
  render() {
    return (
      <DataTable
        rowHeight={50}
        headerHeight={50}
        height={500}
        width={500}
        data={data}
      >
        <Column
          columnKey="id"
          width={250}
          header={<Cell>ID</Cell>}
          cell={ContextCell}
        />
        <Column
          columnKey="name"
          width={250}
          header={<Cell>Name</Cell>}
          cell={ContextCell}
        />
      </DataTable>
    );
  }

The Data object

The data object contains:

• DataListWrapper a class that wraps around a data object with custom getObjectAt, isTouched, and getSize. It is a thin datalayer that has its own index that is set at creation. It can also set the parent data callback that can be useful when setting up pagination.
• SortTypes contains the sort constants for ASC (ascending) and DESC (descending) sorting.
• getRowValue this is simply a function that accesses the underlying row. Since immutable is a common data structure there is a need for allowing a custom get() method in the data object. This function checks if that is available and uses that function before trying standard [].

The data structure provided to this package should be wrapped in a class that provides the following interface:

• getSize() returns the number of rows.
• getObjectAt(index) returns a row object at a certain index. The row object should either have a get(columnName) function used for accessing the column or be just indexeable using the standard [columnName] syntax.
• setCallback(callbackFunction) is optional and is used together with paginated data. If you have data that will load later and want to trigger events when this happens then add those events using this function.
• runCallbacks() also optional and simply runs each of the callbacks received.

The PropTypes object

The PropTypes provide property types as defined by react. It contains:

• createWithProps is a function that creates a proptype that has to contain certain properties. Useful for checking if the data object is correctly specified with the getObjectAt and getSize functions.
• BasicData is a property type generate using createWithProps(['getSize', 'getObjectAt', 'isTouched']).
• DataListWrapper is a proprty type specific to the DataListWrapper class.
• Filter is a property type for filters. Checks that the filter property is an object of length > 0.