ColumnDataSource callback on_change issue in 0.13

I have connected a widgets.DataTable with a figure by using the on_change method on the ColumnDataSource.

source = ColumnDataSource(sub)
source.on_change('selected', table_select_callback)

This has stopped working in the latest release (0.13). Selecting rows in the table does not seem to trigger an event anymore.

[bjonen]

Many thanks. With the above adjustment, the example is fixed. Thanks for the quick response!

from datetime import date
from random import randint
from bokeh.models import ColumnDataSource
from bokeh.models.widgets import DataTable, DateFormatter, TableColumn

import bokeh.layouts as layouts
import bokeh.models.widgets as widgets
from bokeh.io import curdoc

# from bokeh.models.glyphs import Line
# from bkcharts import Line
import numpy as np
from bokeh.plotting import figure

data = dict(
    dates=[date(2014, 3, i + 1) for i in range(10)],
    downloads=[randint(0, 100) for i in range(10)],
)
d_source = ColumnDataSource(data)

columns = [
    TableColumn(field="dates", title="Date", formatter=DateFormatter()),
    TableColumn(field="downloads", title="Downloads"),
]

data_table = DataTable(source=d_source, columns=columns, width=400, height=280)
#data_table.row_headers = False


def table_select_callback(attr, old, new):
    # print 'here'
    # print new
    # selected_row = new['1d']['indices'][0]
    selected_row = new[0]
    download_count = data['downloads'][selected_row]
    chart_data = np.random.uniform(0, 100, size=download_count)
    p = figure(title='bla')
    r = p.line(x=range(len(chart_data)), y=chart_data)
    root_layout.children[1] = p

# d_source.on_change('selected', table_select_callback)
d_source.selected.on_change('indices', table_select_callback)

root_layout = layouts.Column(data_table, widgets.Div(text='Select Date'))
curdoc().add_root(root_layout)

[bryevdv]

In any case, arguably, since the work to make Selection a proper Bokeh models earlier this year, the proper/better way to do this is

source.selected.on_change('indices', table_select_callback)