How to update data

[roema]

Hello!

Thanks for you work, H2O Wave is really good. I have this code for testing

from h2o_wave import main, app, data, Q, ui
import time
from random import randrange

values_1 = []
values_2 = []

# make some data
for i in range(0,25):
    values_1.append(("CH1", i, randrange(100)))
    values_2.append(("CH2", i, randrange(100)))

@app('/demo')
async def serve(q: Q):

    q.page['meta'] = ui.meta_card(box='', layouts=[
        ui.layout(
            breakpoint='xl',
            width='1200px',
            zones=[
                ui.zone('header'),
                ui.zone('control'),
                ui.zone('top', direction=ui.ZoneDirection.ROW, size='385px', zones=[
                    ui.zone('top_left', direction=ui.ZoneDirection.ROW, size='66%'),
                    ui.zone('top_right'),
                ]),
                ui.zone('middle', direction=ui.ZoneDirection.ROW, size='400px'),
                ui.zone('bottom', direction=ui.ZoneDirection.ROW, size='200px'),
                ui.zone('footer'),
            ]
        )
    ])

    q.page['stats'] = ui.form_card(
        box='middle',
        title="Channel Power",
        items=[
            ui.stats(items=[
                ui.stat(label=("Man"), value=("Manuel")),
                ui.stat(label=("1234"), value=("1234")),
            ], justify=ui.StatsJustify.BETWEEN, inset=True),
            ui.visualization(
                plot=ui.plot([
                    ui.mark(type='line', x_scale='linear', x='=date', y='=visitors', color='=site',
                            color_range='$orange $amber', curve=ui.MarkCurve.SMOOTH),
                    ui.mark(type='line', x_scale='linear', x='=date', y='=visitors', color='=site',
                            color_range='$orange $amber', curve=ui.MarkCurve.SMOOTH),
                ]),
                data=data(
                    fields=['site', 'date', 'visitors'],
                    rows= values_1+ values_2,
                    pack=True
                ),
                height='240px',
            )
        ],
    )
    await q.page.save()

Now, i would update the stats.data, but it doesnt work and i cant find an example.

from h2o_wave import site, data
import time
from random import randrange

page = site['/demo']
quote = page['stats']

values_1 = []
values_2 = []

i = 0

while True:

    if len(values_1) == 26:
        values_1.pop(0)
        values_2.pop(0)

    values_1.append(("CH1", i, randrange(100)))
    values_2.append(("CH2", i, randrange(100)))

    time.sleep(0.25)
    quote.data = values_1 + values_2
    page.save()
    i = i + 1

Thanks for your help.

[mturoci]

Hi @roema, I did notice this question after a year, unfortunately. A better place to ask is wave repo discussions in case you still need help.