def get_plot_image(name, components):
# plot the latest forecast
with mara_db.postgresql.postgres_cursor_context('mara') as cursor:
cursor.execute(
f'''
SELECT metric_name, forecasts_df, source_df, components_figure
FROM forecasts WHERE metric_name = {'%s'}
ORDER BY forecast_ts DESC
LIMIT 1''', (name, ))
result = cursor.fetchone()
png_bytes = None
if result:
forecast_df = pickle.loads(result[1])
source_df = pickle.loads(result[2])
components_figure = pickle.loads(result[3])
png_bytes = components_figure
if components != 'True':
# get main forecast plot figure
figure = get_main_plot_figure(name, source_df, forecast_df)
output = io.BytesIO()
FigureCanvas(figure).print_png(output)
png_bytes = str(
base64.b64encode(output.getvalue()).decode("utf-8"))
return str(_.img(src="data:image/png;base64," +
png_bytes)) if result else 'No data yet.'
def page_header(response: mara_page.response.Response):
"""Renders the fixed top part of the page"""
return _.nav(id='mara-page-header', _class='navbar fixed-top')[
_.a(_class='navigation-toggle-button fa fa-lg fa-reorder',
onclick='toggleNavigation()')[' '],
_.h1()[response.title],
_.img(src=config.logo_url()),
_.span(_class='action-buttons')[map(action_button, response.
action_buttons)]]
def page_header(response: mara_page.response.Response):
"""Renders the fixed top part of the page"""
return _.nav(id='mara-page-header', class_='navbar fixed-top')[
_.a(class_='navigation-toggle-button fa fa-lg fa-reorder',
onclick='toggleNavigation()')[' '],
_.img(src=config.logo_url() + '?' + _current_git_commit()),
_.h1[response.title],
_.div(class_='action-buttons')[map(action_button, response.
action_buttons)], ]
def error_handler(error):
if not isinstance(error, exceptions.HTTPException):
error = exceptions.InternalServerError()
return response.Response(bootstrap.card(body=_.span[
_.p(style='color:#888')[error.description or ''],
_.img(src=flask.url_for('mara_app.static', filename='mara.jpg'
),
style='margin-top:30px;max-width:100%;')]),
title=f'{error.code} {error.name}',
status=error.code)