[英]How to have Dash Plotly page update automatically with gspread data from spreadsheet?
我正在使用 gspread 庫從 Google 電子表格中提取數據,並且我希望我的 Dash Plotly 頁面更新該數據。 我有一個輸入,我想控制被提取的數據類型。 有沒有辦法讓頁面基本上“刷新”而不實際刷新,每次輸入更改時都會使用新數據?
html.Div(className='title', children=[
html.H1(className='headers', children=[
AnalysisDashboard.acell('A6').value
]),
html.H2(className='headers', children=[
'Player Report'
]),
dcc.Input(id='idInput', type='number', placeholder='Enter ID'),
html.H1(id='my-output', children=[
'PlaceHolder'
])
])
AnalysisDashboard.acell('A6').value
來自外部電子表格,我希望每當我在輸入框中輸入內容時,它都會在 Dash Plotly 頁面上更新。
這就是回調的用途。
現在我不知道您希望根據輸入值以何種方式更改值,但根據您的示例,它可能如下所示:
from dash import Dash
import dash_html_components as html
import dash_core_components as dcc
from dash.dependencies import Output, Input
app = Dash(__name__)
app.layout = html.Div(
className="title",
children=[
html.H1(id="output", className="headers", children=["Some initial value"]),
html.H2(className="headers", children=["Player Report"]),
dcc.Input(id="idInput", type="number", placeholder="Enter ID"),
html.H1(id="my-output", children=["PlaceHolder"]),
],
)
@app.callback(
Output("output", "children"),
Input("idInput", "value"),
)
def update_output_div(input_value):
# Replace input_value with whatever you want to return
# like (AnalysisDashboard.acell('A6').value) or something similar
return input_value
if __name__ == "__main__":
app.run_server()
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