我从SQL查询创建一个dataTable,我希望使用输入$ table_rows_selected函数(单击DT Table行视图)来更新图形
我的问题是输出$ plot< - renderPlotly函数(范围问题)
看不到创建的表如何在我的dataTable和我的图形之间进行此交互(包括彼此不同的SQL查询)?
感谢您的帮助
这是我的UI.R:
mainPanel(
DT::dataTableOutput("table"), #My Table
plotlyOutput("plot")) # My graph
))
refDataFrame <- reactive({
data_testeur <- odbcConnect(input$base, uid="uid")
SQL query searching all STEP_NAME items
odbcClose(data_testeur)
Ref_comp
})
这里是server.R:
output$Table <- DT::renderDataTable({
data_testeur <- odbcConnect(input$base, uid="uid")
SQL query to feed my dataTable with a column including all items
STEP_NAME
Close connexion data_testeur
cpk_total created from the SQL query
DT::datatable(cpk_total,...) # Formating table
)
output$plot <- renderPlotly({
data_testeur <- odbcConnect(input$base, uid="uid")
another SQL query to trace the graph for 1 STEP_NAME selected
#This SQL query use a variable from the created cpk_total table
Close connexion data_testeur
graph <- ....
)
答案 0 :(得分:0)
将data.table的代码放在像这样的反应中
cpk_total <- reactive({
data_testeur <- odbcConnect(input$base, uid="uid")
SQL query to feed my dataTable with a column including all items
STEP_NAME
Close connexion data_testeur
return result created from the SQL query
})
adnd然后在DT::renderDataTable
中调用它
output$Table <- DT::renderDataTable({
DT::datatable(cpk_total(),...) # Formating table
})
并且在renderPlotly
中您也可以访问它
output$plot <- renderPlotly({
dta <- cpk_total()
data_testeur <- odbcConnect(input$base, uid="uid")
another SQL query to trace the graph for 1 STEP_NAME selected
#This SQL query use a variable from the created cpk_total table
Close connexion data_testeur
graph <- ....
)
反应性的好处是 - 它仍然只计算一次: - )
希望这有帮助