闪亮：用户选择“全部”值时，BigQuery失败

ericbrownaustin 发表于 Dev

ericbrownaustin

我正在尝试使用BigQuery查询来填充Shiny中的图。该查询包括使用selectInput来自ui的输入值。如果用户选择数据库中存在的值，例如year是2014，则查询可以正常工作，但是，我希望用户也能够选择“全部”。“全部”应该是所有值的选择，但是，我不确定如何在使用selectInput的查询中表示该值。

服务器

data1 <- eventReactive(input$do_sql, {
bqr_auth(token = NULL, new_user = FALSE, verbose = FALSE)

query = paste('select month, event, partner_name, sum(f0_) from [dataset.table] where year =',input$year1,' and partner_name = \"',input$partner_name,'\"
              GROUP by 1,2,3
              ORDER by 1 asc
              LIMIT 10000', sep="")

bqr_query(projectId, datasetId, query, maxResults =2000)
})

用户界面

 ( 
  selectInput("year1", 
              "Year:", 
              c("All",2014,2015
                ))
),

 (
  selectInput("partner_name", 
              "Partner:", 
              c("All", 
                unique(as.character(data5$partner_name))))

米哈伊尔·伯利安（Mikhail Berlyant）

您应该稍微更改正在构造的查询，
因此，当前

SELECT month, event, partner_name, SUM(f0_) 
FROM [dataset.table] 
WHERE year = selected_year
AND partner_name = "selected_partner_name"
GROUP BY 1,2,3
ORDER BY 1 ASC
LIMIT 10000

与分别：

selected_year --> input$year1
selected_partner_name --> input$partner_name

相反，您应该构造以下查询

SELECT month, event, partner_name, SUM(f0_) 
FROM [dataset.table] 
WHERE (year = selected_year OR "selected_year" = "All") 
AND (partner_name = "selected_partner_name" OR "selected_partner_name" = "All")
GROUP BY 1,2,3
ORDER BY 1 ASC
LIMIT 10000

我根本不是个闪亮的用户-请原谅我的语法-以下只是我对实现上述建议的猜测

query = paste('SELECT month, event, partner_name, sum(f0_) 
    FROM [dataset.table] 
    WHERE (year =',input$year1,' OR "All" ="',input$year1,'") 
    AND (partner_name = \"',input$partner_name,'\" OR "All" = \"',input$partner_name,'\")
          GROUP by 1,2,3
          ORDER by 1 asc
          LIMIT 10000', sep="")

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