从 Shiny App 使用 template.docx 编织 word 文档 [英] Knit word document from Shiny App with template.docx

问题描述

我正在尝试使用 template.docx 文件从闪亮的应用程序编织一个 Word 文档.我收到以下错误消息:

I'm trying to knit a word document from a shiny app using a template.docx file. I get the following error message:

pandoc.exe: template.docx: openBinaryFile: 不存在(没有那个文件或目录)

pandoc.exe: template.docx: openBinaryFile: does not exist (No such file or directory)

以下 3 个文件当前都位于同一目录中.

The following 3 files were all currently located in the same directory.

app.R:

library(shiny)
library(rmarkdown)

ui <- fluidPage(

    titlePanel("Word template"),

    sidebarLayout(
        sidebarPanel(),

        mainPanel(
            downloadButton("download", "Download Report")
        )
    )
)

server <- function(input, output) {

    output$download <- downloadHandler(
        
        filename = function() {
            "report.docx"
        },
        content = function(file) {
            
            src <- normalizePath('report.Rmd')
            
            owd <- setwd(tempdir())
            on.exit(setwd(owd))
            file.copy(src, 'report.Rmd', overwrite = TRUE)
            
            out <- render('report.Rmd',
                          envir = new.env(parent = globalenv()))
            
            file.rename(out, file)
        }
        
    )
    
}

shinyApp(ui = ui, server = server)

report.Rmd:

report.Rmd:

---
title: "Test"
output:
  word_document:
    reference_docx: template.docx
    
---

`r getwd()`

```{r}
mtcars

```

template.docx 是一个空的新"文件Word 2016 文档

template.docx is an empty "new" Word 2016 document

推荐答案

在 downloadHandler() 函数中，您需要将 .Rmd 和 .docx 文件复制到临时目录

In the downloadHandler() function you need to copy both .Rmd and .docx files to the temporary directory

content = function(file) {
            
            src <- normalizePath(c('report.Rmd', 'template.docx')) # SEE HERE
            
            owd <- setwd(tempdir())
            on.exit(setwd(owd))
            file.copy(src, c('report.Rmd', 'template.docx'), overwrite = TRUE) # SEE HERE
            
            out <- render('report.Rmd',
                          envir = new.env(parent = globalenv()))
            
            file.rename(out, file)
        }

想法

如果不准备可重现的示例并考虑如何描述问题，我就不会解决这个问题.值得思考如何提问！

Thoughts

I wouldn't have worked this out without preparing a reproducible example and thinking about how to describe the problem. It's worth thinking about how to ask your question!

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