f_get_pbix_fir: Get the Byte Sequence of a File from the Collection of Files...

In pbixr: Access Data and Metadata from 'Microsoft' 'Power BI' Documents

Description

'.pbix' is decompressed in memory, making its collection of files available for manipulation. The byte sequence of a specific file in the collection is retained. Files in the collection can be identified with f_get_pbix_info.

Usage

f_get_pbix_fir(input_file_pbix, variable)

Arguments

input_file_pbix	Path of the input '.pbix'.
variable	Name of file in the collection of files.

Value

Byte sequence of a file.

Note

f_get_pbix_fir included modification of a function ('zip_buffer') from the 'readxl' package (licence GPL-3). The function could not be imported from readxl at the time of 'pbixr' publication. 'zip_buffer' was available from: https://github.com/tidyverse/readxl/blob/master/R/xlsx-zip.R.

Author(s)

Don Diproto

Examples

## Not run: 
# Get dummy data ------------------------------------------------------------
# Create a temporary directory
temp_dir <- file.path(tempdir(),"functionTest")
if(!dir.exists(temp_dir)) {
	dir.create(temp_dir)
}
sample_file_name <- "OR_sample_func.pbix"
pathFileSample <- file.path(temp_dir, sample_file_name)

# See if dummy data already exists in temporary directory
parent_temp_dir <- dirname(temp_dir)
existing_file <- list.files(parent_temp_dir,
pattern = sample_file_name, recursive = TRUE, full.names = TRUE)

# Download the sample .pbix if it doesn't exist
if (length(existing_file) == 0) {
   url_pt1 <- "https://github.com/KoenVerbeeck/PowerBI-Course/blob/"
   url_pt2 <- "master/pbix/TopMovies.pbix?raw=true"
   url <- paste0(url_pt1, url_pt2)
   req <- download.file(url, destfile = pathFileSample, mode = "wb")
} else {
   pathFileSample <- existing_file[1]
}
# Do stuff ------------------------------------------------------------------

variable <-  paste0("Report/CustomVisuals/ImgViewerVisual1455487926945/",
"resources/ImgViewerVisual.css")
# Run the function
test <- f_get_pbix_fir(pathFileSample, variable)
  
## End(Not run)

pbixr documentation built on Oct. 27, 2020, 5:07 p.m.