f_read_layout: Read Layout as '.json' from the '.pbix' Collection of Files

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

Description

The byte sequence of Layout within a '.pbix' is retrieved, cleaned by removing ASCII control characters and written to a temporary file . An attempt is made to read the temporary file as '.json'. If reading the temporary file as '.json' fails, a second attempt is made. For the second attempt, specific data within the '.json' file is included and a temporary file is written. The temporary file is read as '.json'.

Usage

f_read_layout(input_file_pbix, gsub1, gsub2)

Arguments

input_file_pbix	Path of the input '.pbix'.
gsub1	Text to select for replacement (i.e. text to exclude).
gsub2	Text to replace selected text (i.e. text to include).

Value

json: Layout

Author(s)

Don Diproto

See Also

Uses: f_read_any_json.

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 ------------------------------------------------------------------

gsub__1 <- paste0(".*sections")
gsub__2 <- "{\"id\":0,\"sections"
# Run the function
test <- f_read_layout(pathFileSample, gsub__1, gsub__2)
  
## End(Not run)

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