Initializing help system before first use

# insightgetappattach

Purpose
Retrieves an app attachment from the Insight server, placing it in the Mosel working directory where it can be read by the model.
Synopsis
`procedure insightgetappattach(attachname:text)`
`procedure insightgetappattach(attachname:text, filename:text)`
Arguments

attachname | The name of the attachment to be retrieved.
filename | The local file to which to write the attachment data. If not specified, attachment name will be used.

Example

    insightgetappattach('myattach.dat')
    if insightattachstatus=INSIGHT_ATTACH_OK then
      writeln('Initialize data structures from myattach.dat')
      ! Add data initialization code here
    else
      writeln("Error retrieving attachment")
    end-if

Example of copying an app attachment called myattach.dat to the working directory.

    public declarations
      attachmentcontent: text
    end-declarations
    insightgetappattach('myattach.dat', 'text:attachmentcontent')
    if insightattachstatus=INSIGHT_ATTACH_OK then
      writeln('Initialize data structures from myattach.dat')
      ! Add data initialization code here
    else
      writeln("Error retrieving attachment")
    end-if

Example of copying an app attachment called myattach.dat directly into a Mosel varaible
Further information
1. Check the attachment status code using insightattachstatus to determine whether the attachment was successfully fetched.
2. If the file already exists, it will be overwritten.
3. filename can be a file in the work directory, or include a directory path, or an extended Mosel filename such as 'text:varname' or 'zlib.gzip:filename.txt'.
4. If filename includes a directory path, the directory being written into must already exist.
5. Attempting to access attachments when the model is not being run through Xpress Insight will cause the model to abort with an error, except when test mode has been activated by setting insight_testmode.
Related topics
insightattachstatus
Parent Topic Attachments

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