Provide preview of reduction script

[MarcusNoble]

Need some way of providing a preview of the reduction script as it will be used.

This could either be shown as text or as a download.

The variables in the script file should be replaced with the variables that are chosen.

Add a new url '/script' that can either take a reduction runs number and version as a get request or take form inputs as a post for when previewing the script when editing variables.

For Tester:

Note: Permissions may need to be altered for this to work as expected.

1. Navigate to ​http://datareducedev.isis.cclrc.ac.uk/autoreduce_webapp/instrument/GEM/ (logging in if needed).
2. Click the 'preview reduction script' link
3. A python file should download with variables matching those shown on the page

[Anders Markvardsen]

screenshot

[Anders Markvardsen]

Works as described - hence pass.

Note one output I get is:

import sys


standard_vars = {
    'a' : 1,
    'Testing' : 'test',
    'Incident energies' : [1, 2, 3],
    'Whitebeam number' : 2,
}

advanced_vars = {
	'Testing some advanced stuff' : 'one',
	'b' : 'two',
	'listy' : [1, 2, 3],
	'bool' : True,
	'floaty' : 1.2,
}

From the attached screenshot consider have the advanced parameters the same way as you have in 'edit variables'.

Note on Internet Explorer the Runs 7777->7777 does not appear in the right place.

[MarcusNoble]

Fixed issue with Internet Explorer