fix: add billing information in order view page

[uds5501]

Fixes #3295

Short description of what this resolves:

It implements usage of shows billing details for paid orders.

Changes proposed in this pull request:

• Refactor attendee-list component according to ES6 standards
• Use billing details part of templates for new orders.

Checklist

• I have read the Contribution & Best practices Guide.
• My branch is up-to-date with the Upstream development branch.
• The acceptance, integration, unit tests and linter pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

[uds5501]

@shreyanshdwivedi @mrsaicharan1 @niranjan94 @CosmicCoder96
I had a doubt. What to do in the cases of old orders where billing was not enabled but they were paid anyway. Should I add company part of the data in the computed property as a necessity to show this part of the template (and if this is missing, simply display "This is an old order with no billing information" ?)

[kushthedude]

use or

[uds5501]

did it.

[kushthedude]

No, Use like this

@or('data.amount','data,isBillingEnabled')
showBillingInfo;

[uds5501]

@kushthedude it doesn't work this way.

[niranjan94]

@kushthedude is right. Thats the right way to do it.
If it doesn't work, maybe you're doing something wrong. You can push the code.

[uds5501]

@niranjan94 Alright, taking a look.

[niranjan94]

@kushthedude is right. Thats the right way to do it.
If it doesn't work, maybe you're doing something wrong. You can push the code.

[uds5501]

@kushthedude @niranjan94 I have pushed the code with correct implementation. The thing which i was doing wrong at my part was using get with the or decorator.

[Anupam-dagar]

@uds5501 travis is failing

[uds5501]

@Anupam-dagar It's passing now.

@shreyanshdwivedi @mrsaicharan1 Please review

[mrsaicharan1]

@uds5501 Please update the branch