Adds Order#order_email to show the order's email

[softr8]

Summary

spree_orders table has the column email which stores the email of guest orders, this change intends to look first at this property then fallback to user's email.

This approach also makes it easier to stores to override what email to show.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (be710f3) 88.58% compared to head (deed35a) 88.58%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5596   +/-   ##
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  Coverage   88.58%   88.58%           
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  Files         685      685           
  Lines       16404    16406    +2     
=======================================
+ Hits        14531    14533    +2     
  Misses       1873     1873           

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[jarednorman]

I'm not necessarily opposed to this change, but can you provide some more context? In all the stores I work on, the order email gets set to the user email for non-guest orders, so I'm not sure how much value this provides.

[softr8]

I'm not necessarily opposed to this change, but can you provide some more context? In all the stores I work on, the order email gets set to the user email for non-guest orders, so I'm not sure how much value this provides.

I have some apps that behave like PoS, where a logged-in user can create orders for others, this is just the view layer, it does not change anything at all, The previous admin used to render order.email instead of order.user&.email || order.email

[jarednorman]

How does users creating orders for others factor in? Shouldn't that use the created_by field?