PhoenixKitEcommerce. Shopify. ProductDiff. Change
(PhoenixKitEcommerce v0.4.2)
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One local product's field-by-field diff against its matched Shopify
product. changes only contains fields that actually differ, keyed by
field atom, each holding %{current:, incoming:}. price_extreme? is
true only when :price is in changes and the current/incoming ratio
exceeds 3x.
base_locale is the locale diff/4 matched/compared this product
against — carried on the struct (not re-derived later) so
Shopify.Sync.apply_change/2 writes localized fields back into the
SAME locale they were diffed against. Reading a fresh default at
apply time would silently apply a change diffed in one locale into
another.