add track-record value translation tag (#5305)

* add track-record value translation tag

* add context to the track record tag labels

* Update bg_selector_tags.py

network-api/networkapi/buyersguide/templates/fragments/it_uses.html

@@ -1,4 +1,4 @@
-{% load yes_no i18n %}
+{% load bg_selector_tags i18n %}
 
 <div class="it-uses d-flex flex-column">
   <div class="title">

network-api/networkapi/buyersguide/templates/fragments/signup_requirement.html

@@ -1,4 +1,4 @@
-{% load yes_no i18n %}
+{% load bg_selector_tags i18n %}
 
 <div class="signup-requirement d-flex flex-column">
   <div class="title">

network-api/networkapi/buyersguide/templates/product_page.html

@@ -1,6 +1,6 @@
 {% extends "./bg_base.html" %}
 
-{% load yes_no env cloudinary l10n i18n static %}
+{% load bg_selector_tags env cloudinary l10n i18n static %}
 
 {% block head_extra %}
   <meta property="og:title" content="{% blocktrans context "This can be localized. This is a reference to the “*batteries not included” mention on toys." %}privacy not included - {{ product.name }}{% endblocktrans %}" />

network-api/networkapi/buyersguide/templatetags/bg_selector_tags.py

@@ -0,0 +1,49 @@
+from django import template
+from django.utils.translation import gettext, pgettext
+
+register = template.Library()
+
+
+@register.filter
+def yes_no(value):
+    """Converts boolean to yes or no string"""
+    if value is None:
+        return gettext('Unknown')
+    # Python doesn't have a ternary, so we rely on
+    # type coercion to turn False into 0 and True
+    # into 1, and using that as list index.
+    return (gettext('No'), gettext('Yes'))[value]
+
+
+@register.filter
+def extended_yes_no(value):
+    """Converts quad-state to human readable string"""
+    if value == 'U':
+        return gettext('Unknown')
+    if value == 'NA':
+        return gettext('N/A')
+    if value == 'Yes':
+        return gettext('Yes')
+    if value == 'No':
+        return gettext('No')
+    return value
+
+
+@register.filter
+def track_record(value):
+    """
+    effects localization for company track records. While it might
+    seem easier to just return gettext(value), we want to be explicit
+    about the possible options, and the context in which to apply
+    this tag, rather than a generic "localize" tag.
+    """
+    lcontext = "This is a rating for a company's history concerning privacy"
+    if value == 'Great':
+        return pgettext(lcontext, 'Great')
+    if value == 'Average':
+        return pgettext(lcontext, 'Average')
+    if value == 'Needs Improvement':
+        return pgettext(lcontext, 'Needs Improvement')
+    if value == 'Bad':
+        return pgettext(lcontext, 'Bad')
+    return value