Here are a couple of potentially useful tags. Note that if <count>
is modified to use this.try.+(0) instead of this.try.to_int the two
tags could potentially merged into one.
Bryan
<!--
A convenience tag to output a sum of counts and a correctly pluralised
label. Works with any type of collection.
### Usage
<count-all:comments attribute="votes"/> -> <span class="count">17
Votes</span>
If no `label` is passed, the attribute is used as the label.
All attributes are passed to `<count>` unchanged, including `label`,
`prefix`, `if-any` and `lowercase`
-->
<def tag="count-all" attrs="attribute, label">
<%
count = this.inject(0) {|total, item|
val = item.send(attribute)
# inspired by rapid_core.dryml:497
total + (val.try.to_int || val.try.total_entries ||
(val.try.loaded? && val.try.length) || val.try.count ||
val.try.length)
}
label ||= attribute.singularize.humanize
%>
<count with="&count" label="&label" merge-attrs />
</def>
<!--
A convenience tag to output a sum of attribute values. Works with any
type of collection.
### Usage
<sum:comments attribute="score"/> -> 42
-->
<def tag="sum" attrs="attribute">
<%=
this.inject(nil) {|total, item|
val = item.send(attribute)
c = val.try.+(0) || val.try.total_entries || (val.try.loaded? &&
val.try.length) || val.try.count || val.try.length
if total.nil?
c
else
total+c
end
}
%>
</def>
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