#1074: Allow control over exporting behavior in combination with argument bases
-------------------------+--------------------------------------------------
Reporter: david | Owner: dominik
Type: enhancement | Status: new
Priority: normal | Milestone: 1.0.1
Component: validation | Version: 1.0.0
Severity: normal | Keywords:
Has_patch: 0 |
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While fixing #1073, we need to implement a way to control the exporting of
values when arrays (through argument bases) come into play.
For instance, when validating
{{{
<arguments base="foo[]"><argument /></arguments>
}}}
and one wants to export to an array "bar" while preserving the keys, the
syntax will be:
{{{
<ae:parameter name="export">bar[%2$s]</ae:parameter>
}}}
because the argument base in this case contains two parts:
1. foo
2. <current key in iteration>
As you can see, it uses {{{sprintf()}}} syntax. The input is always the
current argument base, which *never* includes the argument itself. For
example, for
{{{
<arguments base="foo[]"><argument>bar</arguments>
}}}
the base contains
1. foo
2. <current key in iteration>
so if you want to rename the "foo" array to "bar" and preserve the other
keys, you have to do:
{{{
<ae:parameter name="export">bar[%2$s][bar]</ae:parameter>
}}}
There are two other special cases:
1. Using {{{[]}}} will always result in an empty string ({{{string(0)
""}}}) key, except when {{{[]}}} is used at the *end* of {{{export}}},
then it will append to the array instead (like the PHP syntax {{{$foo[]}}}
does)
2. You can reduce elements to a single value, if you want to, by doing
something like {{{<ae:parameter name="export">lastfoo</ae:parameter>}}}
You could also do something like
{{{
<arguments base="foo[]"><argument /></arguments>
<ae:parameter name="export">foo_%2$s</ae:parameter>
}}}
to export {{{foo[*]}}} to {{{foo_*}}}. The other way round is not
possible, of course.
--
Ticket URL: <http://trac.agavi.org/ticket/1074>
Agavi <http://www.agavi.org/>
An MVC Framework for PHP5
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