[wp-trac] [WordPress Trac] #41857: Walker_PageDropdown doesn't set correct selected value when using value_field

[WordPress Trac]

#41857: Walker_PageDropdown doesn't set correct selected value when using
value_field
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 Reporter:  it4life            |       Owner:  (none)
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Posts, Post Types  |     Version:  4.8.1
 Severity:  normal             |  Resolution:
 Keywords:                     |     Focuses:
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Comment (by soupia18):

 I arrived here because of this issue, as the wp_dropdown_pages cannot set
 selected when value_field is other than the ID.

 After reading the discussion above, about the possibility of using fields
 with non-unique values, then there are 2 options here:

 Either, the value_field makes no real sense to exist as an option, or
 since it's there, then it should give the freedom to the developer to
 decide how to use it: I mean with what field as default value. In that
 case something like below would do the job:

 {{{
 if ( $page->{$args['value_field']} == $args['selected'] ) {
         $output .= ' selected="selected"';
 }
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/41857#comment:5>
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