error saving page

[Frank Vèssia]

i'm creating some pages from an xml, sometimes i get this error:

admin:/grab/:ProcessWire Error:Exception: Unknown Selector operator: '' -- was your selector value properly escaped? (in /home/librolo/public_html/wire/core/Selectors.php line 135)

#0 /home/librolo/public_html/wire/core/Selectors.php(160): Selectors->create('indagine', '', 'senza censure s...')
#1 /home/librolo/public_html/wire/core/Selectors.php(63): Selectors->extractString('has_parent=1485...')
#2 /home/librolo/public_html/wire/core/Pages.php(111): Selectors->__construct('has_parent=1485...')
#3 [internal function]: Pages->___find('has_parent=1485...', Array)
#4 /home/librolo/public_html/wire/core/Wire.php(267): call_user_func_array(Array, Array)
#5 /home/librolo/public_html/wire/core/Wire.php(229): Wire->runHooks('find', Array)
#6 /home/librolo/public_html/wire/core/Page.php(656): Wire->__call('find', Array)
#7 /home/librolo/public_html/wire/core/Page.php(656): Pages->find('has_parent=1485...', Array)
#8 /home/librolo/public_html/site/templates/grab.php(123): Page->find('template=libro,...')
#9 /home/librolo/public_html/site/templates

before saving the page i use always the sanitizer for every field.

[Adam Kiss]

This often happens if you put space (' ') between query selector ('template') and sign ('='). Check that on your line 123 in grab.php.

[Frank Vèssia]

this is my query

$find=wire('pages')->get(1485)->find("template=libro,title%=$titolo");

looks correct...

[ryan]

The problem appears to be a result of characters in your $titolo field. You mentioned you are using $sanitizer, but didn't mention if you are using $sanitizer->selectorValue() before bundling the value into your selector. You would want to do this in addition to any other $sanitizer/sanitization you are already doing. This is because selector values need to be sanitized so that the values in them don't get confused as other components of a selector. So make sure that you are doing this:

<?php
$titolo = $sanitizer->selectorValue($titolo); 
$find=wire('pages')->get(1485)->find("template=libro,title%=$titolo");

If that doesn't work, try echoing the value of $titolo before calling find() so that you can see which one is causing the problem. From what I can tell, it starts with "senza censure". I am thinking that you can fix this just with $sanitizer->selectorValue(), but if not then paste in the full value here that is causing the problem and we can analyze it further.