protected function showDeleteTagForm($tag)
{
$user = $this->getUser();
if (!$user->isAllowed('deletechangetags')) {
throw new PermissionsError('deletechangetags');
}
$out = $this->getOutput();
$out->setPageTitle($this->msg('tags-delete-title'));
$out->addBacklinkSubtitle($this->getPageTitle());
// is the tag actually able to be deleted?
$canDeleteResult = ChangeTags::canDeleteTag($tag, $user);
if (!$canDeleteResult->isGood()) {
$out->addWikiText("<div class=\"error\">\n" . $canDeleteResult->getWikiText() . "\n</div>");
if (!$canDeleteResult->isOK()) {
return;
}
}
$preText = $this->msg('tags-delete-explanation-initial', $tag)->parseAsBlock();
$tagUsage = ChangeTags::tagUsageStatistics();
if (isset($tagUsage[$tag]) && $tagUsage[$tag] > 0) {
$preText .= $this->msg('tags-delete-explanation-in-use', $tag, $tagUsage[$tag])->parseAsBlock();
}
$preText .= $this->msg('tags-delete-explanation-warning', $tag)->parseAsBlock();
// see if the tag is in use
$this->extensionActivatedTags = array_fill_keys(ChangeTags::listExtensionActivatedTags(), true);
if (isset($this->extensionActivatedTags[$tag])) {
$preText .= $this->msg('tags-delete-explanation-active', $tag)->parseAsBlock();
}
$fields = [];
$fields['Reason'] = ['type' => 'text', 'label' => $this->msg('tags-delete-reason')->plain(), 'size' => 50];
$fields['HiddenTag'] = ['type' => 'hidden', 'name' => 'tag', 'default' => $tag, 'required' => true];
$form = new HTMLForm($fields, $this->getContext());
$form->setAction($this->getPageTitle('delete')->getLocalURL());
$form->tagAction = 'delete';
// custom property on HTMLForm object
$form->setSubmitCallback([$this, 'processTagForm']);
$form->setSubmitTextMsg('tags-delete-submit');
$form->setSubmitDestructive();
// nasty!
$form->addPreText($preText);
$form->show();
}
public function execute()
{
$params = $this->extractRequestParams();
$prop = array_flip($params['prop']);
$fld_displayname = isset($prop['displayname']);
$fld_description = isset($prop['description']);
$fld_hitcount = isset($prop['hitcount']);
$fld_defined = isset($prop['defined']);
$fld_source = isset($prop['source']);
$fld_active = isset($prop['active']);
$limit = $params['limit'];
$result = $this->getResult();
$extensionDefinedTags = array_fill_keys(ChangeTags::listExtensionDefinedTags(), 0);
$explicitlyDefinedTags = array_fill_keys(ChangeTags::listExplicitlyDefinedTags(), 0);
$extensionActivatedTags = array_fill_keys(ChangeTags::listExtensionActivatedTags(), 0);
$definedTags = array_merge($extensionDefinedTags, $explicitlyDefinedTags);
# Fetch defined tags that aren't past the continuation
if ($params['continue'] !== null) {
$cont = $params['continue'];
$tags = array_filter(array_keys($definedTags), function ($v) use($cont) {
return $v >= $cont;
});
$tags = array_fill_keys($tags, 0);
} else {
$tags = $definedTags;
}
# Merge in all used tags
$this->addTables('change_tag');
$this->addFields('ct_tag');
$this->addFields(array('hitcount' => $fld_hitcount ? 'COUNT(*)' : '0'));
$this->addOption('LIMIT', $limit + 1);
$this->addOption('GROUP BY', 'ct_tag');
$this->addWhereRange('ct_tag', 'newer', $params['continue'], null);
$res = $this->select(__METHOD__);
foreach ($res as $row) {
$tags[$row->ct_tag] = (int) $row->hitcount;
}
# Now make sure the array is sorted for proper continuation
ksort($tags);
$count = 0;
foreach ($tags as $tagName => $hitcount) {
if (++$count > $limit) {
$this->setContinueEnumParameter('continue', $tagName);
break;
}
$tag = array();
$tag['name'] = $tagName;
if ($fld_displayname) {
$tag['displayname'] = ChangeTags::tagDescription($tagName);
}
if ($fld_description) {
$msg = $this->msg("tag-{$tagName}-description");
$tag['description'] = $msg->exists() ? $msg->text() : '';
}
if ($fld_hitcount) {
$tag['hitcount'] = $hitcount;
}
$isExtension = isset($extensionDefinedTags[$tagName]);
$isExplicit = isset($explicitlyDefinedTags[$tagName]);
if ($fld_defined) {
$tag['defined'] = $isExtension || $isExplicit;
}
if ($fld_source) {
$tag['source'] = array();
if ($isExtension) {
$tag['source'][] = 'extension';
}
if ($isExplicit) {
$tag['source'][] = 'manual';
}
}
if ($fld_active) {
$tag['active'] = $isExplicit || isset($extensionActivatedTags[$tagName]);
}
$fit = $result->addValue(array('query', $this->getModuleName()), null, $tag);
if (!$fit) {
$this->setContinueEnumParameter('continue', $tagName);
break;
}
}
$result->addIndexedTagName(array('query', $this->getModuleName()), 'tag');
}
