I am creating a MediaWiki plug-in that lists many files. For each file, I want to print a [Talk] or [Discuss] link. (It seems that the original name was talk but that it was renamed to discuss.) These links should be red if the page does not exist and blue if it does exist.
There should be a way to add such links in OutputPage.php, but I can't figure it out.
I know about these functions "foo":
$page = WikiPage::factory ( $title )
$talk = $title->getTalkPage()
But I'm not sure how to get $title from foo.
I'm also not sure how to change $talk into the appropriate HTML. I'd rather not add it to the output stream, because I'm building a lot of HTML separately, but I suppose I can refactor so that instead of passing my strings around, I pass around a handle to the output.
Why don't you use OutputPage::addWikiText() to add the appropriate link without worrying about the technical details: [[{{ns:11}}:Foo|Text]] for example.
Alternatively you can get $title from OutputPage::getTitle() for the current page, or from Title::newFromText() for any title you want to use. You can get $talk directly by specifying the correct namespace constant, which might be even easier than the trip via a WikiPage object.
Correct styling for the link can be done with the helper methods Title::exists() and one of the appropriate helpers for generating urls for pages.
See also https://doc.wikimedia.org/mediawiki-core/master/php/classTitle.html
Related
My extension renders additional links on a page (that is adds some <a href='...'>...</a> to the page text (in HtmlPageLinkRendererEnd hook)).
See small arrows in https://withoutvowels.org/wiki/Tanakh:Genesis_1:1 for an example. The arrows are automatically added by my extension (sorry, at the time of writing this the source code is not yet released).
The problem is that red/blue ("new") status is not updated for links which I add.
Please explain how to make Wikipedia to update color of my links as appropriate together with regular [[...]] MediaWiki links.
My current workaround is to run php maintenance/update.php. It is a very bad workaround. How to do it better?
Normally you'd use LinkRenderer to create the links and LinkBatch to make the page existence check efficient (you don't want a separate SQL query for each link). You can't really do that in HtmlPageLinkRendererEnd since you only learn about the links one by one.
The way the parser deals with this is that it replaces links with a placeholder and collects them in a list, then after parsing is mostly done it looks them all up at once and then switches the placeholders with the rendered links. You can probably hook into somthing that happens between the two (e.g. ParserAfterParse), get the list of links from the parser and use them to build a list of your own links.
With valuable help of Wikitech-l mailing list, I found a solution.
The solution is to use ParserAfterTidy hook.
public static function onParserAfterTidy( &$parser, &$text ) {
# ...
$parserOutput = $parser->getOutput();
foreach($parserOutput->getLinks() as ...) {
# ...
$parserOutput->addLink( Title::newFromDBkey(...) );
}
}
Assume I have the following code section:
<syntaxhighlight lang = "php">
function my_func($str) {
$arr = split($str, ' ');
}
</syntaxhighlight>
This would be highlighted with the help of Geshi extension. However, I would also like to make split as a url link to the external site with documentation explaining what this function does. Is there like any way to do that in MediaWiki for the highlighted code?
Since Geshi works like the <pre> tag to display the code is displayed as typed instead of parsing it as wikicode, mediawiki can't parse anything inside it. Therefore its impossible to add a 'normal' link using wiki code.
Good news is that GeSHi already have exactly what you need!
First, you will need to set in localSettings.php:
$wgSyntaxHighlightKeywordLinks = true;
By doing that it will each function will be a link to http://www.php.net/<function name> (since your example is using php code).
If what you want is a link to somewhere else (your own site maybe), you will need to edit the 'URLS' array in $IP/SyntaxHighlight_GeSHi/geshi/geshi/php.php
(more information on GeSHi's documentation)
And if you will need links on functions for other languages other than php, just edit the according file instead. For example:
$IP/SyntaxHighlight_GeSHi/geshi/geshi/lolcode.php
I was wondering if there is a way to upload images in rails 4 not using erb. I have my html code in quotations in my model (so that i can use it as a default for when creating a page). SO I cant put erb in the quotes, cuz if i do it'll come out as the erb code and not the actual view. (i.e. the upload image form. itll come out as the actual f.image_tag instead of the actual upload button).
So I am just seeing if there another way i could implement image uploading into the quotations that wont require erb. But, uses Rails 4.
If you have plain HTML code inside the string, and just want it to be displayed, you need to call .html_safe in your view, like:
'<div id="foo">bar</div>'.html_safe()
Note that normally is a bad practice: that doesn't mean it is always bad, but it means that it is always an attention point to make sure it is the best way to do it.
If you want to do image upload without using form.image_tag, you can just put that in your view and see the generated code (Ctrl+U in Chrome), that, in this case, will be something like:
<input type="file" id="something" />
And add that to the string. Probably some finer validation and options are added too via JS, that would be a pain to add this way - one way to be to add a script tag to the html with the code.
If, however, your string already contains code like this, and you are asking way it is not working, then you need to add an eval to the caller, e.g.:
eval('form.image_tag :image')
Not that this is an even worse smell, and it should be avoided at all costs.
Maybe it would be better to add some flags in your section.rb model, and then use that in a helper or in the view render the html; for example, a has_upload? field, and then you can do something like this:
if #section.has_upload?
form.image_tag :imagem
end
Does anyone know if it's possible to extract the URL and if a value is found within the URL to display/hide something?
For instance, if I have a navigation bar that I want to only display for pages that contain 'copier' and I have URL aliases setup, can I setup Views module (or something like that) to check the URL for the 'copier' value and if it's found to display the navigation? If so, how would I go about doing that?
I know there can't be duplicate URL aliases but if say I had them as:
node/Copier
node/Copier-training
Could I check that URL and see if copier is present, and if it is display the navigation assoicated with copier?
I'm not really familiar with Views.
Not sure if this answers your question or not, the mention of Views is throwing me off a bit, but I believe all you need work with is a Block. You put your navigation into the Block, and then set the "Visilibity Settings" to be
node/*copier*
and set "Show block on specific pages" to "Only the listed pages".
This would then show the block on any page with copier in the URL, however this would only work for URLs of the type node/blahblahblah, if you wanted it to also show on say a URL such as blog/copier-training you would have to add another line to the Visibility Settings of the Block
node/*copier*
blog/*copier*
and also for any subsequent drill-downs also, for instance say blog/richie/copier-training would require
node/*copier*
blog/*copier*
blog/richie/*copier*
alternatively you could write a whole load of wildcarded options that go as deep as your site URLs may go
*/*copier*
*/*/*copier*
*/*/*/*copier*
ad infinitum
which is probably better...
If you do want to show a View within the Block you can use the following PHP
<?php
//load the view by name
$view = views_get_view('sample_view');
//output the view
print views_build_view('embed', $view);
?>
Hope this helped.
I am scraping a website and am trying to pull out certain elements from the HTML. In the sites I am scraping, there are script tags with a bunch of info in them however, there is one part inside these tags that I am interested in. The line basically looks like:
'image':'http://ut5.example.com/t/231/3_b_643435.jpg',
With some stuff above and below it. Now, this is different for each page source except for obviously the domain and some of the subfolders that store the images.
How would I go about looking through the source for this specific line, and cutting out just the URL? I would need to use regular expressions I feel as the URLs are dynamic.
The "gsub" method does something similar to what I want to search for, with its ability to use /regex/. But, I am not wanting to replace anything, I just want to find that URL in the source code using a /regex/ and copy it.
According to you comments, this is what you're looking for I guess
var regex = /http.+/;
Example http://jsfiddle.net/Km9ZB/