Only show "preferred theme" to admins

Something I've been wanting to do, is hide the themeselector on the profile page -- only for normal users. This allows me to choose a default theme for a new user and they can never change it.

1) Go to:  /moodleroot/user/editlib.php
2)  Close to the end of the file, you will see this code:


if (!empty($CFG->allowuserthemes)) 
    {
        $choices = array();
        $choices[''] = get_string('default');
        $themes = get_list_of_themes();
        foreach ($themes as $key=>$theme) {
            if (empty($theme->hidefromselector)) {
                $choices[$key] = $theme->name;
            }
        }
        $mform->addElement('select', 'theme', get_string('preferredtheme'), $choices);
    }

3)  All we are going to do is add an extra statement within the "if", to check also if the user is an admin:


if (!empty($CFG->allowuserthemes) && is_siteadmin($user)) 

4)  And voila! Only admins can see that field on the profile page now.

Stop the navigation block from expanding

If you want to stop the navigation from automatically expanding everything you click a course, this is the code you need to change:

1) Go to:  blocks\navigation in your root moddle directory

2)  open renderer.php file

and change this line

if ($item->has_children() && (!$item->forceopen || $item->collapse)) {

to this

if ($item->has_children() && ($depth > 1)) {

Only show block to certain user

I wanted to hide my "Settings" block from all other users, except the admin role.

1)  I went into the file called:  mymoodleroot/blocks/settings/block_settings.php
2)  Inside two functions, I simply placed a role check at the beginning:

 function get_content() 
 {
    // only shows the settings block to admins
    global $USER, $CFG, $DB;
    if(!is_siteadmin($USER)) {return;}
        ...
}


function init() 
    {
    global $USER, $CFG, $DB;
    if(!is_siteadmin($USER)) {return;}

      ...

}

I'm sure that code could be modified to display to different roles and possibilities. This is just a simple example and it works!

Make a custom login page

Inside your theme folder, you need to change a couple files:

1) Inside the main theme folder, open the config.php file. Scroll down to where you see "login" and you can change that to read your own custom page. In my case, I made this change:
       From:
       ...
        ),
       'login' => array(
        'file' => 'general.php',
        'regions' => array(),
    ),
    ...

    To:
     ...
     ),
    'login' => array(
        'file' => 'login.php',
        'regions' => array(),
    ),
    ....

2) Next, I copied the general.php file, so I can use the same theme settings for my login.php page. However, I took out all the unnecessary sections: langmenu, custom menu, and side blocks. So basically I just show my logo, the main content, and the footer.

3) Lastly, I added some custom CSS to my core.php page to make the login elements look the way I wanted to. I centered all the elements on screen with a nice background like this:

Here is the CSS I used to make this:

/* ////////////////////////////////////////////////////  LOGIN PANEL //////////////////////////////////////////// */

.twocolumns div.loginpanel 

{

     border-right: 1px dashed #dadada !important; 

}

.onecolumn div.loginpanel

{

    position:relative;

    width:35%;

    margin: 0 auto;

    

    background:#ececec;

    background: -webkit-gradient(linear, 0 100, 0 bottom, from(#ececec), to(#bfbfbf)); 

    background: -moz-linear-gradient(#ececec, #bfbfbf);

    background: -ms-linear-gradient(#ececec, #bfbfbf);

    background: -o-linear-gradient(#ececec, #bfbfbf);

    background: linear-gradient(#ececec, #bfbfbf);

    -pie-background: linear-gradient(#ececec, #bfbfbf);

    

    border: 1px solid #a2a2a2;

    -webkit-border-radius:10px;

    -moz-border-radius:10px;

    border-radius:10px;

    behavior: url(PIE.htc);

}

div.loginpanel h2

{

    text-align:center;

    text-transform:none;

}

.loginbox .loginform

{

   width: 100%;

   height:20em;

   vertical-align:middle;

}

.loginbox .loginform .form-input

{

     vertical-align:middle;

     text-align:center;

     float:none;

     clear:both;

     width:100%;

     padding-bottom:1em;

}

.loginbox .loginform .form-label

{

    padding: 0em 0em 0.3em 2em;

    text-align:center;

}

.loginbox .loginform .form-input #username, 

.loginbox .loginform .form-input #password 

{

    position:relative;

    min-height:1.7em;

    width:60%;

    border-size:1px inset #d9d9d9;

    

    -webkit-border-radius:10px;

    -moz-border-radius:10px;

    border-radius:10px;

    behavior: url(PIE.htc);

}

.loginbox .loginform .form-input #loginbtn

{

    vertical-align:middle;

    display:block;

    padding:1em;

    width:10em;

    border:1px solid #bfbfbf;

    

    position:relative;

    -webkit-border-radius:5px;

    -moz-border-radius:5px;

    border-radius:5px;

    behavior: url(PIE.htc);

}

.loginbox .loginform .form-input #loginbtn:hover

{

    color:white;

    background:#5b2d7e;

}

div.forgetpass, 

div.centeredcookies 

{

   text-align:center;

}

/* ////////////////////////////////////////////////////  END OF LOGIN PANEL //////////////////////////////////////////// */

Adding search bar in top menu bar

Using the new Aardvark theme (2.2 blackbird version), I was able to insert a search bar in the top menu by making some modifications:

1) In styles/general.php, I added the header information I needed between the <head> tags
2) In layout/profileblock.php, I added my own code around line 62:

....

<?php
echo '</div>'; // end of headerwrap
?>
<!--/////////// This is the search bar  ////////////-->
<div id="mysearchbar"  >
<input type="text" class="autosuggest_search" />
</div>

</div>
<div class="profilebar" id="profilebar" style="display: none;">
...

Now my searchbar is inline with the custom menu and other elements. Yippee!

Easily finding an entry in your database activity

Here is a nice sql query to find an entry in your database activity, while searching for a specific text string:


$query = "SELECT * FROM {data_content} c JOIN {data_records} r ON r.id = c.recordid WHERE r.dataid=? AND c.content=?";
if($results = $DB->get_records_sql($query, array($data->id, 'my search string')))
{
    // do something here with results
}

It's a nice snippet!

Create an empty page for Moodle

I came across this code in the forum today and I thought it's a nice snippet to keep. This shows how to create a new, blank page within the moodle system.


<?php


// The number of lines in front of config file determine the // hierarchy of files.
require_once(dirname(dirname(__FILE__)).'/../config.php');


$PAGE->set_context(get_system_context());
$PAGE->set_pagelayout('admin');
$PAGE->set_title("Your title");
$PAGE->set_heading("Blank page");
$PAGE->set_url($CFG->wwwroot.'/blank_page.php');


echo $OUTPUT->header();


// Actual content goes here
echo "Hello World";


echo $OUTPUT->footer();
?>

Simple as that!