Moodle Database API Examples to Learn From

Moodle Database API represents a free learning administration framework that empowers you to make effective, adaptable, and captivating web learning encounters. Moodle works on any web server that backs the PHP programming dialect, and a database. It works best and is most benefiecial when running on the Apache web server with a Mysql database. These necessities, Apache, PHP, and Mysql are normal to a very large share of business web hosts, even the ones with minimal expenses.

In the event that you do utilize the API and within specific the get_records_sql() system, then it’s imperative to include a unique column that represents the first field in select rundown.

Moodle Database API Examples to Learn From

 

Example 1 will give back an altogether different record set than Example 2.

Example 1

worldwide $db;

return

$db->get_records_sql(‘

SELECT

c.id AS courseid,

c.fullname,

u.firstname,

u.lastname

FROM

mdl_role_assignments ra,

mdl_user u,

mdl_course c,

mdl_context cxt

WHERE ra.userid = u.id

Also ra.contextid = cxt.id

Also cxt.contextlevel = 50

Also cxt.instanceid = c.id

‘);

Example 2

worldwide $db;

return

$db->get_records_sql(‘

SELECT

ra.id,

c.id AS courseid,

c.fullname,

u.firstname,

u.lastname

FROM

mdl_role_assignments ra,

mdl_user u,

mdl_course c,

mdl_context cxt

WHERE ra.userid = u.id

Also ra.contextid = cxt.id

Also cxt.contextlevel = 50

Also cxt.instanceid = c.id

‘);

What is the contrast? The sole contrast is the first field in the Select rundown. In Example 1, the first field is the courseid, which is an one of a kind esteem in the table, however not in this result set. In sample 2, I included the id field from the role_assignments table. I needn’t bother with this field, the question does! The main section is utilized as the cluster keys on the $records show – which is the way the information structure is returned by $db->get_records_sql().

Ommitting an exceptional worth field as the first field in the select rundown has frequented me for quite a while. I would sit for hrs connecting SQL to mysql workbench and see an alternate result than connecting the same SQL to the $db->get_records_sql() strategy Eventually, I would punt for calling the database utilizing mysql_query(), as opposed to the $db object.

When attempting to learn the Moodle database API, it’s necessary to understand that the first field represented in the select rundown must start with a unique column. Otherwise, the entire script will provide a result which is a lot different than the expected one and which won’t help you in your website creation process.

Another useful example is the one which helps you find the file size (in MB) of each table in the Moodle database. The tables can get large over time, so it’s better to monitor from time to time.

This can be achieved using the following script:

SELECT table_name, table_rows, data_length,
ROUND (((data_length+index_length) /1024 /1024, AS “Size in MB”
FROM information_schema.tables
WHERE table_schema = “db name”
ORDER BY data_length desc

The great thing about this script is that it allows you to watch over the dimension of each Moodle table, which you can choose to automatically clean every 7 or 14 days from the admin panel. You can also run it freely as long as you follow the sequence above.

Moodle is a highly advanced framework and it can benefit your website in many ways. However, you must learn to use it correctly. In this purpose, a good starting point asides from the examples followed above is represented by the following steps:

Step 1: Learn About the Moodle Experience

Every Learning Management System (or LMS) has a standard, or approach, that shapes the client encounter and energizes a certain sort of utilization. A LMS may energize extremely consecutive adapting by offering gimmicks that implement a given request on each one course.

It may dishearten learner to-understudy collaboration by offering few gimmicks that help it, while empowering solo adapting by offering numerous open doors for the learner to communicate with the course material. In this part, you will realize what Moodle can do and what sort of client encounter your understudies and instructors will have, utilizing Moodle. You will likewise look into the Moodle reasoning, and how it shapes the client experience. With this data, you’ll be prepared to choose how to make the best utilization of Moodle’s numerous peculiarities, and to arrange your web learning webpage.

Step 2: Install and Configure Moodle

Most of the choices you make while introducing and designing Moodle will influence the client experience. Learners and educators, as well as course makers and site overseers are influenced by these choices. While Moodle’s online help benefits work of letting you know how to introduce and arrange the product, it doesn’t let you know how the settings you pick influence the client experience. Section 2 blankets the ramifications of these choices, and helps you arrange the site with the goal that it acts in the way you imagine.

Step 3: Create the Framework for Your Site

In Moodle, each course has a place with a class. Part 3 takes you through making course classes, and after that making courses. In the same way that you picked extensive settings amid establishment and design, you pick broad settings while making each one course. This section lets you know the ramifications of the different course settings with the goal that you can make the experience you need for each one course.

At long last, step 3 takes you through the utilization of the different obstructs, each of which includes a generally characterized capacity to the site or to the course. In the wake of making the classifications and courses, and choosing which pieces to utilize, you’ve made a structure for your site. At that point you’re prepared to fill your courses with learning material and demonstrate knowledge of the Moodle database API.

Step 4: Make Your Site More Social

Moodle empowers you to include talks, discussions, and Wikis to your courses. These sorts of connections will be recognizable to numerous understudies. You can likewise make glossaries that are broad and particular to a solitary course. Understudies can add to the glossaries. At long last, Moodle offers a capable workshop instrument, which empowers understudies to view and assess every others work. Each of these associations makes the course additionally fascinating, additionally more muddled for the educator to oversee.

Step 5: Create a Welcome for New and Existing Student

Step 5 helps you make an open face for your Moodle site. You can demonstrate a Login Page or the Front Page of your site. The substance and conduct of the login and Front Pages might be tweaked. You can decide to permit unknown clients, oblige understudies to be enrolled, or utilize a combo of visitor and enlisted access. Each of these choices influences the sort of welcome that new and existing understudies get, when they first see your site. This helps you figure out which alternatives to utilize, and to join them to get the impact you covet. A Moodle Database API is very important to have in this regard.

Step 6: Use Tools to Deliver and Administer Courses

Moodle offers a few instruments to help educators control and convey courses. It keeps definite access logs that empower educators to see precisely what content understudies got to, and when. It additionally empowers instructors to build custom reviewing scales, which are accessible expansive or for a solitary course. Understudy evaluations could be gotten to online furthermore downloaded to a spreadsheet program. At long last, instructors can team up in extraordinary gatherings (release sheets) held only for them.

Step 7: Extend Moodle

Because Moodle is open source, new modules are continually being produced and helped by the Moodle group. The modules that are part of Moodle’s center dispersion are secured in this book. Extra modules enlarge Moodle’s capacities and enhance the Moodle database API. While this book can’t blanket each module accessible, it can blanket the methodology of introducing and incorporating new modules into your site. One of the modules included with the center appropriation is a Paypal module.

Follow the steps laid out above as well as the Moodle database API examples and you will soon become an expert in working with this framework.


Nicole Lewis is the Lead Author & Editor of MyLMStips. MyLMStips is dedicated to providing the most engaging topics, information, tips and tricks surrounding Moodle®. It's a place where Moodle® users can receive guidance on how to get the most out of it and increase their productivity and progress.