# 10.2. Discussion Components¶

You can add inline discussion components to any container in your course.

## 10.2.1. Create the XML File for a Discussion Component¶

There are two ways to create an inline discussion component in your course. The preferred way is to include a discussion tag inside a vertical, as demonstrated in the following example.

<vertical display_name="Lesson_1_Unit_1">
...
<discussion
discussion_category="Essays"
discussion_id="unique_id_here"
/>
</vertical>


The second way, which is deprecated, is to create an XML file in the discussion directory for each inline discussion component in your course, and to then reference XML file in a discussion tag inside a vertical, as shown in the following example.

The following is inside a vertical:

<vertical display_name="Lesson_1_Unit_1">
<discussion
/>
</vertical>


Create the file discussion/Peer_Grading.xml to define the inline discussion component, containing the following code.

<discussion
discussion_category="Essays"
discussion_id="unique_id_here"
/>


Note that the name of the XML file must match the value of the @url_name attribute of the discussion element in the vertical XML file.

## 10.2.2. Discussion Component XML File Elements¶

The root element of the XML file for the HTML component is file is discussion.

The discussion element contains no children.

## 10.2.3. discussion Element Attributes¶

Attribute Meaning
Required. discussion_category The name of the category for the inline discussion as shown in the main Discussion tab of the course. For example: Problem Set 1
Required. discussion_target The name of the subcategory for the inline discussion as shown in the Discussion tab of the course. For example: Problem 2
display_name Optional. The value that is displayed to students as the name of the discussion component. If you do not supply a display_name value, “Discussion” is supplied for you.
Optional. discussion_id The unique identifier that the discussion forum service uses to refer to this inline discussion component. This value must be unique across all courses in the edX deployment. We recommend that you leave this value blank so that a unique identifier is automatically generated.
Obsolete. id Use discussion_id instead.
Obsolete. for Use discussion_target instead.

## 10.2.4. Example Discussion Component XML File¶

The following example shows an XML file for a discussion component.

<discussion
discussion_category="Essays"