@@ -143,6 +143,7 @@ That's basically all there is to the organizational structure. Read the next se
* `chapter` -- top level organization unit of a course. The courseware display code currently expects the top level `course` element to contain only chapters, though there is no philosophical reason why this is required, so we may change it to properly display non-chapters at the top level.
* `course` -- top level tag. Contains everything else.
* `customtag` -- render an html template, filling in some parameters, and return the resulting html. See below for details.
* `discussion` -- Inline discussion forum
* `html` -- a reference to an html file.
* `error` -- don't put these in by hand :) The internal representation of content that has an error, such as malformed xml or some broken invariant. You may see this in the xml once the CMS is in use...
* `problem` -- a problem. See elsewhere in edx4edx for documentation on the format.
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@@ -171,6 +172,33 @@ When we see `<customtag impl="special" animal="unicorn" hat="blue"/>`, we will:
Since `customtag` is already a pointer, there is generally no need to put it into a separate file--just use it in place: <customtag url_name="my_custom_tag" impl="blah" attr1="..."/>
### `discussion`
The discussion tag embeds an inline discussion module. The XML format is:
* `for`: A string that describes the discussion. Purely for descriptive purposes (to the student).
* `id`: The identifier that the discussion forum service uses to refer to this inline discussion module. Since the `id` must be unique and lives in a common namespace with all other courses, the preferred convention is to use `<course_name>_<course_run>_<descriptor>` as in the above example. The `id` should be "machine-friendly", e.g. use alphanumeric characters, underscores. Do **not** use a period (e.g. `6.002x_Fall_2012_Overview`).
* `discussion_category`: The inline module will be indexed in the main "Discussion" tab of the course. The inline discussions are organized into a directory-like hierarchy. Note that the forward slash indicates depth, as in conventional filesytems. In the above example, this discussion module will show up in the following "directory":
```
Week 1 / Overview / Course overview
```
Further discussion on `discussion_category`:
Note that the `for` tag has been appended to the end of the `discussion_category`. This can often lead into deeply nested subforums, which may not be intended. In the above example, if we were to use instead:
