Add a field to a content type
- Navigate to the Content types page (Administer > Structure > Content types).
- In the table, locate the row that contains your content type and click the MANAGE FIELDS link. If you can't find the MANAGE FIELDS link, be sure to enable the Field UI module.
- In the Add new field section, enter a label for the field.
- In the Field name field, enter the machine name for the field. You can only use numbers, lower-case letters and the underscore character (_).
- In the field type list, select one of the following types:
short text such as a name (limited to 255 characters)
long, multi-line alphanumeric text such as a biography
has one of two values (for example: "yes/no" or "true/false" or "small/large")
select from a list of text options (which can be formatted as either a drop-down list or checkboxes)
reference to a file (such as a PDF) on the Drupal file system
reference to an image file such as GIF, JPG, PNG on the Drupal file system
reference id to an existing Taxonomy Term (or tag)
a whole number, such as a year (e.g. 2012) or value (e.g. 1, 2, 5, 305); it does not allow decimals.
a number that can use decimals, such as 0.0123456789
a number that allows exact decimal values; often used for price or cost (such as $199.99)
select from a drop-down list of floats
select from a drop-down list of integers
Long text and summary
same as long text, but with an additional summary text
- In the Widget field, select a widget. The options vary depending on the field type.
- Click Save.
Note: Not all field types are provided by Drupal core. Things like References, Dates, Links, and various other types can be found by filtering on "field" in the module list on drupal.org (or "Content Construction Kit" for Drupal 6). Users of the CCK module in Drupal 6 should note that the node reference and user reference fields are not supported in Drupal 7 core; however, there is a separate References module that provides support for these fields in Drupal 7. In Drupal 7 Entity reference is a good option to use for references because in Drupal 7 most of things in core are managed through entity.