| BLOCK_CACHE_GLOBAL | block/ block.module | The block is the same for every user on every page where it is visible. |
| BLOCK_CACHE_PER_PAGE | block/ block.module | The block can change depending on the page being viewed. |
| BLOCK_CACHE_PER_ROLE | block/ block.module | The block can change depending on the roles the user viewing the page belongs to.
This is the default setting, used when the block does not specify anything. |
| BLOCK_CACHE_PER_USER | block/ block.module | The block can change depending on the user viewing the page.
This setting can be resource-consuming for sites with large number of users,
and thus should only be used when BLOCK_CACHE_PER_ROLE is not sufficient. |
| BLOCK_NO_CACHE | block/ block.module | The block should not get cached. This setting should be used:
for simple blocks (notably those that do not perform any db query),
where querying the db cache would be more expensive than directly generating
the content.
for blocks that change too... |
| BLOCK_REGION_NONE | block/ block.module | Denotes that a block is not enabled in any region and should not
be shown. |
| COMMENT_ANONYMOUS_MAYNOT_CONTACT | comment/ comment.module | Anonymous posters may not enter their contact information. |
| COMMENT_ANONYMOUS_MAY_CONTACT | comment/ comment.module | Anonymous posters may leave their contact information. |
| COMMENT_ANONYMOUS_MUST_CONTACT | comment/ comment.module | Anonymous posters must leave their contact information. |
| COMMENT_CONTROLS_ABOVE | comment/ comment.module | Comment controls should be shown above the comment list. |
| COMMENT_CONTROLS_ABOVE_BELOW | comment/ comment.module | Comment controls should be shown both above and below the comment list. |
| COMMENT_CONTROLS_BELOW | comment/ comment.module | Comment controls should be shown below the comment list. |
| COMMENT_CONTROLS_HIDDEN | comment/ comment.module | Comment controls are hidden. |
| COMMENT_FORM_BELOW | comment/ comment.module | Comment form should be shown below post or list of comments. |
| COMMENT_FORM_SEPARATE_PAGE | comment/ comment.module | Comment form should be displayed on a separate page. |
| COMMENT_MODE_FLAT_COLLAPSED | comment/ comment.module | Comments are displayed in a flat list - collapsed. |
| COMMENT_MODE_FLAT_EXPANDED | comment/ comment.module | Comments are displayed in a flat list - expanded. |
| COMMENT_MODE_THREADED_COLLAPSED | comment/ comment.module | Comments are displayed as a threaded list - collapsed. |
| COMMENT_MODE_THREADED_EXPANDED | comment/ comment.module | Comments are displayed as a threaded list - expanded. |
| COMMENT_NODE_DISABLED | comment/ comment.module | Comments for this node are disabled. |
| COMMENT_NODE_READ_ONLY | comment/ comment.module | Comments for this node are locked. |
| COMMENT_NODE_READ_WRITE | comment/ comment.module | Comments are enabled on this node. |
| COMMENT_NOT_PUBLISHED | comment/ comment.module | Comment is awaiting approval. |
| COMMENT_ORDER_NEWEST_FIRST | comment/ comment.module | Comments are ordered by date - newest first. |
| COMMENT_ORDER_OLDEST_FIRST | comment/ comment.module | Comments are ordered by date - oldest first. |
| COMMENT_PREVIEW_OPTIONAL | comment/ comment.module | Comment preview is optional. |
| COMMENT_PREVIEW_REQUIRED | comment/ comment.module | Comment preview is required. |
| COMMENT_PUBLISHED | comment/ comment.module | Comment is published. |
| DRUPAL_CORE_COMPATIBILITY | system/ system.module | Core API compatibility. |
| DRUPAL_MAXIMUM_TEMP_FILE_AGE | system/ system.module | Maximum age of temporary files in seconds. |
| DRUPAL_MINIMUM_MYSQL | system/ system.module | Minimum supported version of MySQL, if it is used. |
| DRUPAL_MINIMUM_PGSQL | system/ system.module | Minimum supported version of PostgreSQL, if it is used. |
| DRUPAL_MINIMUM_PHP | system/ system.module | Minimum supported version of PHP. |
| DRUPAL_MINIMUM_PHP_MEMORY_LIMIT | system/ system.module | Minimum recommended value of PHP memory_limit. |
| EMAIL_MAX_LENGTH | user/ user.module | |
| FILTER_FORMAT_DEFAULT | filter/ filter.module | |
| FILTER_HTML_ESCAPE | filter/ filter.module | |
| FILTER_HTML_STRIP | filter/ filter.module | |
| LANGUAGE_LTR | locale/ locale.module | Language written left to right. Possible value of $language->direction. |
| LANGUAGE_RTL | locale/ locale.module | Language written right to left. Possible value of $language->direction. |
| MENU_MAX_MENU_NAME_LENGTH_UI | menu/ menu.module | Maximum length of menu name as entered by the user. Database length is 32
and we add a menu- prefix. |
| NODE_BUILD_NORMAL | node/ node.module | |
| NODE_BUILD_PREVIEW | node/ node.module | |
| NODE_BUILD_PRINT | node/ node.module | |
| NODE_BUILD_RSS | node/ node.module | |
| NODE_BUILD_SEARCH_INDEX | node/ node.module | |
| NODE_BUILD_SEARCH_RESULT | node/ node.module | |
| NODE_NEW_LIMIT | node/ node.module | |
| OPENID_DH_DEFAULT_GEN | openid/ openid.inc | |
| OPENID_DH_DEFAULT_MOD | openid/ openid.inc | |
