+/**
+ * @brief SQL query for items
+ */
+function item_query() {
+
+ return "SELECT ".item_fieldlists()." FROM `item` ".
+ item_joins()." WHERE ".item_condition();
+}
+
+/**
+ * @brief List of all data fields that are needed for displaying items
+ */
+function item_fieldlists() {
+
+/*
+These Fields are not added below (yet). They are here to for bug search.
+`item`.`type`,
+`item`.`extid`,
+`item`.`received`,
+`item`.`changed`,
+`item`.`moderated`,
+`item`.`target-type`,
+`item`.`target`,
+`item`.`resource-id`,
+`item`.`tag`,
+`item`.`inform`,
+`item`.`pubmail`,
+`item`.`visible`,
+`item`.`spam`,
+`item`.`bookmark`,
+`item`.`unseen`,
+`item`.`deleted`,
+`item`.`origin`,
+`item`.`forum_mode`,
+`item`.`last-child`,
+`item`.`mention`,
+`item`.`global`,
+`item`.`gcontact-id`,
+`item`.`shadow`,
+*/
+
+ return "`item`.`author-link`, `item`.`author-name`, `item`.`author-avatar`,
+ `item`.`owner-link`, `item`.`owner-name`, `item`.`owner-avatar`,
+ `item`.`contact-id`, `item`.`uid`, `item`.`id`, `item`.`parent`,
+ `item`.`uri`, `item`.`thr-parent`, `item`.`parent-uri`,
+ `item`.`commented`, `item`.`created`, `item`.`edited`,
+ `item`.`verb`, `item`.`object-type`, `item`.`postopts`, `item`.`plink`,
+ `item`.`guid`, `item`.`wall`, `item`.`private`, `item`.`starred`,
+ `item`.`title`, `item`.`body`, `item`.`file`, `item`.`event-id`,
+ `item`.`location`, `item`.`coord`, `item`.`app`, `item`.`attach`,
+ `item`.`rendered-hash`, `item`.`rendered-html`, `item`.`object`,
+ `item`.`allow_cid`, `item`.`allow_gid`, `item`.`deny_cid`, `item`.`deny_gid`,
+ `item`.`id` AS `item_id`, `item`.`network` AS `item_network`,
+
+ `author`.`thumb` AS `author-thumb`, `owner`.`thumb` AS `owner-thumb`,
+
+ `contact`.`network`, `contact`.`url`, `contact`.`name`, `contact`.`writable`,
+ `contact`.`self`, `contact`.`id` AS `cid`, `contact`.`alias`";
+}
+
+/**
+ * @brief SQL join for contacts that are needed for displaying items
+ */
+function item_joins() {
+
+ return "STRAIGHT_JOIN `contact` ON `contact`.`id` = `item`.`contact-id` AND
+ (NOT `contact`.`blocked` OR `contact`.`pending`)
+ LEFT JOIN `contact` AS `author` ON `author`.`id`=`item`.`author-id`
+ LEFT JOIN `contact` AS `owner` ON `owner`.`id`=`item`.`owner-id`";
+}
+
+/**
+ * @brief SQL condition for items that are needed for displaying items
+ */
+function item_condition() {
+
+ return "`item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`";
+}