diff --git a/include/api.php b/include/api.php
index 1fbdd8f7fc..8f3dea6167 100644
--- a/include/api.php
+++ b/include/api.php
@@ -1122,18 +1122,8 @@ function api_statuses_update($type)
 		if ($throttle_day > 0) {
 			$datefrom = date(DateTimeFormat::MYSQL, time() - 24*60*60);
 
-			$r = q(
-				"SELECT COUNT(*) AS `posts_day` FROM `item` WHERE `uid`=%d AND `wall`
-				AND `created` > '%s' AND `id` = `parent`",
-				intval(api_user()),
-				dbesc($datefrom)
-			);
-
-			if (DBM::is_result($r)) {
-				$posts_day = $r[0]["posts_day"];
-			} else {
-				$posts_day = 0;
-			}
+			$condition = ["`uid` = ? AND `wall` AND `created` > ? AND `id` = `parent`", api_user(), $datefrom];
+			$posts_day = dba::count('item', $condition);
 
 			if ($posts_day > $throttle_day) {
 				logger('Daily posting limit reached for user '.api_user(), LOGGER_DEBUG);
@@ -1146,18 +1136,8 @@ function api_statuses_update($type)
 		if ($throttle_week > 0) {
 			$datefrom = date(DateTimeFormat::MYSQL, time() - 24*60*60*7);
 
-			$r = q(
-				"SELECT COUNT(*) AS `posts_week` FROM `item` WHERE `uid`=%d AND `wall`
-				AND `created` > '%s' AND `id` = `parent`",
-				intval(api_user()),
-				dbesc($datefrom)
-			);
-
-			if (DBM::is_result($r)) {
-				$posts_week = $r[0]["posts_week"];
-			} else {
-				$posts_week = 0;
-			}
+			$condition = ["`uid` = ? AND `wall` AND `created` > ? AND `id` = `parent`", api_user(), $datefrom];
+			$posts_week = dba::count('item', $condition);
 
 			if ($posts_week > $throttle_week) {
 				logger('Weekly posting limit reached for user '.api_user(), LOGGER_DEBUG);
@@ -1170,18 +1150,8 @@ function api_statuses_update($type)
 		if ($throttle_month > 0) {
 			$datefrom = date(DateTimeFormat::MYSQL, time() - 24*60*60*30);
 
-			$r = q(
-				"SELECT COUNT(*) AS `posts_month` FROM `item` WHERE `uid`=%d AND `wall`
-				AND `created` > '%s' AND `id` = `parent`",
-				intval(api_user()),
-				dbesc($datefrom)
-			);
-
-			if (DBM::is_result($r)) {
-				$posts_month = $r[0]["posts_month"];
-			} else {
-				$posts_month = 0;
-			}
+			$condition = ["`uid` = ? AND `wall` AND `created` > ? AND `id` = `parent`", api_user(), $datefrom];
+			$posts_month = dba::count('item', $condition);
 
 			if ($posts_month > $throttle_month) {
 				logger('Monthly posting limit reached for user '.api_user(), LOGGER_DEBUG);
@@ -2755,14 +2725,10 @@ function api_format_items_activities(&$item, $type = "json")
 		'attendmaybe' => [],
 	];
 
-	$items = q(
-		'SELECT * FROM `item`
-			WHERE `uid` = %d AND `thr-parent` = "%s" AND `visible` AND NOT `deleted`',
-		intval($item['uid']),
-		dbesc($item['uri'])
-	);
+	$condition = ['uid' => $item['uid'], 'thr-parent' => $item['uri']];
+	$ret = Item::selectForUser($item['uid'], ['author-id', 'verb'], $condition);
 
-	foreach ($items as $i) {
+	while ($i = dba::fetch($ret)) {
 		// not used as result should be structured like other user data
 		//builtin_activity_puller($i, $activities);
 
@@ -2789,6 +2755,8 @@ function api_format_items_activities(&$item, $type = "json")
 		}
 	}
 
+	dba::close($ret);
+
 	if ($type == "xml") {
 		$xml_activities = [];
 		foreach ($activities as $k => $v) {
@@ -3872,16 +3840,13 @@ function api_fr_photoalbum_delete($type)
 	// function for setting the items to "deleted = 1" which ensures that comments, likes etc. are not shown anymore
 	// to the user and the contacts of the users (drop_items() performs the federation of the deletion to other networks
 	foreach ($r as $rr) {
-		$photo_item = q(
-			"SELECT `id` FROM `item` WHERE `uid` = %d AND `resource-id` = '%s' AND `type` = 'photo'",
-			intval(local_user()),
-			dbesc($rr['resource-id'])
-		);
+		$condition = ['uid' => local_user(), 'resource-id' => $rr['resource-id'], 'type' => 'photo'];
+		$photo_item = Item::selectFirstForUser(local_user(), ['id'], $condition);
 
 		if (!DBM::is_result($photo_item)) {
 			throw new InternalServerErrorException("problem with deleting items occured");
 		}
-		Item::deleteForUser(['id' => $photo_item[0]['id']], api_user());
+		Item::deleteForUser(['id' => $photo_item['id']], api_user());
 	}
 
 	// now let's delete all photos from the album
@@ -4162,18 +4127,15 @@ function api_fr_photo_delete($type)
 	// return success of deletion or error message
 	if ($result) {
 		// retrieve the id of the parent element (the photo element)
-		$photo_item = q(
-			"SELECT `id` FROM `item` WHERE `uid` = %d AND `resource-id` = '%s' AND `type` = 'photo'",
-			intval(local_user()),
-			dbesc($photo_id)
-		);
+		$condition = ['uid' => local_user(), 'resource-id' => $photo_id, 'type' => 'photo'];
+		$photo_item = Item::selectFirstForUser(local_user(), ['id'], $condition);
 
 		if (!DBM::is_result($photo_item)) {
 			throw new InternalServerErrorException("problem with deleting items occured");
 		}
 		// function for setting the items to "deleted = 1" which ensures that comments, likes etc. are not shown anymore
 		// to the user and the contacts of the users (drop_items() do all the necessary magic to avoid orphans in database and federate deletion)
-		Item::deleteForUser(['id' => $photo_item[0]['id']], api_user());
+		Item::deleteForUser(['id' => $photo_item['id']], api_user());
 
 		$answer = ['result' => 'deleted', 'message' => 'photo with id `' . $photo_id . '` has been deleted from server.'];
 		return api_format_data("photo_delete", $type, ['$result' => $answer]);
@@ -4661,12 +4623,10 @@ function prepare_photo_data($type, $scale, $photo_id)
 	}
 
 	// retrieve item element for getting activities (like, dislike etc.) related to photo
-	$item = q(
-		"SELECT * FROM `item` WHERE `uid` = %d AND `resource-id` = '%s' AND `type` = 'photo'",
-		intval(local_user()),
-		dbesc($photo_id)
-	);
-	$data['photo']['friendica_activities'] = api_format_items_activities($item[0], $type);
+	$condition = ['uid' => local_user(), 'resource-id' => $photo_id, 'type' => 'photo'];
+	$item = Item::selectFirstForUser(local_user(), ['id'], $condition);
+
+	$data['photo']['friendica_activities'] = api_format_items_activities($item, $type);
 
 	// retrieve comments on photo
 	$condition = ["`parent` = ? AND `uid` = ? AND (`verb` = ? OR `type`='photo')",
@@ -4961,35 +4921,26 @@ function api_in_reply_to($item)
 	$in_reply_to['screen_name'] = null;
 
 	if (($item['thr-parent'] != $item['uri']) && (intval($item['parent']) != intval($item['id']))) {
-		$r = q(
-			"SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' LIMIT 1",
-			intval($item['uid']),
-			dbesc($item['thr-parent'])
-		);
-
-		if (DBM::is_result($r)) {
-			$in_reply_to['status_id'] = intval($r[0]['id']);
+		$parent = Item::selectFirst(['id'], ['uid' => $item['uid'], 'uri' => $item['thr-parent']]);
+		if (DBM::is_result($parent)) {
+			$in_reply_to['status_id'] = intval($parent['id']);
 		} else {
 			$in_reply_to['status_id'] = intval($item['parent']);
 		}
 
 		$in_reply_to['status_id_str'] = (string) intval($in_reply_to['status_id']);
 
-		$r = q(
-			"SELECT `contact`.`nick`, `contact`.`name`, `contact`.`id`, `contact`.`url` FROM `item`
-			STRAIGHT_JOIN `contact` ON `contact`.`id` = `item`.`author-id`
-			WHERE `item`.`id` = %d LIMIT 1",
-			intval($in_reply_to['status_id'])
-		);
+		$fields = ['author-nick', 'author-name', 'author-id', 'author-link'];
+		$parent = Item::selectFirst($fields, ['id' => $in_reply_to['status_id']]);
 
-		if (DBM::is_result($r)) {
-			if ($r[0]['nick'] == "") {
-				$r[0]['nick'] = api_get_nick($r[0]["url"]);
+		if (DBM::is_result($parent)) {
+			if ($parent['author-nick'] == "") {
+				$parent['author-nick'] = api_get_nick($parent['author-link']);
 			}
 
-			$in_reply_to['screen_name'] = (($r[0]['nick']) ? $r[0]['nick'] : $r[0]['name']);
-			$in_reply_to['user_id'] = intval($r[0]['id']);
-			$in_reply_to['user_id_str'] = (string) intval($r[0]['id']);
+			$in_reply_to['screen_name'] = (($parent['author-nick']) ? $parent['author-nick'] : $parent['author-name']);
+			$in_reply_to['user_id'] = intval($parent['author-id']);
+			$in_reply_to['user_id_str'] = (string) intval($parent['author-id']);
 		}
 
 		// There seems to be situation, where both fields are identical:
diff --git a/include/conversation.php b/include/conversation.php
index 97be7e9aa9..6ef2e73aa2 100644
--- a/include/conversation.php
+++ b/include/conversation.php
@@ -633,16 +633,12 @@ function conversation(App $a, $items, $mode, $update, $preview = false, $order =
 				$location_e = $location;
 				$owner_name_e = $owner_name;
 
-				if ($item['item_network'] == "") {
-					$item['item_network'] = $item['network'];
-				}
-
 				$tmp_item = [
 					'template' => $tpl,
 					'id' => (($preview) ? 'P0' : $item['item_id']),
 					'guid' => (($preview) ? 'Q0' : $item['guid']),
-					'network' => $item['item_network'],
-					'network_name' => ContactSelector::networkToName($item['item_network'], $profile_link),
+					'network' => $item['network'],
+					'network_name' => ContactSelector::networkToName($item['network'], $profile_link),
 					'linktitle' => L10n::t('View %s\'s profile @ %s', $profile_name, $item['author-link']),
 					'profile_url' => $profile_link,
 					'item_photo_menu' => item_photo_menu($item),
@@ -688,7 +684,7 @@ function conversation(App $a, $items, $mode, $update, $preview = false, $order =
 				Addon::callHooks('display_item', $arr);
 
 				$threads[$threadsid]['id'] = $item['item_id'];
-				$threads[$threadsid]['network'] = $item['item_network'];
+				$threads[$threadsid]['network'] = $item['network'];
 				$threads[$threadsid]['items'] = [$arr['output']];
 
 			}
diff --git a/include/items.php b/include/items.php
index c54869c3e5..ee514c8fc4 100644
--- a/include/items.php
+++ b/include/items.php
@@ -335,17 +335,14 @@ function drop_item($id) {
 
 	// locate item to be deleted
 
-	$r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
-		intval($id)
-	);
+	$fields = ['id', 'uid', 'contact-id', 'deleted'];
+	$item = Item::selectFirstForUser(local_user(), $fields, ['id' => $id]);
 
-	if (!DBM::is_result($r)) {
+	if (!DBM::is_result($item)) {
 		notice(L10n::t('Item not found.') . EOL);
 		goaway(System::baseUrl() . '/' . $_SESSION['return_url']);
 	}
 
-	$item = $r[0];
-
 	if ($item['deleted']) {
 		return 0;
 	}
@@ -364,7 +361,6 @@ function drop_item($id) {
 	}
 
 	if ((local_user() == $item['uid']) || $contact_id) {
-
 		// Check if we should do HTML-based delete confirmation
 		if ($_REQUEST['confirm']) {
 			// <form> can't take arguments in its "action" parameter
diff --git a/mod/display.php b/mod/display.php
index 13ec9331be..ff1ae6741b 100644
--- a/mod/display.php
+++ b/mod/display.php
@@ -43,6 +43,8 @@ function display_init(App $a)
 
 	$r = false;
 
+	$fields = ['id', 'parent', 'author-id', 'body', 'uid'];
+
 	// If there is only one parameter, then check if this parameter could be a guid
 	if ($a->argc == 2) {
 		$nick = "";
@@ -50,9 +52,7 @@ function display_init(App $a)
 
 		// Does the local user have this item?
 		if (local_user()) {
-			$r = dba::fetch_first("SELECT `id`, `parent`, `author-id`, `body`, `uid`
-				FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
-					AND `guid` = ? AND `uid` = ? LIMIT 1", $a->argv[1], local_user());
+			$r = Item::selectFirstForUser(local_user(), $fields, ['guid' => $a->argv[1], 'uid' => local_user()]);
 			if (DBM::is_result($r)) {
 				$nick = $a->user["nickname"];
 			}
@@ -60,54 +60,44 @@ function display_init(App $a)
 
 		// Is it an item with uid=0?
 		if (!DBM::is_result($r)) {
-			$r = dba::fetch_first("SELECT `id`, `parent`, `author-id`, `body`, `uid`
-				FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
-					AND NOT `private` AND `uid` = 0
-					AND `guid` = ? LIMIT 1", $a->argv[1]);
-		}
-
-		if (!DBM::is_result($r)) {
-			$a->error = 404;
-			notice(L10n::t('Item not found.') . EOL);
-			return;
+			$r = Item::selectFirstForUser(local_user(), $fields, ['guid' => $a->argv[1], 'private' => false, 'uid' => 0]);
 		}
 	} elseif (($a->argc == 3) && ($nick == 'feed-item')) {
-		$r = dba::fetch_first("SELECT `id`, `parent`, `author-id`, `body`, `uid`
-			FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
-				AND NOT `private` AND `uid` = 0
-				AND `id` = ? LIMIT 1", $a->argv[2]);
+		$r = Item::selectFirstForUser(local_user(), $fields, ['id' => $a->argv[2], 'private' => false, 'uid' => 0]);
 	}
 
-	if (DBM::is_result($r)) {
-		if (strstr($_SERVER['HTTP_ACCEPT'], 'application/atom+xml')) {
-			logger('Directly serving XML for id '.$r["id"], LOGGER_DEBUG);
-			displayShowFeed($r["id"], false);
-		}
+	if (!DBM::is_result($r) || $r['deleted']) {
+		$a->error = 404;
+		notice(L10n::t('Item not found.') . EOL);
+		return;
+	}
 
-		if ($r["id"] != $r["parent"]) {
-			$r = dba::fetch_first("SELECT `id`, `author-id`, `body`, `uid` FROM `item`
-				WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
-					AND `id` = ?", $r["parent"]);
-		}
+	if (strstr($_SERVER['HTTP_ACCEPT'], 'application/atom+xml')) {
+		logger('Directly serving XML for id '.$r["id"], LOGGER_DEBUG);
+		displayShowFeed($r["id"], false);
+	}
 
-		$profiledata = display_fetchauthor($a, $r);
+	if ($r["id"] != $r["parent"]) {
+		$r = Item::selectFirstForUser(local_user(), $fields, ['id' => $r["parent"]]);
+	}
 
-		if (strstr(normalise_link($profiledata["url"]), normalise_link(System::baseUrl()))) {
-			$nickname = str_replace(normalise_link(System::baseUrl())."/profile/", "", normalise_link($profiledata["url"]));
+	$profiledata = display_fetchauthor($a, $r);
 
-			if (($nickname != $a->user["nickname"])) {
-				$r = dba::fetch_first("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
-					INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
-					WHERE `user`.`nickname` = ? AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
-					$nickname
-				);
-				if (DBM::is_result($r)) {
-					$profiledata = $r;
-				}
-				$profiledata["network"] = NETWORK_DFRN;
-			} else {
-				$profiledata = [];
+	if (strstr(normalise_link($profiledata["url"]), normalise_link(System::baseUrl()))) {
+		$nickname = str_replace(normalise_link(System::baseUrl())."/profile/", "", normalise_link($profiledata["url"]));
+
+		if (($nickname != $a->user["nickname"])) {
+			$r = dba::fetch_first("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
+				INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
+				WHERE `user`.`nickname` = ? AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
+				$nickname
+			);
+			if (DBM::is_result($r)) {
+				$profiledata = $r;
 			}
+			$profiledata["network"] = NETWORK_DFRN;
+		} else {
+			$profiledata = [];
 		}
 	}
 
diff --git a/mod/editpost.php b/mod/editpost.php
index aa2c296845..dc98e93d91 100644
--- a/mod/editpost.php
+++ b/mod/editpost.php
@@ -8,6 +8,7 @@ use Friendica\Core\Addon;
 use Friendica\Core\Config;
 use Friendica\Core\L10n;
 use Friendica\Core\System;
+use Friendica\Model\Item;
 use Friendica\Database\DBM;
 
 function editpost_content(App $a) {
@@ -26,11 +27,9 @@ function editpost_content(App $a) {
 		return;
 	}
 
-	$itm = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
-		intval($post_id),
-		intval(local_user())
-	);
-
+	$fields = ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
+		'type', 'body', 'title', 'file'];
+	$itm = Item::selectFirstForUser(local_user(), $fields, ['id' => $post_id, 'uid' => local_user()]);
 	if (! DBM::is_result($itm)) {
 		notice(L10n::t('Item not found') . EOL);
 		return;
@@ -124,8 +123,8 @@ function editpost_content(App $a) {
 		'$shortnoloc' => L10n::t('clear location'),
 		'$wait' => L10n::t('Please wait'),
 		'$permset' => L10n::t('Permission settings'),
-		'$ptyp' => $itm[0]['type'],
-		'$content' => undo_post_tagging($itm[0]['body']),
+		'$ptyp' => $itm['type'],
+		'$content' => undo_post_tagging($itm['body']),
 		'$post_id' => $post_id,
 		'$baseurl' => System::baseUrl(),
 		'$defloc' => $a->user['default-location'],
@@ -134,9 +133,9 @@ function editpost_content(App $a) {
 		'$emailcc' => L10n::t('CC: email addresses'),
 		'$public' => L10n::t('Public post'),
 		'$jotnets' => $jotnets,
-		'$title' => htmlspecialchars($itm[0]['title']),
+		'$title' => htmlspecialchars($itm['title']),
 		'$placeholdertitle' => L10n::t('Set title'),
-		'$category' => file_tag_file_to_list($itm[0]['file'], 'category'),
+		'$category' => file_tag_file_to_list($itm['file'], 'category'),
 		'$placeholdercategory' => (Feature::isEnabled(local_user(),'categories') ? L10n::t("Categories \x28comma-separated list\x29") : ''),
 		'$emtitle' => L10n::t('Example: bob@example.com, mary@example.com'),
 		'$lockstate' => $lockstate,
diff --git a/mod/fetch.php b/mod/fetch.php
index 6892990c24..da616ad5bb 100644
--- a/mod/fetch.php
+++ b/mod/fetch.php
@@ -7,7 +7,10 @@ use Friendica\App;
 use Friendica\Core\L10n;
 use Friendica\Core\System;
 use Friendica\Protocol\Diaspora;
+use Friendica\Model\Item;
+use Friendica\Model\User;
 use Friendica\Util\XML;
+use Friendica\Database\DBM;
 
 function fetch_init(App $a)
 {
@@ -20,24 +23,14 @@ function fetch_init(App $a)
 	$guid = $a->argv[2];
 
 	// Fetch the item
-	$item = q(
-		"SELECT `uid`, `title`, `body`, `guid`, `contact-id`, `private`, `created`, `app`, `location`, `coord`
-			FROM `item` WHERE `wall` AND NOT `private` AND `guid` = '%s' AND `network` IN ('%s', '%s') AND `id` = `parent` LIMIT 1",
-		dbesc($guid),
-		NETWORK_DFRN,
-		NETWORK_DIASPORA
-	);
-	if (!$item) {
-		$r = q(
-			"SELECT `author-link`
-			FROM `item` WHERE `uid` = 0 AND `guid` = '%s' AND `network` IN ('%s', '%s') AND `id` = `parent` LIMIT 1",
-			dbesc($guid),
-			NETWORK_DFRN,
-			NETWORK_DIASPORA
-		);
-
-		if ($r) {
-			$parts = parse_url($r[0]["author-link"]);
+	$fields = ['uid', 'title', 'body', 'guid', 'contact-id', 'private', 'created', 'app', 'location', 'coord', 'network'];
+	$condition = ['wall' => true, 'private' => false, 'guid' => $guid, 'network' => [NETWORK_DFRN, NETWORK_DIASPORA]];
+	$item = Item::selectFirst($fields, $condition);
+	if (!DBM::is_result($item)) {
+		$condition = ['guid' => $guid, 'network' => [NETWORK_DFRN, NETWORK_DIASPORA]];
+		$item = Item::selectFirst(['author-link'], $condition);
+		if (DBM::is_result($item)) {
+			$parts = parse_url($item["author-link"]);
 			$host = $parts["scheme"]."://".$parts["host"];
 
 			if (normalise_link($host) != normalise_link(System::baseUrl())) {
@@ -54,20 +47,13 @@ function fetch_init(App $a)
 	}
 
 	// Fetch some data from the author (We could combine both queries - but I think this is more readable)
-	$r = q(
-		"SELECT `user`.`prvkey`, `contact`.`addr`, `user`.`nickname`, `contact`.`nick` FROM `user`
-		INNER JOIN `contact` ON `contact`.`uid` = `user`.`uid` AND `contact`.`self`
-		WHERE `user`.`uid` = %d",
-		intval($item[0]["uid"])
-	);
-
-	if (!$r) {
+	$user = User::getOwnerDataById($item["uid"]);
+	if (!$user) {
 		header($_SERVER["SERVER_PROTOCOL"].' 404 '.L10n::t('Not Found'));
 		killme();
 	}
-	$user = $r[0];
 
-	$status = Diaspora::buildStatus($item[0], $user);
+	$status = Diaspora::buildStatus($item, $user);
 	$xml = Diaspora::buildPostXml($status["type"], $status["message"]);
 
 	// Send the envelope
diff --git a/mod/photos.php b/mod/photos.php
index f6540c2608..9cd3482746 100644
--- a/mod/photos.php
+++ b/mod/photos.php
@@ -19,6 +19,7 @@ use Friendica\Model\Group;
 use Friendica\Model\Item;
 use Friendica\Model\Photo;
 use Friendica\Model\Profile;
+use Friendica\Model\User;
 use Friendica\Network\Probe;
 use Friendica\Object\Image;
 use Friendica\Protocol\DFRN;
@@ -175,19 +176,14 @@ function photos_post(App $a)
 		killme();
 	}
 
-	$r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid`
-		WHERE `user`.`uid` = %d AND `self` = 1 LIMIT 1",
-		intval($page_owner_uid)
-	);
+	$owner_record = User::getOwnerDataById($page_owner_uid);
 
-	if (!DBM::is_result($r)) {
+	if (!$owner_record) {
 		notice(L10n::t('Contact information unavailable') . EOL);
 		logger('photos_post: unable to locate contact record for page owner. uid=' . $page_owner_uid);
 		killme();
 	}
 
-	$owner_record = $r[0];
-
 	if ($a->argc > 3 && $a->argv[2] === 'album') {
 		$album = hex2bin($a->argv[3]);
 
@@ -487,14 +483,11 @@ function photos_post(App $a)
 		}
 
 		if ($item_id) {
-			$r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
-				intval($item_id),
-				intval($page_owner_uid)
-			);
+			$item = Item::selectFirst(['tag', 'inform'], ['id' => $item_id, 'uid' => $page_owner_uid]);
 		}
-		if (DBM::is_result($r)) {
-			$old_tag    = $r[0]['tag'];
-			$old_inform = $r[0]['inform'];
+		if (DBM::is_result($item)) {
+			$old_tag    = $item['tag'];
+			$old_inform = $item['inform'];
 		}
 
 		if (strlen($rawtags)) {
diff --git a/mod/tagrm.php b/mod/tagrm.php
index b9991d68da..dbe6f10877 100644
--- a/mod/tagrm.php
+++ b/mod/tagrm.php
@@ -10,29 +10,25 @@ use Friendica\Core\System;
 use Friendica\Database\DBM;
 use Friendica\Model\Item;
 
-function tagrm_post(App $a) {
-
+function tagrm_post(App $a)
+{
 	if (!local_user()) {
 		goaway(System::baseUrl() . '/' . $_SESSION['photo_return']);
 	}
 
-	if ((x($_POST,'submit')) && ($_POST['submit'] === L10n::t('Cancel'))) {
+	if (x($_POST,'submit') && ($_POST['submit'] === L10n::t('Cancel'))) {
 		goaway(System::baseUrl() . '/' . $_SESSION['photo_return']);
 	}
 
-	$tag =  ((x($_POST,'tag'))  ? hex2bin(notags(trim($_POST['tag']))) : '');
-	$item = ((x($_POST,'item')) ? intval($_POST['item'])               : 0 );
+	$tag =  (x($_POST,'tag')  ? hex2bin(notags(trim($_POST['tag']))) : '');
+	$item_id = (x($_POST,'item') ? intval($_POST['item'])               : 0);
 
-	$r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
-		intval($item),
-		intval(local_user())
-	);
-
-	if (!DBM::is_result($r)) {
+	$item = Item::selectFirst(['tag'], ['id' => $item_id, 'uid' => local_user()]);
+	if (!DBM::is_result($item)) {
 		goaway(System::baseUrl() . '/' . $_SESSION['photo_return']);
 	}
 
-	$arr = explode(',', $r[0]['tag']);
+	$arr = explode(',', $item['tag']);
 	for ($x = 0; $x < count($arr); $x ++) {
 		if ($arr[$x] === $tag) {
 			unset($arr[$x]);
@@ -42,7 +38,7 @@ function tagrm_post(App $a) {
 
 	$tag_str = implode(',',$arr);
 
-	Item::update(['tag' => $tag_str], ['id' => $item]);
+	Item::update(['tag' => $tag_str], ['id' => $item_id]);
 
 	info(L10n::t('Tag removed') . EOL );
 	goaway(System::baseUrl() . '/' . $_SESSION['photo_return']);
@@ -52,8 +48,8 @@ function tagrm_post(App $a) {
 
 
 
-function tagrm_content(App $a) {
-
+function tagrm_content(App $a)
+{
 	$o = '';
 
 	if (!local_user()) {
@@ -61,22 +57,18 @@ function tagrm_content(App $a) {
 		// NOTREACHED
 	}
 
-	$item = (($a->argc > 1) ? intval($a->argv[1]) : 0);
-	if (!$item) {
+	$item_id = (($a->argc > 1) ? intval($a->argv[1]) : 0);
+	if (!$item_id) {
 		goaway(System::baseUrl() . '/' . $_SESSION['photo_return']);
 		// NOTREACHED
 	}
 
-	$r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
-		intval($item),
-		intval(local_user())
-	);
-
-	if (!DBM::is_result($r)) {
+	$item = Item::selectFirst(['tag'], ['id' => $item_id, 'uid' => local_user()]);
+	if (!DBM::is_result($item)) {
 		goaway(System::baseUrl() . '/' . $_SESSION['photo_return']);
 	}
 
-	$arr = explode(',', $r[0]['tag']);
+	$arr = explode(',', $item['tag']);
 
 	if (!count($arr)) {
 		goaway(System::baseUrl() . '/' . $_SESSION['photo_return']);
@@ -87,7 +79,7 @@ function tagrm_content(App $a) {
 	$o .= '<p id="tag-remove-desc">' . L10n::t('Select a tag to remove: ') . '</p>';
 
 	$o .= '<form id="tagrm" action="tagrm" method="post" >';
-	$o .= '<input type="hidden" name="item" value="' . $item . '" />';
+	$o .= '<input type="hidden" name="item" value="' . $item_id . '" />';
 	$o .= '<ul>';
 
 	foreach ($arr as $x) {
@@ -100,5 +92,4 @@ function tagrm_content(App $a) {
 	$o .= '</form>';
 
 	return $o;
-
 }
diff --git a/mod/viewsrc.php b/mod/viewsrc.php
index d2f0d01a07..4b511eab13 100644
--- a/mod/viewsrc.php
+++ b/mod/viewsrc.php
@@ -5,38 +5,33 @@
 use Friendica\App;
 use Friendica\Core\L10n;
 use Friendica\Database\DBM;
+use Friendica\Model\Item;
 
-function viewsrc_content(App $a) {
-
-	if (! local_user()) {
+function viewsrc_content(App $a)
+{
+	if (!local_user()) {
 		notice(L10n::t('Access denied.') . EOL);
 		return;
 	}
 
-	$o = ''; 
+	$o = '';
 	$item_id = (($a->argc > 1) ? intval($a->argv[1]) : 0);
 
-	if(! $item_id) {
+	if (!$item_id) {
 		$a->error = 404;
 		notice(L10n::t('Item not found.') . EOL);
 		return;
 	}
 
-	$r = q("SELECT `item`.`body` FROM `item`
-		WHERE `item`.`uid` = %d AND `item`.`visible` = 1 AND `item`.`deleted` = 0
-		and `item`.`moderated` = 0
-		AND `item`.`id` = '%s' LIMIT 1",
-		intval(local_user()),
-		dbesc($item_id)
-	);
+	$item = Item::selectFirst(['body'], ['uid' => local_user(), 'id' => $item_id]);
 
-	if (DBM::is_result($r))
-		if(is_ajax()) {
-			echo str_replace("\n",'<br />',$r[0]['body']);
+	if (DBM::is_result($item)) {
+		if (is_ajax()) {
+			echo str_replace("\n",'<br />',$item['body']);
 			killme();
 		} else {
-			$o .= str_replace("\n",'<br />',$r[0]['body']);
+			$o .= str_replace("\n",'<br />',$item['body']);
 		}
+	}
 	return $o;
 }
-
diff --git a/src/Model/Item.php b/src/Model/Item.php
index dcf944cc46..adb0baa688 100644
--- a/src/Model/Item.php
+++ b/src/Model/Item.php
@@ -38,8 +38,8 @@ class Item extends BaseObject
 			'commented', 'created', 'edited', 'received', 'verb', 'object-type', 'postopts', 'plink',
 			'wall', 'private', 'starred', 'origin', 'title', 'body', 'file', 'attach',
 			'content-warning', 'location', 'coord', 'app', 'rendered-hash', 'rendered-html', 'object',
-			'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'item_id', 'item_network',
-			'author-id', 'author-link', 'author-name', 'author-avatar',
+			'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'item_id',
+			'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
 			'owner-id', 'owner-link', 'owner-name', 'owner-avatar',
 			'contact-id', 'contact-link', 'contact-name', 'contact-avatar',
 			'network', 'url', 'name', 'writable', 'self', 'cid', 'alias',
@@ -250,17 +250,19 @@ class Item extends BaseObject
 			'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark',
 			'unseen', 'deleted', 'origin', 'forum_mode', 'mention',
 			'rendered-hash', 'rendered-html', 'global', 'shadow', 'content-warning',
-			'id' => 'item_id', 'network' => 'item_network'];
+			'id' => 'item_id', 'network'];
 
-		$fields['author'] = ['url' => 'author-link', 'name' => 'author-name', 'thumb' => 'author-avatar'];
+		$fields['author'] = ['url' => 'author-link', 'name' => 'author-name',
+			'thumb' => 'author-avatar', 'nick' => 'author-nick', 'network' => 'author-network'];
 
-		$fields['owner'] = ['url' => 'owner-link', 'name' => 'owner-name', 'thumb' => 'owner-avatar'];
+		$fields['owner'] = ['url' => 'owner-link', 'name' => 'owner-name',
+			'thumb' => 'owner-avatar', 'nick' => 'owner-nick', 'network' => 'owner-network'];
 
 		$fields['contact'] = ['url' => 'contact-link', 'name' => 'contact-name', 'thumb' => 'contact-avatar',
 			'network', 'url', 'name', 'writable', 'self', 'id' => 'cid', 'alias', 'uid' => 'contact-uid',
-			'photo', 'name-date', 'uri-date', 'avatar-date', 'thumb', 'dfrn-id'];
+			'photo', 'name-date', 'uri-date', 'avatar-date', 'thumb', 'dfrn-id', 'network' => 'contact-network'];
 
-		$fields['parent-item'] = ['guid' => 'parent-guid'];
+		$fields['parent-item'] = ['guid' => 'parent-guid', 'network' => 'parent-network'];
 
 		$fields['parent-item-author'] = ['url' => 'parent-author-link', 'name' => 'parent-author-name'];
 
diff --git a/src/Model/User.php b/src/Model/User.php
index 39c544c3a8..76769e14c7 100644
--- a/src/Model/User.php
+++ b/src/Model/User.php
@@ -65,6 +65,21 @@ class User
 		return $r;
 	}
 
+	/**
+	 * @brief Get owner data by nick name
+	 *
+	 * @param int $nick
+	 * @return boolean|array
+	 */
+	public static function getOwnerDataByNick($nick)
+	{
+		$user = dba::selectFirst('user', ['uid'], ['nickname' => $nick]);
+		if (!DBM::is_result($user)) {
+			return false;
+		}
+		return self::getOwnerDataById($user['uid']);
+	}
+
 	/**
 	 * @brief Returns the default group for a given user and network
 	 *
diff --git a/src/Object/Post.php b/src/Object/Post.php
index a66e48a380..bceee38444 100644
--- a/src/Object/Post.php
+++ b/src/Object/Post.php
@@ -326,17 +326,17 @@ class Post extends BaseObject
 		$owner_name_e = $this->getOwnerName();
 
 		// Disable features that aren't available in several networks
-		if (!in_array($item["item_network"], [NETWORK_DFRN, NETWORK_DIASPORA]) && isset($buttons["dislike"])) {
+		if (!in_array($item["network"], [NETWORK_DFRN, NETWORK_DIASPORA]) && isset($buttons["dislike"])) {
 			unset($buttons["dislike"]);
 			$isevent = false;
 			$tagger = '';
 		}
 
-		if (($item["item_network"] == NETWORK_FEED) && isset($buttons["like"])) {
+		if (($item["network"] == NETWORK_FEED) && isset($buttons["like"])) {
 			unset($buttons["like"]);
 		}
 
-		if (($item["item_network"] == NETWORK_MAIL) && isset($buttons["like"])) {
+		if (($item["network"] == NETWORK_MAIL) && isset($buttons["like"])) {
 			unset($buttons["like"]);
 		}
 
@@ -401,8 +401,8 @@ class Post extends BaseObject
 			'wait'            => L10n::t('Please wait'),
 			'thread_level'    => $thread_level,
 			'edited'          => $edited,
-			'network'         => $item["item_network"],
-			'network_name'    => ContactSelector::networkToName($item['item_network'], $profile_link),
+			'network'         => $item["network"],
+			'network_name'    => ContactSelector::networkToName($item['network'], $profile_link),
 			'received'        => $item['received'],
 			'commented'       => $item['commented'],
 			'created_date'    => $item['created'],
diff --git a/src/Protocol/OStatus.php b/src/Protocol/OStatus.php
index ce9e6642ed..36ed3580e7 100644
--- a/src/Protocol/OStatus.php
+++ b/src/Protocol/OStatus.php
@@ -15,6 +15,7 @@ use Friendica\Model\Contact;
 use Friendica\Model\Conversation;
 use Friendica\Model\GContact;
 use Friendica\Model\Item;
+use Friendica\Model\User;
 use Friendica\Network\Probe;
 use Friendica\Object\Image;
 use Friendica\Util\DateTimeFormat;
@@ -1619,22 +1620,14 @@ class OStatus
 
 		$title = self::entryHeader($doc, $entry, $owner, $item, $toplevel);
 
-		$r = q(
-			"SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' AND NOT `private` AND `network` IN ('%s', '%s', '%s') LIMIT 1",
-			intval($owner["uid"]),
-			dbesc($repeated_guid),
-			dbesc(NETWORK_DFRN),
-			dbesc(NETWORK_DIASPORA),
-			dbesc(NETWORK_OSTATUS)
-		);
-		if (DBM::is_result($r)) {
-			$repeated_item = $r[0];
-		} else {
+		$condition = ['uid' => $owner["uid"], 'guid' => $repeated_guid, 'private' => false,
+			'network' => [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS]];
+		$repeated_item = Item::selectFirst([], $condition);
+		if (!DBM::is_result($repeated_item)) {
 			return false;
 		}
-		$contact = self::contactEntry($repeated_item['author-link'], $owner);
 
-		$parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
+		$contact = self::contactEntry($repeated_item['author-link'], $owner);
 
 		$title = $owner["nick"]." repeated a notice by ".$contact["nick"];
 
@@ -1695,16 +1688,11 @@ class OStatus
 
 		$as_object = $doc->createElement("activity:object");
 
-		$parent = q(
-			"SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d",
-			dbesc($item["thr-parent"]),
-			intval($item["uid"])
-		);
-		$parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
+		$parent = Item::selectFirst([], ['uri' => $item["thr-parent"], 'uid' => $item["uid"]]);
 
-		XML::addElement($doc, $as_object, "activity:object-type", self::constructObjecttype($parent[0]));
+		XML::addElement($doc, $as_object, "activity:object-type", self::constructObjecttype($parent));
 
-		self::entryContent($doc, $as_object, $parent[0], $owner, "New entry");
+		self::entryContent($doc, $as_object, $parent, $owner, "New entry");
 
 		$entry->appendChild($as_object);
 
@@ -1952,22 +1940,19 @@ class OStatus
 		$mentioned = [];
 
 		if (($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
-			$parent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `id` = %d", intval($item["parent"]));
+			$parent = item::selectFirst(['guid', 'author-link', 'owner-link'], ['id' => $item["parent"]]);
 			$parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
 
-			$thrparent = q(
-				"SELECT `guid`, `author-link`, `owner-link`, `plink` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
-				intval($owner["uid"]),
-				dbesc($parent_item)
-			);
-			if ($thrparent) {
-				$mentioned[$thrparent[0]["author-link"]] = $thrparent[0]["author-link"];
-				$mentioned[$thrparent[0]["owner-link"]] = $thrparent[0]["owner-link"];
-				$parent_plink = $thrparent[0]["plink"];
+			$thrparent = item::selectFirst(['guid', 'author-link', 'owner-link', 'plink'], ['uid' => $owner["uid"], 'uri' => $parent_item]);
+
+			if (DBM::is_result($thrparent)) {
+				$mentioned[$thrparent["author-link"]] = $thrparent["author-link"];
+				$mentioned[$thrparent["owner-link"]] = $thrparent["owner-link"];
+				$parent_plink = $thrparent["plink"];
 			} else {
-				$mentioned[$parent[0]["author-link"]] = $parent[0]["author-link"];
-				$mentioned[$parent[0]["owner-link"]] = $parent[0]["owner-link"];
-				$parent_plink = System::baseUrl()."/display/".$parent[0]["guid"];
+				$mentioned[$parent["author-link"]] = $parent["author-link"];
+				$mentioned[$parent["owner-link"]] = $parent["owner-link"];
+				$parent_plink = System::baseUrl()."/display/".$parent["guid"];
 			}
 
 			$attributes = [
@@ -2130,13 +2115,8 @@ class OStatus
 			return $result['feed'];
 		}
 
-		$owner = dba::fetch_first(
-			"SELECT `contact`.*, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`, `user`.`account-type`
-				FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
-				WHERE `contact`.`self` AND `user`.`nickname` = ? LIMIT 1",
-			$owner_nick
-		);
-		if (!DBM::is_result($owner)) {
+		$owner = User::getOwnerDataByNick($owner_nick);
+		if (!$owner) {
 			return;
 		}
 
@@ -2147,37 +2127,28 @@ class OStatus
 		$check_date = DateTimeFormat::utc($last_update);
 		$authorid = Contact::getIdForURL($owner["url"], 0, true);
 
-		$sql_extra = '';
+		$condition = ["`uid` = ? AND `created` > ? AND NOT `deleted`
+			AND NOT `private` AND `visible` AND `wall` AND `parent-network` IN (?, ?)",
+			$owner["uid"], $check_date, NETWORK_OSTATUS, NETWORK_DFRN];
+
 		if ($filter === 'posts') {
-			$sql_extra .= ' AND `item`.`id` = `item`.`parent` ';
+			$condition[0] .= " AND `id` = `parent`";
 		}
 
 		if ($filter === 'comments') {
-			$sql_extra .= sprintf(" AND `item`.`object-type` = '%s' ", dbesc(ACTIVITY_OBJ_COMMENT));
+			$condition[0] .= " AND `object-type` = ? ";
+			$condition[] = ACTIVITY_OBJ_COMMENT;
 		}
 
 		if ($owner['account-type'] != ACCOUNT_TYPE_COMMUNITY) {
-			$sql_extra .= sprintf(" AND `item`.`contact-id` = %d AND `item`.`author-id` = %d ", intval($owner["id"]), intval($authorid));
+			$condition[0] .= " AND `contact-id` = ? AND `author-id` = ?";
+			$condition[] = $owner["id"];
+			$condition[] = $authorid;
 		}
 
-		$items = q(
-			"SELECT `item`.*, `item`.`id` AS `item_id` FROM `item` USE INDEX (`uid_contactid_created`)
-				STRAIGHT_JOIN `thread` ON `thread`.`iid` = `item`.`parent`
-				WHERE `item`.`uid` = %d
-				AND `item`.`created` > '%s'
-				AND NOT `item`.`deleted`
-				AND NOT `item`.`private`
-				AND `item`.`visible`
-				AND `item`.`wall`
-				AND `thread`.`network` IN ('%s', '%s')
-				$sql_extra
-				ORDER BY `item`.`created` DESC LIMIT %d",
-			intval($owner["uid"]),
-			dbesc($check_date),
-			dbesc(NETWORK_OSTATUS),
-			dbesc(NETWORK_DFRN),
-			intval($max_items)
-		);
+		$params = ['order' => ['created' => true], 'limit' => $max_items];
+		$ret = Item::select([], $condition, $params);
+		$items = dba::inArray($ret);
 
 		$doc = new DOMDocument('1.0', 'utf-8');
 		$doc->formatOutput = true;