"participation" is removed since it is unused

database.sql

@@ -970,22 +970,6 @@ CREATE TABLE IF NOT EXISTS `parsed_url` (
 	 INDEX `created` (`created`)
 ) DEFAULT COLLATE utf8mb4_general_ci COMMENT='cache for \'parse_url\' queries';
 
---
--- TABLE participation
---
-CREATE TABLE IF NOT EXISTS `participation` (
-	`iid` int unsigned NOT NULL COMMENT '',
-	`server` varchar(60) NOT NULL COMMENT '',
-	`cid` int unsigned NOT NULL COMMENT '',
-	`fid` int unsigned NOT NULL COMMENT '',
-	 PRIMARY KEY(`iid`,`server`),
-	 INDEX `cid` (`cid`),
-	 INDEX `fid` (`fid`),
-	FOREIGN KEY (`iid`) REFERENCES `item` (`id`) ON UPDATE RESTRICT ON DELETE CASCADE,
-	FOREIGN KEY (`cid`) REFERENCES `contact` (`id`) ON UPDATE RESTRICT ON DELETE CASCADE,
-	FOREIGN KEY (`fid`) REFERENCES `fcontact` (`id`) ON UPDATE RESTRICT ON DELETE CASCADE
-) DEFAULT COLLATE utf8mb4_general_ci COMMENT='Storage for participation messages from Diaspora';
-
 --
 -- TABLE pconfig
 --

doc/database.md

@@ -32,7 +32,6 @@ Database Tables
 | [notify-threads](help/database/db_notify-threads)    |                                                  |
 | [oembed](help/database/db_oembed)                    | cache for OEmbed queries                         |
 | [parsed_url](help/database/db_parsed_url)            | cache for "parse_url" queries                    |
-| [participation](help/database/db_participation)      | Storage for participation messages from Diaspora |
 | [pconfig](help/database/db_pconfig)                  | personal (per user) configuration storage        |
 | [photo](help/database/db_photo)                      | photo storage                                    |
 | [poll](help/database/db_poll)                        | data for polls                                   |

doc/database/db_particiation.md

@@ -1,10 +0,0 @@
-Table participation
-===================
-
-| Field       | Description      | Type             | Null | Key | Default             | Extra |
-|-------------|------------------|------------------|------|-----|---------------------|-------|
-| iid         | item id          | int(10) unsigned | NO   | PRI |                     |       |
-| server      | Name of server   | varchar(60)      | NO   | PRI |                     |       |
-| cid         | contact id       | int(10) unsigned | NO   |     |                     |       |
-
-Return to [database documentation](help/database)

src/Database/DBStructure.php

@@ -79,7 +79,7 @@ class DBStructure
 		}
 
 		$old_tables = ['fserver', 'gcign', 'gcontact', 'gcontact-relation', 'gfollower' ,'glink', 'item-delivery-data',
-			'item-activity', 'item-content', 'item_id', 'poll', 'poll_result', 'queue', 'retriever_rule',
+			'item-activity', 'item-content', 'item_id', 'participation', 'poll', 'poll_result', 'queue', 'retriever_rule',
 			'sign', 'spam', 'term', 'user-item'];
 
 		$tables = DBA::selectToArray(['INFORMATION_SCHEMA' => 'TABLES'], ['TABLE_NAME'],

static/dbstructure.config.php

@@ -1031,20 +1031,6 @@ return [
 			"created" => ["created"],
 		]
 	],
-	"participation" => [
-		"comment" => "Storage for participation messages from Diaspora",
-		"fields" => [
-			"iid" => ["type" => "int unsigned", "not null" => "1", "primary" => "1", "foreign" => ["item" => "id"], "comment" => ""],
-			"server" => ["type" => "varchar(60)", "not null" => "1", "primary" => "1", "comment" => ""],
-			"cid" => ["type" => "int unsigned", "not null" => "1", "foreign" => ["contact" => "id"], "comment" => ""],
-			"fid" => ["type" => "int unsigned", "not null" => "1", "foreign" => ["fcontact" => "id"], "comment" => ""],
-		],
-		"indexes" => [
-			"PRIMARY" => ["iid", "server"],
-			"cid" => ["cid"],
-			"fid" => ["fid"]
-		]
-	],
 	"pconfig" => [
 		"comment" => "personal (per user) configuration storage",
 		"fields" => [

update.php

@@ -490,10 +490,6 @@ function pre_update_1364()
 		return Update::FAILED;
 	}
 
-	if (!DBA::e("DELETE FROM `participation` WHERE NOT `cid` IN (SELECT `id` FROM `contact`)")) {
-		return Update::FAILED;
-	}
-
 	if (!DBA::e("DELETE FROM `profile_check` WHERE NOT `cid` IN (SELECT `id` FROM `contact`)")) {
 		return Update::FAILED;
 	}
@@ -502,10 +498,6 @@ function pre_update_1364()
 		return Update::FAILED;
 	}
 
-	if (!DBA::e("DELETE FROM `participation` WHERE NOT `fid` IN (SELECT `id` FROM `fcontact`)")) {
-		return Update::FAILED;
-	}
-
 	if (!DBA::e("DELETE FROM `group_member` WHERE NOT `gid` IN (SELECT `id` FROM `group`)")) {
 		return Update::FAILED;
 	}
@@ -514,10 +506,6 @@ function pre_update_1364()
 		return Update::FAILED;
 	}
 
-	if (!DBA::e("DELETE FROM `participation` WHERE NOT `iid` IN (SELECT `id` FROM `item`)")) {
-		return Update::FAILED;
-	}
-
 	if (DBStructure::existsTable('user-item') && !DBA::e("DELETE FROM `user-item` WHERE NOT `iid` IN (SELECT `id` FROM `item`)")) {
 		return Update::FAILED;
 	}