rvr-nextgen/database/migrations/structure/20230412_1955_communities.sql

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CREATE TABLE `communities` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`name` varchar(255) NOT NULL,
`currency` varchar(3) NOT NULL,
`created` timestamp NOT NULL DEFAULT current_timestamp(),
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PRIMARY KEY (`id`)
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) ENGINE = InnoDB DEFAULT CHARSET = utf8mb4;
CREATE TABLE `community_members` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`community_id` int(10) unsigned NOT NULL,
`user_id` int(10) unsigned DEFAULT NULL,
`owner` tinyint(1) NOT NULL DEFAULT 0,
PRIMARY KEY (`id`),
UNIQUE KEY `unique_user_for_community` (`community_id`, `user_id`),
KEY `community_id` (`community_id`),
KEY `user_id` (`user_id`),
CONSTRAINT `community_members_community_id` FOREIGN KEY (`community_id`) REFERENCES `communities` (`id`),
CONSTRAINT `community_members_user_id` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`)
) ENGINE = InnoDB DEFAULT CHARSET = utf8mb4;