Alexander Andreev
3f80f3fbb7
Introduce a new 'topics' entity with two-level nesting and a many-to-many link to photos. Add topic management in admin and inline AJAX attach/detach controls on photo cards so editors can assign or remove topics without reloading the page.
21 lines
1.0 KiB
SQL
21 lines
1.0 KiB
SQL
CREATE TABLE IF NOT EXISTS topics (
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id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
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parent_id BIGINT UNSIGNED NULL,
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name VARCHAR(191) NOT NULL,
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sort_order INT NOT NULL DEFAULT 1000,
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created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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CONSTRAINT fk_topics_parent FOREIGN KEY (parent_id) REFERENCES topics(id) ON DELETE CASCADE,
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KEY idx_topics_parent_sort (parent_id, sort_order, id)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
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CREATE TABLE IF NOT EXISTS photo_topics (
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photo_id BIGINT UNSIGNED NOT NULL,
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topic_id BIGINT UNSIGNED NOT NULL,
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created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY (photo_id, topic_id),
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CONSTRAINT fk_photo_topics_photo FOREIGN KEY (photo_id) REFERENCES photos(id) ON DELETE CASCADE,
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CONSTRAINT fk_photo_topics_topic FOREIGN KEY (topic_id) REFERENCES topics(id) ON DELETE CASCADE,
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KEY idx_photo_topics_topic (topic_id)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
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