90 lines
4.3 KiB
SQL
90 lines
4.3 KiB
SQL
-- MijnBesluit - foto's bij personen en berichten
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--
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-- Tot nu toe kon een bestand alleen bij een kluisitem horen. Er komen twee koppelingen bij,
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-- plus een vinkje voor de profielfoto:
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--
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-- subject_person_id : bij welke persoon deze foto hoort. Let op het verschil met
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-- owner_person_id: dat is wie de foto bewaart, dit is wie erop staat.
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-- message_id : bij welk bericht deze foto hoort.
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-- is_profile_photo : dit is de foto die bij de persoon op de kaart komt te staan.
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-- Er is er hoogstens een per persoon; de applicatie bewaakt dat.
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--
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-- Draaien met:
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-- mysql -u root -p mijnbesluit < db\07_fotos.sql
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--
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-- Opnieuw draaien mag: er gebeurt dan niets.
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USE `mijnbesluit`;
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-- ---------------------------------------------------------------- subject_person_id
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SET @bestaat := (
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SELECT COUNT(*) FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'vault_files' AND COLUMN_NAME = 'subject_person_id');
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SET @sql := IF(@bestaat = 0,
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'ALTER TABLE `vault_files` ADD COLUMN `subject_person_id` BIGINT NULL AFTER `vault_item_id`',
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'SELECT "subject_person_id bestaat al" AS melding');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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-- ---------------------------------------------------------------- message_id
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SET @bestaat := (
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SELECT COUNT(*) FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'vault_files' AND COLUMN_NAME = 'message_id');
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SET @sql := IF(@bestaat = 0,
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'ALTER TABLE `vault_files` ADD COLUMN `message_id` BIGINT NULL AFTER `subject_person_id`',
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'SELECT "message_id bestaat al" AS melding');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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-- ---------------------------------------------------------------- is_profile_photo
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SET @bestaat := (
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SELECT COUNT(*) FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'vault_files' AND COLUMN_NAME = 'is_profile_photo');
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SET @sql := IF(@bestaat = 0,
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'ALTER TABLE `vault_files` ADD COLUMN `is_profile_photo` TINYINT(1) NOT NULL DEFAULT 0',
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'SELECT "is_profile_photo bestaat al" AS melding');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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-- ---------------------------------------------------------------- indexen
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SET @bestaat := (
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SELECT COUNT(*) FROM information_schema.STATISTICS
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'vault_files' AND INDEX_NAME = 'ix_vault_files_subject');
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SET @sql := IF(@bestaat = 0,
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'CREATE INDEX `ix_vault_files_subject` ON `vault_files` (`subject_person_id`)',
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'SELECT "ix_vault_files_subject bestaat al" AS melding');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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SET @bestaat := (
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SELECT COUNT(*) FROM information_schema.STATISTICS
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'vault_files' AND INDEX_NAME = 'ix_vault_files_message');
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SET @sql := IF(@bestaat = 0,
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'CREATE INDEX `ix_vault_files_message` ON `vault_files` (`message_id`)',
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'SELECT "ix_vault_files_message bestaat al" AS melding');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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-- ---------------------------------------------------------------- relaties
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-- Verdwijnt de persoon of het bericht, dan verdwijnt de koppeling; het bestand zelf ruimt de
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-- applicatie op, want de versleutelde inhoud staat buiten de database.
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SET @bestaat := (
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SELECT COUNT(*) FROM information_schema.TABLE_CONSTRAINTS
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'vault_files' AND CONSTRAINT_NAME = 'fk_vf_subject');
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SET @sql := IF(@bestaat = 0,
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'ALTER TABLE `vault_files` ADD CONSTRAINT `fk_vf_subject` FOREIGN KEY (`subject_person_id`) REFERENCES `persons` (`id`) ON DELETE SET NULL',
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'SELECT "fk_vf_subject bestaat al" AS melding');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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SET @bestaat := (
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SELECT COUNT(*) FROM information_schema.TABLE_CONSTRAINTS
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'vault_files' AND CONSTRAINT_NAME = 'fk_vf_message');
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SET @sql := IF(@bestaat = 0,
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'ALTER TABLE `vault_files` ADD CONSTRAINT `fk_vf_message` FOREIGN KEY (`message_id`) REFERENCES `messages` (`id`) ON DELETE SET NULL',
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'SELECT "fk_vf_message bestaat al" AS melding');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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SELECT 'Klaar: foto''s bij personen en berichten toegevoegd aan vault_files.' AS melding;
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