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https://gitlab.archlinux.org/archlinux/aurweb.git
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042f3f2622
Signed-off-by: Florian Pritz <bluewind@xinu.at> Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
249 lines
7.6 KiB
Text
249 lines
7.6 KiB
Text
1. Drop the user ID foreign key from the "PackageComments" table:
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`ALTER TABLE PackageComments DROP FOREIGN KEY PackageComments_ibfk_1;` should
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work in most cases. Otherwise, check the output of `SHOW CREATE TABLE
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PackageComments;` and use the foreign key name shown there.
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2. Add support for anonymous comments:
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----
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ALTER TABLE PackageComments
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MODIFY UsersID INTEGER UNSIGNED NULL DEFAULT NULL,
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ADD FOREIGN KEY (UsersID) REFERENCES Users(ID) ON DELETE SET NULL;
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----
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3. Create the PackageBases table:
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----
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CREATE TABLE PackageBases (
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ID INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
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Name VARCHAR(64) NOT NULL,
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CategoryID TINYINT UNSIGNED NOT NULL DEFAULT 1,
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NumVotes INTEGER UNSIGNED NOT NULL DEFAULT 0,
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OutOfDateTS BIGINT UNSIGNED NULL DEFAULT NULL,
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SubmittedTS BIGINT UNSIGNED NOT NULL,
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ModifiedTS BIGINT UNSIGNED NOT NULL,
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SubmitterUID INTEGER UNSIGNED NULL DEFAULT NULL,
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MaintainerUID INTEGER UNSIGNED NULL DEFAULT NULL,
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PackagerUID INTEGER UNSIGNED NULL DEFAULT NULL,
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PRIMARY KEY (ID),
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UNIQUE (Name),
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INDEX (CategoryID),
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INDEX (NumVotes),
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INDEX (SubmitterUID),
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INDEX (MaintainerUID),
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INDEX (PackagerUID),
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FOREIGN KEY (CategoryID) REFERENCES PackageCategories(ID) ON DELETE NO ACTION,
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-- deleting a user will cause packages to be orphaned, not deleted
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FOREIGN KEY (SubmitterUID) REFERENCES Users(ID) ON DELETE SET NULL,
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FOREIGN KEY (MaintainerUID) REFERENCES Users(ID) ON DELETE SET NULL,
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FOREIGN KEY (PackagerUID) REFERENCES Users(ID) ON DELETE SET NULL
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) ENGINE = InnoDB;
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----
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4. Migrate data from Packages to PackageBases:
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----
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INSERT INTO PackageBases
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SELECT ID, Name, CategoryID, NumVotes, OutOfDateTS, SubmittedTS,
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ModifiedTS, SubmitterUID, MaintainerUID, NULL FROM Packages;
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----
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5. Delete unneeded foreign keys from Packages:
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First, drop the foreign keys on CategoryID, SubmitterUID and MaintainerUID. The
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following queries should work in most cases:
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----
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ALTER TABLE Packages
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DROP FOREIGN KEY Packages_ibfk_1,
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DROP FOREIGN KEY Packages_ibfk_2,
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DROP FOREIGN KEY Packages_ibfk_3;
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----
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You can use `SHOW CREATE TABLE Packages;` to check whether you should use
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different names for your setup.
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6. Delete unneeded fields from Packages:
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----
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ALTER TABLE Packages
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DROP COLUMN CategoryID,
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DROP COLUMN NumVotes,
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DROP COLUMN OutOfDateTS,
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DROP COLUMN SubmittedTS,
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DROP COLUMN ModifiedTS,
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DROP COLUMN SubmitterUID,
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DROP COLUMN MaintainerUID;
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----
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7. Add package base references to the Packages table:
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----
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ALTER TABLE Packages ADD COLUMN PackageBaseID INTEGER UNSIGNED NULL;
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UPDATE Packages SET PackageBaseID = ID;
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ALTER TABLE Packages
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MODIFY PackageBaseID INTEGER UNSIGNED NOT NULL,
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ADD FOREIGN KEY (PackageBaseID) REFERENCES PackageBases(ID) ON DELETE CASCADE;
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----
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8. Delete foreign keys from PackageVotes, PackageComments and CommentNotify:
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----
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ALTER TABLE PackageVotes
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DROP FOREIGN KEY PackageVotes_ibfk_1,
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DROP FOREIGN KEY PackageVotes_ibfk_2;
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ALTER TABLE PackageComments
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DROP FOREIGN KEY PackageComments_ibfk_3;
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ALTER TABLE CommentNotify
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DROP FOREIGN KEY CommentNotify_ibfk_1,
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DROP FOREIGN KEY CommentNotify_ibfk_2;
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----
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We highly recommend to use `SHOW CREATE TABLE PackageVotes;` etc. to check
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whether you should use different names for your setup.
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9. Delete indexes from PackageVotes and CommentNotify:
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----
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ALTER TABLE PackageVotes DROP INDEX VoteUsersIDPackageID;
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ALTER TABLE CommentNotify DROP INDEX NotifyUserIDPkgID;
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----
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10. Migrate PackageVotes, PackageComments and CommentNotify to refer to package
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bases:
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----
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ALTER TABLE PackageVotes ADD COLUMN PackageBaseID INTEGER UNSIGNED NOT NULL;
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UPDATE PackageVotes SET PackageBaseID = PackageID;
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ALTER TABLE PackageVotes DROP COLUMN PackageID;
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ALTER TABLE PackageComments ADD COLUMN PackageBaseID INTEGER UNSIGNED NOT NULL;
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UPDATE PackageComments SET PackageBaseID = PackageID;
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ALTER TABLE PackageComments DROP COLUMN PackageID;
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ALTER TABLE CommentNotify ADD COLUMN PackageBaseID INTEGER UNSIGNED NOT NULL;
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UPDATE CommentNotify SET PackageBaseID = PkgID;
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ALTER TABLE CommentNotify DROP COLUMN PkgID;
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----
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11. Recreate missing foreign keys and indexes:
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----
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ALTER TABLE PackageVotes
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ADD FOREIGN KEY (UsersID) REFERENCES Users(ID) ON DELETE CASCADE,
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ADD FOREIGN KEY (PackageBaseID) REFERENCES PackageBases(ID) ON DELETE CASCADE;
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ALTER TABLE PackageComments
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ADD FOREIGN KEY (PackageBaseID) REFERENCES PackageBases(ID) ON DELETE CASCADE;
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ALTER TABLE CommentNotify
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ADD FOREIGN KEY (PackageBaseID) REFERENCES PackageBases(ID) ON DELETE CASCADE,
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ADD FOREIGN KEY (UserID) REFERENCES Users(ID) ON DELETE CASCADE;
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CREATE UNIQUE INDEX VoteUsersIDPackageID ON PackageVotes (UsersID, PackageBaseID);
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CREATE UNIQUE INDEX NotifyUserIDPkgID ON CommentNotify (UserID, PackageBaseID);
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----
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12. Create a new table to store package dependency types:
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----
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CREATE TABLE DependencyTypes (
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ID TINYINT UNSIGNED NOT NULL AUTO_INCREMENT,
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Name VARCHAR(32) NOT NULL DEFAULT '',
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PRIMARY KEY (ID)
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) ENGINE = InnoDB;
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INSERT INTO DependencyTypes VALUES (1, 'depends');
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INSERT INTO DependencyTypes VALUES (2, 'makedepends');
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INSERT INTO DependencyTypes VALUES (3, 'checkdepends');
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INSERT INTO DependencyTypes VALUES (4, 'optdepends');
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----
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13. Add a field to store the dependency type to the PackageDepends table:
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----
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ALTER TABLE PackageDepends ADD COLUMN DepTypeID TINYINT UNSIGNED NOT NULL;
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UPDATE PackageDepends SET DepTypeID = 1;
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ALTER TABLE PackageDepends
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ADD FOREIGN KEY (DepTypeID) REFERENCES DependencyTypes(ID) ON DELETE NO ACTION;
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----
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14. Resize the package dependency name field:
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----
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ALTER TABLE PackageDepends MODIFY DepName VARCHAR(255) NOT NULL;
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----
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15. Create a new table to store package relation types:
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----
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CREATE TABLE RelationTypes (
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ID TINYINT UNSIGNED NOT NULL AUTO_INCREMENT,
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Name VARCHAR(32) NOT NULL DEFAULT '',
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PRIMARY KEY (ID)
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) ENGINE = InnoDB;
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INSERT INTO RelationTypes VALUES (1, 'conflicts');
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INSERT INTO RelationTypes VALUES (2, 'provides');
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INSERT INTO RelationTypes VALUES (3, 'replaces');
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----
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16. Create a new table to store package relations:
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----
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CREATE TABLE PackageRelations (
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PackageID INTEGER UNSIGNED NOT NULL,
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RelTypeID TINYINT UNSIGNED NOT NULL,
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RelName VARCHAR(255) NOT NULL,
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RelCondition VARCHAR(20),
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INDEX (PackageID),
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INDEX (RelName),
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FOREIGN KEY (PackageID) REFERENCES Packages(ID) ON DELETE CASCADE,
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FOREIGN KEY (RelTypeID) REFERENCES RelationTypes(ID) ON DELETE NO ACTION
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) ENGINE = InnoDB;
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----
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17. Create tables to store package groups:
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----
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CREATE TABLE `Groups` (
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ID INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
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Name VARCHAR(64) NOT NULL,
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PRIMARY KEY (ID),
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UNIQUE (Name)
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) ENGINE = InnoDB;
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CREATE TABLE PackageGroups (
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PackageID INTEGER UNSIGNED NOT NULL,
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GroupID INTEGER UNSIGNED NOT NULL,
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PRIMARY KEY (PackageID, GroupID),
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FOREIGN KEY (PackageID) REFERENCES Packages(ID) ON DELETE CASCADE,
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FOREIGN KEY (GroupID) REFERENCES `Groups`(ID) ON DELETE CASCADE
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) ENGINE = InnoDB;
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----
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18. Create tables to store package licenses:
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----
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CREATE TABLE Licenses (
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ID INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
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Name VARCHAR(64) NOT NULL,
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PRIMARY KEY (ID),
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UNIQUE (Name)
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) ENGINE = InnoDB;
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CREATE TABLE PackageLicenses (
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PackageID INTEGER UNSIGNED NOT NULL,
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LicenseID INTEGER UNSIGNED NOT NULL,
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PRIMARY KEY (PackageID, LicenseID),
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FOREIGN KEY (PackageID) REFERENCES Packages(ID) ON DELETE CASCADE,
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FOREIGN KEY (LicenseID) REFERENCES Licenses(ID) ON DELETE CASCADE
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) ENGINE = InnoDB;
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----
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19. Convert existing licenses to the new storage format:
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----
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INSERT INTO Licenses (Name) SELECT DISTINCT License FROM Packages;
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INSERT INTO PackageLicenses (PackageID, LicenseID)
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SELECT Packages.ID, Licenses.ID FROM Packages
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INNER JOIN Licenses ON Licenses.Name = Packages.License;
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----
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20. Delete the license column from the Packages table:
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----
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ALTER TABLE Packages DROP COLUMN License;
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----
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