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Add a field for package base popularity

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Create a new field Popularity in the PackageBases table. The field is
updated by the popupdate script and reflects the popularity of a
package. Popularity is the sum of all votes with each vote being
weighted with a factor of 0.98 per day since its creation.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>
This commit is contained in:
Lukas Fleischer 2015-06-11 18:41:58 +02:00
parent 0345914c5c
commit 824744f1d2
3 changed files with 14 additions and 1 deletions
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1
schema/aur-schema.sql
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@ -102,6 +102,7 @@ CREATE TABLE PackageBases (
Name VARCHAR(255) NOT NULL,
CategoryID TINYINT UNSIGNED NOT NULL DEFAULT 1,
NumVotes INTEGER UNSIGNED NOT NULL DEFAULT 0,
Popularity DECIMAL(6,2) UNSIGNED NOT NULL DEFAULT 0,
OutOfDateTS BIGINT UNSIGNED NULL DEFAULT NULL,
SubmittedTS BIGINT UNSIGNED NOT NULL,
ModifiedTS BIGINT UNSIGNED NOT NULL,

5
scripts/popupdate.py
View file

@ -23,5 +23,10 @@ cur = db.cursor()
cur.execute("UPDATE PackageBases SET NumVotes = (SELECT COUNT(*) FROM " +
"PackageVotes WHERE PackageVotes.PackageBaseID = PackageBases.ID)")
cur.execute("UPDATE PackageBases SET Popularity = (" +
"SELECT SUM(POWER(0.98, (UNIX_TIMESTAMP() - VoteTS) / 86400)) " +
"FROM PackageVotes WHERE PackageVotes.PackageBaseID = " +
"PackageBases.ID AND NOT VoteTS IS NULL)")
db.commit()
db.close()

9
upgrading/4.0.0.txt
View file

@ -31,4 +31,11 @@ CREATE TABLE PackageComaintainers (
) ENGINE = InnoDB;
----
5. (optional) Setup cgit to browse the Git repositories via HTTP.
5. Add a field for the package base popularity to the PackageBases table:
----
ALTER TABLE PackageBases
ADD COLUMN Popularity DECIMAL(6,2) UNSIGNED NOT NULL DEFAULT 0;
----
6. (optional) Setup cgit to browse the Git repositories via HTTP.