2024-10-29_14-25-10_CET

feed_watcher/feedWatcher_schema.sql

@@ -0,0 +1,149 @@
+--
+-- feedWatcher_schema.sql - version 0.0.9
+--
+-- Renamed 'feedWatcher.sql' => `feedWatcher_schema.sql' on 2020-01-18
+--
+
+/*
+ * Table 'urls'
+ * ------------
+ *
+ * The main table containing host, http and feed information
+ */
+
+DROP TABLE IF EXISTS episodes;
+
+CREATE TABLE urls (
+    id                  integer PRIMARY KEY,
+    url                 varchar(1024) NOT NULL,
+    dns                 text,
+    host_up             boolean DEFAULT 0,
+    http_status         varchar(80),
+    content_type        varchar(40),
+    urltype             varchar(40),
+    feedformat          varchar(20),
+    title               varchar(1024),
+    description         text,
+    author              varchar(80),
+    modified            timestamp,
+    link                varchar(1024),
+    image               varchar(1024),
+    copyright           varchar(80),
+    generator           varchar(80),
+    language            varchar(40),
+    last_update         timestamp NOT NULL DEFAULT (CURRENT_TIMESTAMP)
+);
+
+--
+-- Ensure the 'url' column is unique
+--
+
+DROP INDEX IF EXISTS url_index;
+
+CREATE UNIQUE INDEX url_index ON urls ( url );
+
+--
+-- Trigger to update the 'last_update' field every time the row changes
+--
+
+DROP TRIGGER IF EXISTS urls_last_updated;
+
+CREATE TRIGGER urls_last_updated AFTER UPDATE ON urls
+    BEGIN
+        UPDATE urls SET last_update = datetime('now');
+    END;
+
+/*
+ * Table 'episodes'
+ * ----------------
+ *
+ * Has a foreign key relationship with table 'urls'. If the matching row in
+ * 'urls' is deleted the deletion cascades to this table (ON DELETE CASCADE).
+ * If the primary key in 'urls' is updated the relationship prevents this
+ * change (ON UPDATE RESTRICT).
+ */
+
+DROP TABLE IF EXISTS episodes;
+
+CREATE TABLE episodes (
+    id                  integer PRIMARY KEY,
+    urls_id             integer NOT NULL
+                            REFERENCES urls (id)
+                            ON DELETE CASCADE
+                            ON UPDATE RESTRICT,
+    link                varchar(1024),
+    enclosure           varchar(256),
+    title               varchar(256),
+    author              varchar(256),
+    category            text,
+    source              varchar(128),
+    ep_id               varchar(256),
+    issued              timestamp,
+    modified            timestamp,
+    byte_length         bigint,
+    mime_type           varchar(64),
+    last_update         timestamp NOT NULL DEFAULT (CURRENT_TIMESTAMP)
+);
+
+--
+-- Ensure the 'enclosure' column is unique (per feed)
+--
+
+DROP INDEX IF EXISTS enclosure_index;
+
+CREATE UNIQUE INDEX enclosure_index ON episodes ( urls_id, enclosure );
+
+--
+-- Trigger to update the 'last_update' field every time the row changes
+--
+
+DROP TRIGGER IF EXISTS episodes_last_updated;
+
+CREATE TRIGGER episodes_last_updated AFTER UPDATE ON episodes
+    BEGIN
+        UPDATE episodes SET last_update = datetime('now');
+    END;
+
+--
+-- View to simplify joining the two tables.
+--
+
+DROP VIEW IF EXISTS all_episodes;
+
+CREATE VIEW all_episodes AS
+    SELECT
+        urls.id as urls_id,
+        urls.url as urls_url,
+        urls.dns as urls_dns,
+        urls.host_up as urls_host_up,
+        urls.http_status as urls_http_status,
+        urls.content_type as urls_content_type,
+        urls.urltype as urls_urltype,
+        urls.feedformat as urls_feedformat,
+        urls.title as urls_title,
+        urls.description as urls_description,
+        urls.author as urls_author,
+        urls.modified as urls_modified,
+        urls.link as urls_link,
+        urls.image as urls_image,
+        urls.copyright as urls_copyright,
+        urls.generator as urls_generator,
+        urls.language as urls_language,
+        urls.last_update as urls_last_update,
+        ep.id as ep_id,
+        ep.urls_id as ep_urls_id,
+        ep.link as ep_link,
+        ep.enclosure as ep_enclosure,
+        ep.title as ep_title,
+        ep.author as ep_author,
+        ep.category as ep_category,
+        ep.source as ep_source,
+        ep.ep_id as ep_ep_id,
+        ep.issued as ep_issued,
+        ep.modified as ep_modified,
+        ep.byte_length as ep_byte_length,
+        ep.mime_type as ep_mime_type,
+        ep.last_update as ep_last_update
+    FROM urls LEFT JOIN episodes ep ON urls.id = ep.urls_id;
+
+-- vim: syntax=sql:ts=8:ai:tw=78:et:fo=tcrqn21:comments+=b\:--