);
CREATE TABLE word (
- form text NOT NULL,
+ form text,
alt text[],
- lang text NOT NULL DEFAULT 'en',
+ lang text DEFAULT 'en',
cat integer REFERENCES word (id),
ref integer REFERENCES word (id),
prio smallint DEFAULT '1'
CHECK (prio >= 0 OR ref IS NOT NULL),
grade integer,
cover boolean NOT NULL DEFAULT FALSE,
- source text,
- thumb text[],
+ image jsonb CHECK (image->>'source' ~ '^https?://'
+ AND jsonb_typeof(image->'convert') = 'array'),
wptitle text,
- created timestamptz DEFAULT now(),
+ story text,
creator integer REFERENCES login (id),
+ created timestamptz DEFAULT now(),
updated timestamptz,
id serial NOT NULL PRIMARY KEY
);
COMMENT ON COLUMN word.form IS 'preferred textual representation';
COMMENT ON COLUMN word.alt IS 'alternate forms with equivalent meaning';
COMMENT ON COLUMN word.lang IS 'ISO 639 language code matching wikipedia subdomain';
-COMMENT ON COLUMN word.cat IS 'hierarchical classification';
+COMMENT ON COLUMN word.cat IS 'primary hierarchical classification';
COMMENT ON COLUMN word.ref IS 'reference to equivalent en translation';
COMMENT ON COLUMN word.prio IS 'difficulty level or importance; lower values have precedence';
COMMENT ON COLUMN word.grade IS 'ascending hierarchical order, preceding default alphabetical';
COMMENT ON COLUMN word.cover IS 'highlight if selected';
-COMMENT ON COLUMN word.source IS 'URI of downloaded image';
-COMMENT ON COLUMN word.thumb IS 'ImageMagick convert options to create thumbnail from source image';
+COMMENT ON COLUMN word.image IS 'metadata of illustrations, including downloaded URI and ImageMagick convert options';
COMMENT ON COLUMN word.wptitle IS 'reference Wikipedia article';
+COMMENT ON COLUMN word.story IS 'paragraph defining or describing the entity, wikipedia intro';
COMMENT ON COLUMN word.updated IS 'last significant change';
COMMENT ON COLUMN word.creator IS 'user responsible for initial submit';
+CREATE TABLE kind (
+ word integer NOT NULL REFERENCES word (id),
+ cat integer NOT NULL REFERENCES word (id),
+ UNIQUE (word, cat),
+ truth smallint NOT NULL DEFAULT '50',
+ creator integer REFERENCES login (id),
+ created timestamptz DEFAULT now(),
+ updated timestamptz,
+ id serial NOT NULL PRIMARY KEY
+);
+
+COMMENT ON COLUMN kind.truth IS 'link validity ranging from 0 (never) to 100 (always)';
+
CREATE OR REPLACE FUNCTION exportform(word) RETURNS text AS $$
SELECT concat(
- $1.prio || CASE WHEN $1.cover THEN 'c' ELSE '' END || ':',
+ coalesce($1.ref, $1.id), ':',
+ $1.prio, CASE WHEN $1.cover THEN 'c' ELSE '' END, ':',
array_to_string($1.form || $1.alt, '/')
);
$$ LANGUAGE SQL IMMUTABLE;
+CREATE OR REPLACE VIEW _word_ref AS
+ SELECT
+ r.form, r.alt, r.lang,
+ coalesce(r.cat, w.cat ) cat, --TODO translate w?
+ coalesce(r.ref, r.id ) "ref",
+ coalesce(r.prio, w.prio ) prio,
+ coalesce(r.grade, w.grade ) grade,
+ coalesce(r.cover, w.cover ) cover,
+ coalesce(r.image, w.image ) image,
+ coalesce(r.wptitle, w.wptitle) wptitle,
+ coalesce(r.story, w.story ) story,
+ r.creator, r.created, r.updated,
+ CASE WHEN r.image IS NULL THEN w.id ELSE r.id END id -- image id
+ FROM word r
+ LEFT JOIN word w ON w.id = r.ref;
+
CREATE OR REPLACE VIEW _cat_words AS
SELECT exportform(word.*) form, sub.*, word.lang, word.ref
FROM word RIGHT JOIN (