Create a Translationsystem that deals with delivered items, JSON Structure of ContenItems and performance and as a Bonus works with graphile
A "SQLish" concept - with only 4 languages
Testable via
https://repco.arbeit.cba.media/graphiql
> Items without Translation become null ( what is maybe smart)
> Performance is on Dev ( many items - but not so many as Live) ok for single records.
> But a query over many items takes time
4257 records in 14s
SELECT *,uid,t_title,title FROM public."Translation"
WHERE "contentUrl"::text Like '%new%'
LIMIT 10000
> Limit 50: 0:0:0:357 ( fast as content items)
I mean this is not that bad, cause no smart index are added in this concept.
--------- Test Graph --------
```
query MyQuery {
translations(condition: {uid: "eayughhwwbcbqrw4cgscagnvqee"}) {
edges {
node {
tTitle
title
pubDate
contentUrl
contentFormat
content
licenseUid
originalLanguages
primaryGroupingUid
publicationServiceUid
removed
revisionId
subtitle
summary
tContent
tSubtitle
tSummary
uid
}
}
totalCount
}
}
```
--------- First Test --------
```
create or replace function jsonb_merge_recurse(orig jsonb, delta jsonb)
returns jsonb language sql as $$
select
jsonb_object_agg(
coalesce(keyOrig, keyDelta),
case
when valOrig isnull then valDelta
when valDelta isnull then valOrig
when (jsonb_typeof(valOrig) <> 'object' or jsonb_typeof(valDelta) <> 'object') then valDelta
else jsonb_merge_recurse(valOrig, valDelta)
end
)
from jsonb_each(orig) e1(keyOrig, valOrig)
full join jsonb_each(delta) e2(keyDelta, valDelta) on keyOrig = keyDelta
$$;
CREATE OR REPLACE FUNCTION public.getmlbase(
lang text)
RETURNS TABLE(uid text, revisionid text, queryparam text, title text, summary text, content text, originallanguages text, contenturl text, pubdate timestamp without time zone)
LANGUAGE 'sql'
COST 100
VOLATILE PARALLEL UNSAFE
ROWS 1000
AS $BODY$
SELECT
uid,
"revisionId",
$1 as param,
TRIM(BOTH '"'::text FROM (((title ->> $1::text)::jsonb) -> 'value'::text)::text) AS title,
TRIM(BOTH '"'::text FROM (((summary ->> $1::text)::jsonb) -> 'value'::text)::text) AS summary,
TRIM(BOTH '"'::text FROM (((content ->> $1::text)::jsonb) -> 'value'::text)::text) AS content,
TRIM(BOTH '"'::text FROM ((("originalLanguages" ->> 'language_codes'::text)::jsonb) -> 0)::text) AS "origlang",
"contentUrl",
"pubDate"
FROM
"ContentItem"
WHERE
removed = false
AND TRIM(BOTH '"'::text FROM ((("originalLanguages" ->> 'language_codes'::text)::jsonb) -> 0)::text) = $1
;
$BODY$;
ALTER FUNCTION public.getmlbase(text)
OWNER TO repco;
CREATE TABLE IF NOT EXISTS public."ContentItemTranslation"
(
uid text COLLATE pg_catalog."default" NOT NULL,
"targetLanguage" text COLLATE pg_catalog."default" NOT NULL,
title text COLLATE pg_catalog."default" NOT NULL,
subtitle text COLLATE pg_catalog."default" NOT NULL,
summary text COLLATE pg_catalog."default" NOT NULL,
"summaryCleaned" text COLLATE pg_catalog."default" NOT NULL,
content text COLLATE pg_catalog."default" NOT NULL,
"contentCleaned" text COLLATE pg_catalog."default" NOT NULL,
metadata text COLLATE pg_catalog."default" NOT NULL,
engine text COLLATE pg_catalog."default" NOT NULL,
"createdAt" timestamp(3) without time zone NOT NULL,
"updatedAt" timestamp(3) without time zone NOT NULL,
"revisionId" text COLLATE pg_catalog."default" NOT NULL,
"contentItemUid" text COLLATE pg_catalog."default" NOT NULL,
CONSTRAINT "ContentItemTranslation_pkey" PRIMARY KEY (uid),
CONSTRAINT "ContentItemTranslation_contentItemUid_fkey" FOREIGN KEY ("contentItemUid")
REFERENCES public."ContentItem" (uid) MATCH SIMPLE
ON UPDATE CASCADE
ON DELETE CASCADE,
CONSTRAINT "ContentItemTranslation_revisionId_fkey" FOREIGN KEY ("revisionId")
REFERENCES public."Revision" (id) MATCH SIMPLE
ON UPDATE CASCADE
ON DELETE RESTRICT
)
--- UNique uid deleted not relevant for this tests ---
TABLESPACE pg_default;
ALTER TABLE IF EXISTS public."ContentItemTranslation"
OWNER to repco;
INSERT INTO "ContentItemTranslation" (
uid, "targetLanguage", title, subtitle , summary, "summaryCleaned",
content, "contentCleaned",
metadata,
engine, "createdAt", "updatedAt",
"contentItemUid","revisionId"
)
SELECT
CONCAT('trans_',uid),
"getmlbase"."originallanguages",
title, 'notnull' as subtitle,
summary,
summary as "summaryCleaned",
content, content as "contentCleaned",
'Test put' as meta,
'PG' as engine,
'2011-09-02 11:42:18' as "createdAt", '2011-09-02 11:42:18' as "updatedAt",
uid as "contentItemUid","revisionid" as "revisionId"
FROM getMlBase('en')
INSERT INTO "ContentItemTranslation" (
uid, "targetLanguage", title, subtitle , summary, "summaryCleaned",
content, "contentCleaned",
metadata,
engine, "createdAt", "updatedAt",
"contentItemUid","revisionId"
)
SELECT
CONCAT('trans_',uid),
"getmlbase"."originallanguages",
title, 'notnull' as subtitle,
summary,
summary as "summaryCleaned",
content, content as "contentCleaned",
'Test put' as meta,
'PG' as engine,
'2011-09-02 11:42:18' as "createdAt", '2011-09-02 11:42:18' as "updatedAt",
uid as "contentItemUid","revisionid" as "revisionId"
FROM getMlBase('de')
INSERT INTO "ContentItemTranslation" (
uid, "targetLanguage", title, subtitle , summary, "summaryCleaned",
content, "contentCleaned",
metadata,
engine, "createdAt", "updatedAt",
"contentItemUid","revisionId"
)
SELECT
CONCAT('trans_',uid),
"getmlbase"."originallanguages",
title, 'notnull' as subtitle,
summary,
summary as "summaryCleaned",
content, content as "contentCleaned",
'Test put' as meta,
'PG' as engine,
'2011-09-02 11:42:18' as "createdAt", '2011-09-02 11:42:18' as "updatedAt",
uid as "contentItemUid","revisionid" as "revisionId"
FROM getMlBase('pl')
INSERT INTO "ContentItemTranslation" (
uid, "targetLanguage", title, subtitle , summary, "summaryCleaned",
content, "contentCleaned",
metadata,
engine, "createdAt", "updatedAt",
"contentItemUid","revisionId"
)
SELECT
CONCAT('trans_',uid),
"getmlbase"."originallanguages",
title, 'notnull' as subtitle,
summary,
summary as "summaryCleaned",
content, content as "contentCleaned",
'Test put' as meta,
'PG' as engine,
'2011-09-02 11:42:18' as "createdAt", '2011-09-02 11:42:18' as "updatedAt",
uid as "contentItemUid","revisionid" as "revisionId"
FROM getMlBase('it')
SELECT DISTINCT "targetLanguage" FROM public."ContentItemTranslation"
UPDATE public."ContentItemTranslation"
SET
content = CONCAT('PL pl pl ',content),
summary = CONCAT('PL pl pl ',summary),
title = CONCAT('PL pl pl ',title),
subtitle = CONCAT('PL pl pl ',subtitle)
WHERE "targetLanguage" = 'pl'
UPDATE public."ContentItemTranslation"
SET
content = CONCAT('it it it ',content),
summary = CONCAT('it it it ',summary),
title = CONCAT('it it it ',title),
subtitle = CONCAT('it it it ',subtitle)
WHERE "targetLanguage" = 'it'
UPDATE public."ContentItemTranslation"
SET
content = CONCAT('de de de ',content),
summary = CONCAT('de de de ',summary),
title = CONCAT('de de de ',title),
subtitle = CONCAT('de de de ',subtitle)
WHERE "targetLanguage" = 'de'
UPDATE public."ContentItemTranslation"
SET
content = CONCAT('en en en ',content),
summary = CONCAT('en en en ',summary),
title = CONCAT('en en en ',title),
subtitle = CONCAT('en en en ',subtitle)
WHERE "targetLanguage" = 'en'
Select
jsonb_merge_recurse(
"ContentItem".title,
jsonb_build_object(
'it',jsonb_build_object('value',it.title),
'de',jsonb_build_object('value',de.title),
'en',jsonb_build_object('value',en.title),
'pl',jsonb_build_object('value',pl.title)
)
) as t_title,
jsonb_merge_recurse(
"ContentItem".subtitle,
jsonb_build_object(
'it',jsonb_build_object('value',it.subtitle),
'de',jsonb_build_object('value',de.subtitle),
'en',jsonb_build_object('value',en.subtitle),
'pl',jsonb_build_object('value',pl.subtitle)
)
) as t_subtitle,
jsonb_merge_recurse(
"ContentItem".summary,
jsonb_build_object(
'it',jsonb_build_object('value',it.summary),
'de',jsonb_build_object('value',de.summary),
'en',jsonb_build_object('value',en.summary),
'pl',jsonb_build_object('value',pl.summary)
)
) as t_summary,
jsonb_merge_recurse(
"ContentItem".content,
jsonb_build_object(
'it',jsonb_build_object('value',it.content),
'de',jsonb_build_object('value',de.content),
'en',jsonb_build_object('value',en.content),
'pl',jsonb_build_object('value',pl.content)
)
) as t_content
FROM
"ContentItem"
LEFT JOIN "ContentItemTranslation" as en ON (
"ContentItem".uid = en."contentItemUid"
AND en."targetLanguage" = 'en'
)
LEFT JOIN "ContentItemTranslation" as pl ON (
"ContentItem".uid = pl."contentItemUid"
AND pl."targetLanguage" = 'pl'
)
LEFT JOIN "ContentItemTranslation" as de ON (
"ContentItem".uid = de."contentItemUid"
AND de."targetLanguage" = 'de'
)
LEFT JOIN "ContentItemTranslation" as it ON (
"ContentItem".uid = it."contentItemUid"
AND it."targetLanguage" = 'it'
)
--WHERE "ContentItem".uid = 'eayupl264kvsaraifppmnptgm6a'
--AND t."targetLanguage" = 'en'
-- View: public.Translations
-- DROP VIEW public."Translations";
CREATE OR REPLACE VIEW public."Translations"
AS
SELECT jsonb_merge_recurse("ContentItem".title, jsonb_build_object('en', jsonb_build_object('value', en.title), 'pl', jsonb_build_object('value', pl.title))) AS t_title,
jsonb_merge_recurse("ContentItem".subtitle, jsonb_build_object('en', jsonb_build_object('value', en.subtitle), 'pl', jsonb_build_object('value', pl.subtitle))) AS t_subtitle,
jsonb_merge_recurse("ContentItem".summary, jsonb_build_object('en', jsonb_build_object('value', en.summary), 'pl', jsonb_build_object('value', pl.summary))) AS t_summary,
jsonb_merge_recurse("ContentItem".content, jsonb_build_object('en', jsonb_build_object('value', en.content), 'pl', jsonb_build_object('value', pl.content))) AS t_content,
"ContentItem".uid,
"ContentItem"."revisionId",
"ContentItem"."pubDate",
"ContentItem"."contentFormat",
"ContentItem"."primaryGroupingUid",
"ContentItem"."licenseUid",
"ContentItem"."publicationServiceUid",
"ContentItem".title,
"ContentItem".summary,
"ContentItem".content,
"ContentItem"."originalLanguages",
"ContentItem".removed,
"ContentItem"."contentUrl",
"ContentItem".subtitle
FROM "ContentItem"
LEFT JOIN "ContentItemTranslation" en ON "ContentItem".uid = en."contentItemUid" AND en."targetLanguage" = 'en'::text
LEFT JOIN "ContentItemTranslation" pl ON "ContentItem".uid = pl."contentItemUid" AND pl."targetLanguage" = 'pl'::text;
ALTER TABLE public."Translations"
OWNER TO repco;
--------
Graphen
query MyQuery {
translations(condition: {uid: "eayughhwwbcbqrw4cgscagnvqee"}) {
edges {
node {
tTitle
title
pubDate
contentUrl
contentFormat
content
licenseUid
originalLanguages
primaryGroupingUid
publicationServiceUid
removed
revisionId
subtitle
summary
tContent
tSubtitle
tSummary
uid
}
}
totalCount
}
}
query MyQuery {
contentItems(first: 10, condition: {search: "Soviet AND Becoming AND case"}) {
edges {
node {
uid
pubDate
title
contentUrl
contentItemTranslations {
edges {
node {
engine
revisionId
contentItemUid
subtitle
summary
summaryCleaned
targetLanguage
content
contentCleaned
title
updatedAt
}
}
totalCount
}
revisionId
}
}
totalCount
}
}
```
issue