{"id":92107,"date":"2020-08-23T07:42:16","date_gmt":"2020-08-23T05:42:16","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/etyud-po-realizaczii-row-level-secutity-v-postgresql"},"modified":"2020-08-23T07:42:16","modified_gmt":"2020-08-23T05:42:16","slug":"etyud-po-realizaczii-row-level-secutity-v-postgresql","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/etyud-po-realizaczii-row-level-secutity-v-postgresql","title":{"rendered":"Studimi mbi implementimin e Siguris\u00eb n\u00eb Nivelin e Rreshtit n\u00eb PostgreSQL","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Si nj\u00eb shtes\u00eb p\u00ebr Studimi mbi realizimin e logjik\u00ebs s\u00eb biznesit n\u00eb nivelin e funksioneve t\u00eb pagabueshme PostgreSQL<\/a><\/noindex> dhe n\u00eb thelb p\u00ebr nj\u00eb p\u00ebrgjigje t\u00eb zgjeruar<\/b> n\u00eb komentar<\/a><\/noindex>.<\/p>\n

Pjesa teorike \u00ebsht\u00eb e shkruar shum\u00eb mir\u00eb n\u00eb dokumentacion Postgres Pro<\/a><\/noindex> \u2014 Politikat e mbrojtjes s\u00eb rreshtave<\/a><\/noindex>. M\u00eb posht\u00eb paraqitet realizimi praktik i nj\u00eb problemi specifik t\u00eb biznesit \u2014 fshehja e t\u00eb dh\u00ebnave t\u00eb fshirura.<\/b> Studimi i dedikuar implementimit t\u00eb modelit t\u00eb rolit duke p\u00ebrdorur RLS<\/a><\/noindex><\/b> \u00ebsht\u00eb paraqitur ve\u00e7mas.<\/p>\n

\"Studimi<\/p>\n

N\u00eb artikull nuk ka asgj\u00eb t\u00eb re, nuk ka kuptim t\u00eb fshehur dhe njohuri sekrete. Thjesht nj\u00eb skic\u00eb mbi realizimin praktik t\u00eb nj\u00eb ideje teorike. N\u00ebse dikujt i intereson \u2014 lexoni. N\u00ebse nuk intereson \u2014 mos e humbni koh\u00ebn tuaj kot.<\/p><\/blockquote>\n

<\/a><\/noindex><\/p>\n

Vendosja e detyr\u00ebs<\/h3>\n

\nPa u thelluar shum\u00eb n\u00eb fush\u00ebn e l\u00ebnd\u00ebs, shkurt, detyra mund t\u00eb formulohet si m\u00eb posht\u00eb: ka nj\u00eb tabel\u00eb q\u00eb realizon nj\u00eb entitet t\u00eb caktuar biznesi. Rreshtat n\u00eb tabel\u00eb mund t\u00eb fshihen, por nuk mund t\u00eb fshihen fizikisht, duhet t\u00eb fshihen. <\/p>\n

Sepse \u00ebsht\u00eb th\u00ebn\u00eb \u2014 \"Mos fshi asgj\u00eb, thjesht riem\u00ebroje. Interneti ruan GJITH\u00c7KA\" <\/b><\/p>\n

<\/i> P\u00ebrve\u00e7 k\u00ebsaj, \u00ebsht\u00eb e d\u00ebshirueshme t\u00eb mos rishkruhen funksionet e pagabueshme q\u00eb tashm\u00eb funksionojn\u00eb me k\u00ebt\u00eb entitet.<\/p>\n

P\u00ebr t\u00eb realizuar k\u00ebt\u00eb koncept, tabela ka atributin is_deleted<\/i>. M\u00eb pas, \u00e7do gj\u00eb \u00ebsht\u00eb e thjesht\u00eb \u2014 \u00ebsht\u00eb e nevojshme t\u00eb b\u00ebhet q\u00eb klienti t\u00eb mund t\u00eb shoh\u00eb vet\u00ebm rreshtat ku atributi is_deleted<\/i> \u00ebsht\u00eb i falsifikuar. P\u00ebr k\u00ebt\u00eb sh\u00ebrben mekanizmi Siguria n\u00eb Nivel t\u00eb Rreshtave.<\/b><\/p>\n

Realizimi<\/h3>\n

\nKrijojm\u00eb nj\u00eb rol dhe nj\u00eb skem\u00eb t\u00eb ve\u00e7ant\u00eb<\/p>\n

Krijo ROL repos;\nKrijo SKEM\u00cb repos;<\/code><\/pre>\n
\nKrijojm\u00eb tabel\u00ebn e synuar<\/p>\n
Krijo TABEL\u00cb repos.file\n(\n...\nis_del BOOLEAN DEFAULT FALSE\n);\nKrijo SKEM\u00cb repos<\/code><\/pre>\n
\nAktivizojm\u00eb Siguria n\u00eb Nivel t\u00eb Rreshtave<\/i><\/p>\n
MODIFIKO TABEL\u00cb repos.file ENABLE ROW LEVEL SECURITY;\nKrijo POLITIK\u00cb file_invisible_deleted ON repos.file P\u00cbR T\u00cb GJITHA NGA dba_role P\u00cbRDORIMI (Nuk \u00ebsht\u00eb is_deleted);\nPROFITO T\u00cb GJITHA N\u00cb TABEL\u00cb repos.file p\u00ebr dba_role;\nPROFITO K\u00cbRKIMIN N\u00cb SKEM\u00cb repos p\u00ebr dba_role;<\/code><\/pre>\n
\nFunksioni sh\u00ebrbyes<\/b> \u2014 fshirja e nj\u00eb rreshti n\u00eb tabel\u00eb<\/p>\n
Krijo OSE ZVENDOS repos.delete(curr_id repos.file.id%TYPE)\nKTHE INTEGER AS $$\nFILLIM\n...\nMODIFIKO repos.file\nSET is_del = TRUE \nKU ID = curr_id;\n...\nFUND\n$$ GJUHA plpgsql SIGURIA DEFINER;<\/code><\/pre>\n
\nFunksioni i biznesit<\/b> \u2014 fshirja e dokumentit<\/p>\n
Krijo OSE ZVENDOS business_functions.deleteDoc(doc_for_delete JSON)\nKTHE JSON AS $$\nFILLIM\n...\nPERFORM repos.delete(doc_id);\n...\nFUND\n$$ GJUHA plpgsql SIGURIA DEFINER;<\/code><\/pre>\n
<\/p>\n
Rezultatet<\/h3>\n
\nKlienti fshin dokumentin<\/p>\n
SELECT business_functions.delCFile((SELECT json_build_object('CId', 3)));<\/code><\/pre>\n
\nPas fshirjes, klienti i dokumentit nuk e sheh<\/p>\n
SELECT business_functions.getCFile( (SELECT json_build_object( 'CId', 3 )) ) ;\n-----------------\n(0 rows)<\/code><\/pre>\n
\nPor n\u00eb DB dokumenti nuk \u00ebsht\u00eb fshir\u00eb, vet\u00ebm \u00ebsht\u00eb ndryshuar atributi is_del<\/i><\/p>\n
psql -d my_db\nSELECT id, name, is_del FROM repos.file;\nid | name | is_del\n--+---------+------------\n 1 | test_1 | t\n(1 rresht)<\/code><\/pre>\n
\n\u00c7far\u00eb ishte e nevojshme p\u00ebr t\u00eb sqaruar objektivin. <\/p>\n
P\u00ebrfundimi<\/h2>\n
\nN\u00ebse tema do t\u00eb jet\u00eb interesante, n\u00eb etyudin e ardhsh\u00ebm mund t\u00eb tregohet nj\u00eb shembull i zbatimit t\u00eb modelit t\u00eb rolit p\u00ebr ndarjen e aksesit n\u00eb t\u00eb dh\u00ebna duke p\u00ebrdorur Sigurin\u00eb n\u00eb Nivelin e Rreshtave.
\n
Burimi: habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"
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