Ny antony nanosika an'ity sketch ity dia ny lahatsoratra . Hitako mahaliana ihany koa ilay lahatsoratra nivoaka 4 taona lasa izay - .
Toa mahaliana fa ny eritreritra mitovy - "ampiharo ny lojika fandraharahana ao amin'ny angon-drakitra".
Tsy izaho irery no tonga tao an-tsaiko.
Ary koa, ho an'ny ho avy, te-hitahiry, voalohany indrindra, ho an'ny tenako, ny fivoarana mahaliana izay nipoitra nandritra ny fampiharana. Indrindra raha jerena fa vao haingana dia nisy fanapahan-kevitra stratejika natao hanovana ny maritrano sy hamindra ny lojika fandraharahana ho any amin'ny sehatra backend. Ka izay rehetra novolavolaina dia tsy ho ela dia tsy hisy ilàna azy ary tsy hahaliana na iza na iza.
Ny fomba voalaza dia tsy karazana fikarohana na miavaka. Fantaro ny fomba, mahazatra ny zava-drehetra ary efa nampiharina imbetsaka (ohatra, nampiasa fomba fiasa mitovy amin'izany aho 20 taona lasa izay tao amin'ny Oracle) Nanapa-kevitra ny hanangona ny zava-drehetra amin'ny toerana iray aho. Raha toa ka mety ho an'ny olona iray izany. Araka ny nasehon'ny fanazaran-tena, matetika ny hevitra mitovy dia tonga amin'ny olona samy hafa tsy miankina. Ary mahasoa ny mitazona izany ho anao ho fahatsiarovana.
Mazava ho azy fa tsy misy tonga lafatra eto amin'ity tontolo ity, indrisy fa misy ny fahadisoana sy ny diso. Ny fanakianana sy ny fanehoan-kevitra dia raisina an-tanan-droa ary andrasana ary ny antsipiriany kely iray hafa - ny antsipiriany momba ny fampiharana manokana dia nesorina. Rehefa dinihina tokoa, ny zava-drehetra dia mbola ampiasaina amin'ny tena tetikasa miasa. Noho izany, ny lahatsoratra dia sketch sy famaritana ny foto-kevitra ankapobeny, tsy misy hafa. Manantena aho fa ampy ny antsipiriany hahatakarana ny sary ankapobeny.
Ny hevitra ankapobeny dia "mizara sy mandresy, manafina ary manana"
Ny hevitra dia mahazatra - schema mitokana ho an'ny latabatra, schema mitokana ho an'ny asa voatahiry.
Ny mpanjifa dia tsy manana fidirana mivantana amin'ny angon-drakitra. Ny hany azon'ny mpanjifa atao dia ny miantso ny fiasa voatahiry ary ny fanodinana ny valiny voaray.
anjara asa
CREATE ROLE store;
CREATE ROLE sys_functions;
CREATE ROLE loc_audit_functions;
CREATE ROLE service_functions;
CREATE ROLE business_functions;
tetika
Rafitra fitahirizana latabatra
Tabilao kendrena izay manatanteraka sampana lohahevitra.
CREATE SCHEMA store AUTHORIZATION store ;
Diagram fiasan'ny rafitra
Ny fiasan'ny rafitra, indrindra amin'ny fanovana latabatra firaketana.
CREATE SCHEMA sys_functions AUTHORIZATION sys_functions ;
Rafitra fanaraha-maso eo an-toerana
Asa sy latabatra hampiharana ny fanaraha-maso eo an-toerana ny fanatanterahana ny asa voatahiry sy ny fanovana ny latabatra kendrena.
CREATE SCHEMA loc_audit_functions AUTHORIZATION loc_audit_functions;
Serivisy fiasan'ny serivisy
Functions ho an'ny serivisy sy ny fiasa DML.
CREATE SCHEMA service_functions AUTHORIZATION service_functions;
Business function diagram
Functions ho an'ny asa fandraharahana farany antsoin'ny mpanjifa.
CREATE SCHEMA business_functions AUTHORIZATION business_functions;
Zon'ny fidirana
anjara- DBA manana fidirana feno amin'ny skema rehetra (misaraka amin'ny andraikitry ny DB Owner).
CREATE ROLE dba_role;
GRANT store TO dba_role;
GRANT sys_functions TO dba_role;
GRANT loc_audit_functions TO dba_role;
GRANT service_functions TO dba_role;
GRANT business_functions TO dba_role;
anjara- USER manana ny tombontsoa hampihatra ao amin'ny kisary business_functions.
CREATE ROLE user_role;
Tombontsoa eo anelanelan'ny tetika
GRANT
Satria ny fiasa rehetra dia noforonina miaraka amin'ny toetra FAMPIANARANA FIANARANA torolalana ilaina ATAOVY NY ASA REHETRA… AMIN'NY besinimaro;
REVOKE EXECUTE ON ALL FUNCTION IN SCHEMA sys_functions FROM public ;
REVOKE EXECUTE ON ALL FUNCTION IN SCHEMA loc_audit_functions FROM public ;
REVOKE EXECUTE ON ALL FUNCTION IN SCHEMA service_functions FROM public ;
REVOKE EXECUTE ON ALL FUNCTION IN SCHEMA business_functions FROM public ;
GRANT USAGE ON SCHEMA sys_functions TO dba_role ;
GRANT EXECUTE ON ALL FUNCTIONS IN SCHEMA sys_functions TO dba_role ;
GRANT USAGE ON SCHEMA loc_audit_functions TO dba_role ;
GRANT EXECUTE ON ALL FUNCTIONS IN SCHEMA loc_audit_functions TO dba_role ;
GRANT USAGE ON SCHEMA service_functions TO dba_role ;
GRANT EXECUTE ON ALL FUNCTIONS IN SCHEMA service_functions TO dba_role ;
GRANT USAGE ON SCHEMA business_functions TO dba_role ;
GRANT EXECUTE ON ALL FUNCTIONS IN SCHEMA business_functions TO dba_role ;
GRANT EXECUTE ON ALL FUNCTIONS IN SCHEMA business_functions TO user_role ;
GRANT ALL PRIVILEGES ON SCHEMA store TO GROUP business_functions ;
GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA store TO business_functions ;
GRANT USAGE ON ALL SEQUENCES IN SCHEMA store TO business_functions ;
Noho izany dia vonona ny schema database. Afaka manomboka mameno ny angona ianao.
Tabilao kendrena
Ny famoronana latabatra dia tsy misy dikany. Tsy misy endri-javatra manokana, afa-tsy ny nanapa-kevitra ny tsy hampiasa SERIAL ary mamorona filaharana mazava. Plus, mazava ho azy, ny fampiasana ambony indrindra ny toromarika
COMMENT ON ...Hevitra ho an'ny всех zavatra, tsy an-kanavaka.
Fanamarinana eo an-toerana
Mba hanoratana ny fanatanterahana ny asa voatahiry sy ny fiovana amin'ny latabatra kendrena dia ampiasaina ny latabatra fanaraha-maso eo an-toerana, izay ahitana, ankoatry ny zavatra hafa, ny antsipirian'ny fifandraisana amin'ny mpanjifa, ny mari-pamantarana ny antsoina hoe module, ary ny tena sandan'ny fampidirana sy Output parameters amin'ny endrika JSON.
System functions
Natao ho an'ny firaketana fanovana amin'ny tabilao kendrena. Izy ireo dia trigger functions.
Template - fiasan'ny rafitra
---------------------------------------------------------
-- INSERT
CREATE OR REPLACE FUNCTION sys_functions.table_insert_log ()
RETURNS TRIGGER AS $$
BEGIN
PERFORM loc_audit_functions.make_log( ' '||'table' , 'insert' , json_build_object('id', NEW.id) );
RETURN NULL ;
END
$$ LANGUAGE plpgsql SECURITY DEFINER;
CREATE TRIGGER table_after_insert AFTER INSERT ON storage.table FOR EACH ROW EXECUTE PROCEDURE sys_functions.table_insert_log();
---------------------------------------------------------
-- UPDATE
CREATE OR REPLACE FUNCTION sys_functions.table_update_log ()
RETURNS TRIGGER AS $$
BEGIN
IF OLD.column != NEW.column
THEN
PERFORM loc_audit_functions.make_log( ' '||'table' , 'update' , json_build_object('OLD.column', OLD.column , 'NEW.column' , NEW.column ) );
END IF ;
RETURN NULL ;
END
$$ LANGUAGE plpgsql SECURITY DEFINER;
CREATE TRIGGER table_after_update AFTER UPDATE ON storage.table FOR EACH ROW EXECUTE PROCEDURE sys_functions.table_update_log ();
---------------------------------------------------------
-- DELETE
CREATE OR REPLACE FUNCTION sys_functions.table_delete_log ()
RETURNS TRIGGER AS $$
BEGIN
PERFORM loc_audit_functions.make_log( ' '||'table' , 'delete' , json_build_object('id', OLD.id ) );
RETURN NULL ;
END
$$ LANGUAGE plpgsql SECURITY DEFINER;
CREATE TRIGGER table_after_delete AFTER DELETE ON storage.table FOR EACH ROW EXECUTE PROCEDURE sys_functions.table_delete_log ();Asa fanompoana
Natao hampiharana asa fanompoana sy DML amin'ny latabatra kendrena.
Template - asa fanompoana
--INSERT
--RETURN id OF NEW ROW
CREATE OR REPLACE FUNCTION service_functions.table_insert ( new_column store.table.column%TYPE )
RETURNS integer AS $$
DECLARE
new_id integer ;
BEGIN
-- Generate new id
new_id = nextval('store.table.seq');
-- Insert into table
INSERT INTO store.table
(
id ,
column
)
VALUES
(
new_id ,
new_column
);
RETURN new_id ;
END
$$ LANGUAGE plpgsql SECURITY DEFINER;
--DELETE
--RETURN ROW NUMBERS DELETED
CREATE OR REPLACE FUNCTION service_functions.table_delete ( current_id integer )
RETURNS integer AS $$
DECLARE
rows_count integer ;
BEGIN
DELETE FROM store.table WHERE id = current_id;
GET DIAGNOSTICS rows_count = ROW_COUNT;
RETURN rows_count ;
END
$$ LANGUAGE plpgsql SECURITY DEFINER;
-- UPDATE DETAILS
-- RETURN ROW NUMBERS UPDATED
CREATE OR REPLACE FUNCTION service_functions.table_update_column
(
current_id integer
,new_column store.table.column%TYPE
)
RETURNS integer AS $$
DECLARE
rows_count integer ;
BEGIN
UPDATE store.table
SET
column = new_column
WHERE id = current_id;
GET DIAGNOSTICS rows_count = ROW_COUNT;
RETURN rows_count ;
END
$$ LANGUAGE plpgsql SECURITY DEFINER;Asa fandraharahana
Natao ho an'ny asa fandraharahana farany antsoin'ny mpanjifa. Miverina foana izy ireo - JSON. Mba hisakanana sy hanoratana ny lesoka amin'ny famonoana, ampiasao ny sakana afa-tsy.
Template - asa fandraharahana
CREATE OR REPLACE FUNCTION business_functions.business_function_template(
--Input parameters
)
RETURNS JSON AS $$
DECLARE
------------------------
--for exception catching
error_message text ;
error_json json ;
result json ;
------------------------
BEGIN
--LOGGING
PERFORM loc_audit_functions.make_log
(
'business_function_template',
'STARTED',
json_build_object
(
--IN Parameters
)
);
PERFORM business_functions.notice('business_function_template');
--START BUSINESS PART
--END BUSINESS PART
-- SUCCESFULLY RESULT
PERFORM business_functions.notice('result');
PERFORM business_functions.notice(result);
PERFORM loc_audit_functions.make_log
(
'business_function_template',
'FINISHED',
json_build_object( 'result',result )
);
RETURN result ;
----------------------------------------------------------------------------------------------------------
-- EXCEPTION CATCHING
EXCEPTION
WHEN OTHERS THEN
PERFORM loc_audit_functions.make_log
(
'business_function_template',
'STARTED',
json_build_object
(
--IN Parameters
) , TRUE );
PERFORM loc_audit_functions.make_log
(
'business_function_template',
' ERROR',
json_build_object('SQLSTATE',SQLSTATE ), TRUE
);
PERFORM loc_audit_functions.make_log
(
'business_function_template',
' ERROR',
json_build_object('SQLERRM',SQLERRM ), TRUE
);
GET STACKED DIAGNOSTICS error_message = RETURNED_SQLSTATE ;
PERFORM loc_audit_functions.make_log
(
'business_function_template',
' ERROR-RETURNED_SQLSTATE',json_build_object('RETURNED_SQLSTATE',error_message ), TRUE );
GET STACKED DIAGNOSTICS error_message = COLUMN_NAME ;
PERFORM loc_audit_functions.make_log
(
'business_function_template',
' ERROR-COLUMN_NAME',
json_build_object('COLUMN_NAME',error_message ), TRUE );
GET STACKED DIAGNOSTICS error_message = CONSTRAINT_NAME ;
PERFORM loc_audit_functions.make_log
(
'business_function_template',
' ERROR-CONSTRAINT_NAME',
json_build_object('CONSTRAINT_NAME',error_message ), TRUE );
GET STACKED DIAGNOSTICS error_message = PG_DATATYPE_NAME ;
PERFORM loc_audit_functions.make_log
(
'business_function_template',
' ERROR-PG_DATATYPE_NAME',
json_build_object('PG_DATATYPE_NAME',error_message ), TRUE );
GET STACKED DIAGNOSTICS error_message = MESSAGE_TEXT ;
PERFORM loc_audit_functions.make_log
(
'business_function_template',
' ERROR-MESSAGE_TEXT',json_build_object('MESSAGE_TEXT',error_message ), TRUE );
GET STACKED DIAGNOSTICS error_message = SCHEMA_NAME ;
PERFORM loc_audit_functions.make_log
(s
'business_function_template',
' ERROR-SCHEMA_NAME',json_build_object('SCHEMA_NAME',error_message ), TRUE );
GET STACKED DIAGNOSTICS error_message = PG_EXCEPTION_DETAIL ;
PERFORM loc_audit_functions.make_log
(
'business_function_template',
' ERROR-PG_EXCEPTION_DETAIL',
json_build_object('PG_EXCEPTION_DETAIL',error_message ), TRUE );
GET STACKED DIAGNOSTICS error_message = PG_EXCEPTION_HINT ;
PERFORM loc_audit_functions.make_log
(
'business_function_template',
' ERROR-PG_EXCEPTION_HINT',json_build_object('PG_EXCEPTION_HINT',error_message ), TRUE );
GET STACKED DIAGNOSTICS error_message = PG_EXCEPTION_CONTEXT ;
PERFORM loc_audit_functions.make_log
(
'business_function_template',
' ERROR-PG_EXCEPTION_CONTEXT',json_build_object('PG_EXCEPTION_CONTEXT',error_message ), TRUE );
RAISE WARNING 'ALARM: %' , SQLERRM ;
SELECT json_build_object
(
'isError' , TRUE ,
'errorMsg' , SQLERRM
) INTO error_json ;
RETURN error_json ;
END
$$ LANGUAGE plpgsql SECURITY DEFINER;Ny vokany
Mba hamaritana ny sary ankapobeny dia heveriko fa ampy izany. Raha misy olona liana amin'ny antsipiriany sy ny valiny, manorata fanehoan-kevitra, dia ho faly aho hanampy fanampiny mikasika ny sary.
Sal
Fampidirana fahadisoana tsotra - karazana paramètre fampidirana
-[ RECORD 1 ]-
date_trunc | 2020-08-19 13:15:46
id | 1072
usename | emp1
log_module | addKD
log_module_hash | 0b4c1529a89af3ddf6af3821dc790e8a
status | STARTED
jsonb_pretty | {
| "dko": {
| "id": 4,
| "type": "Type1",
| "title": "CREATED BY addKD",
| "Weight": 10,
| "Tr": "300",
| "reduction": 10,
| "isTrud": "TRUE",
| "description": "decription",
| "lowerTr": "100",
| "measurement": "measurement1",
| "methodology": "m1",
| "passportUrl": "files",
| "upperTr": "200",
| "weightingFactor": 100.123,
| "actualTrValue": null,
| "upperTrCalcNumber": "120"
| },
| "CardId": 3
| }
-[ RECORD 2 ]-
date_trunc | 2020-08-19 13:15:46
id | 1073
usename | emp1
log_module | addKD
log_module_hash | 0b4c1529a89af3ddf6af3821dc790e8a
status | ERROR
jsonb_pretty | {
| "SQLSTATE": "22P02"
| }
-[ RECORD 3 ]-
date_trunc | 2020-08-19 13:15:46
id | 1074
usename | emp1
log_module | addKD
log_module_hash | 0b4c1529a89af3ddf6af3821dc790e8a
status | ERROR
jsonb_pretty | {
| "SQLERRM": "invalid input syntax for type numeric: "null""
| }
-[ RECORD 4 ]-
date_trunc | 2020-08-19 13:15:46
id | 1075
usename | emp1
log_module | addKD
log_module_hash | 0b4c1529a89af3ddf6af3821dc790e8a
status | ERROR-RETURNED_SQLSTATE
jsonb_pretty | {
| "RETURNED_SQLSTATE": "22P02"
| }
-[ RECORD 5 ]-
date_trunc | 2020-08-19 13:15:46
id | 1076
usename | emp1
log_module | addKD
log_module_hash | 0b4c1529a89af3ddf6af3821dc790e8a
status | ERROR-COLUMN_NAME
jsonb_pretty | {
| "COLUMN_NAME": ""
| }
-[ RECORD 6 ]-
date_trunc | 2020-08-19 13:15:46
id | 1077
usename | emp1
log_module | addKD
log_module_hash | 0b4c1529a89af3ddf6af3821dc790e8a
status | ERROR-CONSTRAINT_NAME
jsonb_pretty | {
| "CONSTRAINT_NAME": ""
| }
-[ RECORD 7 ]-
date_trunc | 2020-08-19 13:15:46
id | 1078
usename | emp1
log_module | addKD
log_module_hash | 0b4c1529a89af3ddf6af3821dc790e8a
status | ERROR-PG_DATATYPE_NAME
jsonb_pretty | {
| "PG_DATATYPE_NAME": ""
| }
-[ RECORD 8 ]-
date_trunc | 2020-08-19 13:15:46
id | 1079
usename | emp1
log_module | addKD
log_module_hash | 0b4c1529a89af3ddf6af3821dc790e8a
status | ERROR-MESSAGE_TEXT
jsonb_pretty | {
| "MESSAGE_TEXT": "invalid input syntax for type numeric: "null""
| }
-[ RECORD 9 ]-
date_trunc | 2020-08-19 13:15:46
id | 1080
usename | emp1
log_module | addKD
log_module_hash | 0b4c1529a89af3ddf6af3821dc790e8a
status | ERROR-SCHEMA_NAME
jsonb_pretty | {
| "SCHEMA_NAME": ""
| }
-[ RECORD 10 ]-
date_trunc | 2020-08-19 13:15:46
id | 1081
usename | emp1
log_module | addKD
log_module_hash | 0b4c1529a89af3ddf6af3821dc790e8a
status | ERROR-PG_EXCEPTION_DETAIL
jsonb_pretty | {
| "PG_EXCEPTION_DETAIL": ""
| }
-[ RECORD 11 ]-
date_trunc | 2020-08-19 13:15:46
id | 1082
usename | emp1
log_module | addKD
log_module_hash | 0b4c1529a89af3ddf6af3821dc790e8a
status | ERROR-PG_EXCEPTION_HINT
jsonb_pretty | {
| "PG_EXCEPTION_HINT": ""
| }
-[ RECORD 12 ]-
date_trunc | 2020-08-19 13:15:46
id | 1083
usename | emp1
log_module | addKD
log_module_hash | 0b4c1529a89af3ddf6af3821dc790e8a
status | ERROR-PG_EXCEPTION_CONTEXT
jsonb_pretty | {
usename | emp1
log_module | addKD
log_module_hash | 0b4c1529a89af3ddf6af3821dc790e8a
status | ERROR-MESSAGE_TEXT
jsonb_pretty | {
| "MESSAGE_TEXT": "invalid input syntax for type numeric: "null""
| }
Source: www.habr.com