{"id":15704867,"url":"https://github.com/marcelolx/nowa","last_synced_at":"2026-03-07T17:03:40.111Z","repository":{"id":115929370,"uuid":"142968815","full_name":"marcelolx/Nowa","owner":"marcelolx","description":"Simple query builder for Delphi, working with enumerators.","archived":false,"fork":false,"pushed_at":"2019-05-29T00:59:06.000Z","size":229,"stargazers_count":7,"open_issues_count":0,"forks_count":1,"subscribers_count":2,"default_branch":"master","last_synced_at":"2025-09-01T20:55:12.290Z","etag":null,"topics":["delphi","pascal","pascal-language","query-builder"],"latest_commit_sha":null,"homepage":"","language":"Pascal","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/marcelolx.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2018-07-31T05:58:25.000Z","updated_at":"2024-07-08T16:04:52.000Z","dependencies_parsed_at":null,"dependency_job_id":"23d6202b-a68d-494a-9c67-ee85e8017172","html_url":"https://github.com/marcelolx/Nowa","commit_stats":{"total_commits":44,"total_committers":1,"mean_commits":44.0,"dds":0.0,"last_synced_commit":"ab35192c08696d188a22a584f9d0666547587014"},"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/marcelolx/Nowa","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/marcelolx%2FNowa","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/marcelolx%2FNowa/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/marcelolx%2FNowa/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/marcelolx%2FNowa/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/marcelolx","download_url":"https://codeload.github.com/marcelolx/Nowa/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/marcelolx%2FNowa/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":273244305,"owners_count":25070958,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-09-02T02:00:09.530Z","response_time":77,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["delphi","pascal","pascal-language","query-builder"],"created_at":"2024-10-03T20:14:09.765Z","updated_at":"2026-03-07T17:03:35.071Z","avatar_url":"https://github.com/marcelolx.png","language":"Pascal","readme":"# Nowa\n\nSimple SQL query builder for Delphi, working with enumerated types.\n\n#### Info:\n* In development.\n\n# How to build queries\n\n1. Do you need one enumerated type.\n\n2. One class (that inherits ```TEnumAbstract\u003cT\u003e``` and implements ```IEnum\u003cT\u003e```) to map the database fields based on the enumerated type.\n\n3. One model that inherits ```TModel\u003cT\u003e``` and implements Set/GetValue functions declared on ```IModel\u003cT\u003e``` that are virtual on base model.\n\n4. Use classes of _NowaImpl.pas_ unit to build the queries.\n \n\nAn Simple select example:\n\n```pascal\nprocedure NowaExample.TestExample;\nvar\n  oIPerson: IModel\u003cTEPerson\u003e;\nbegin\n  oIPerson := TPerson.Create;\n  oIPerson.PrepareModel('', [tepSequential, tepName, tepEmail]);\n\n  TSQLSelect.Create.Ref\n    .Fields([oIPerson.Fields])\n    .From(oIPerson.Table)\n    .Build;\nend;\n```\n\nExample select with InnerJoin:\n\n```pascal\nprocedure NowaExample.TestExampleInnerJoin;\nvar\n  oIPerson: IPerson\u003cTEPerson\u003e;\n  oIMatriculation: IModel\u003cTEMatriculation\u003e;\n  SelectCommand: String;\nbegin\n  oIPerson := TPerson.Create;\n  oIMatriculation := TMatriculation.Create;\n\n  oIPerson.PrepareModel('', []);\n  oIMatriculation.PrepareModel('', []);\n\n  SelectCommand := TSQLSelect.Create.Ref\n    .Fields([oIPerson.Fields, oIMatriculation.Fields])\n    .From(oIPerson.Table)\n    .InnerJoin(\n      TSQLJoin.Create.Ref\n        .Table(oIMatriculation.Table)\n        .\u0026On(\n          TSQLCondition.Create.Ref\n            .LeftTerm(oIMatriculation.Field(temPersonSequential))\n            .Op(opEqual)\n            .RightTerm(oIPerson.Field(tepSequential))\n        )\n    )\n    .Build;\nend;\n```\n\nThe output assigned to ```SelectCommand``` is:\n```\nSELECT PERSON.NR_SEQUENTIAL AS PERSON_SEQUENTIAL,\n      PERSON.FL_NAME AS PERSON_NAME,\n      PERSON.DT_BIRTHDATE AS PERSON_BIRTHDATE,\n      PERSON.TX_EMAIL AS PERSON_EMAIL,\n      PERSON.TX_PASSWORD AS PERSON_PASSWORD,\n      MATRICULATION.NR_SEQUENTIAL AS MATRICULATION_SEQUENTIAL,\n      MATRICULATION.NR_PERSONSEQUENTIAL AS MATRICULATION_PERSONSEQUENTIAL,\n      MATRICULATION.DT_DATE AS MATRICULATION_DATE,\n      MATRICULATION.CD_USER AS PERSON_USER\n FROM TB_PERSON AS PERSON\nINNER JOIN TB_MATRICULATION AS MATRICULATION ON (MATRICULATION.NR_PERSONSEQUENTIAL = PERSON.NR_SEQUENTIAL)\n```\n\n### _There is a lot to implement, but it is this idea that I want to follow._\n\n# Getting Started\n\nA. Create a unit named \"Enumerator.Person\".\n\nB. Create an enumerated TEPerson, see:\n\n```pascal\nunit Enumerator.Person\n\ninterface\n\nuses\n  Enumerator;\n\ntype\n  TEPerson = (tepSequential, tepName, tepBirthDate, tepEmail, tepPassword);\n\nimplementation\n\nend.\n```\n\nC. Create a class who inherit TEnumAbstract and implements IEnum, see the class and function declarations:\n\n```pascal\nunit Enumerator.Person\n\ninterface\n\nuses\n  Enumerator;\n\ntype\n  TEPerson = (tepSequential, tepName, tepBirthDate, tepEmail, tepPassword);\n\n  TEnumPessoa = class(TEnumAbstract\u003cTEPerson\u003e, IEnum\u003cTEPerson\u003e)\n  public\n    function Column(const AEnumeratedField: TEPerson): String; override;\n    function Table: String; override;\n    function TableAlias(const AAlias: String = ''): String; override;\n    function Sequence: String; override;\n    function AllColumns: TArray\u003cTEPerson\u003e; override;\n    function Ref: IEnum\u003cTEPerson\u003e; override;\n  end;\n\nimplementation\n\nend.\n```\n\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmarcelolx%2Fnowa","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmarcelolx%2Fnowa","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmarcelolx%2Fnowa/lists"}