infoalloggi-monorepo/apps/infoalloggi/kanel.config.js

const { makeKyselyHook } = require("kanel-kysely");
const { makePgTsGenerator } = require("kanel");
const ignoredTables = ["schema_migrations"];

/**
 * Allows for injection of custom types from the mapping of `table.field`
 * @param {import("kanel").TypeMap} mappings 
 * @returns {import("kanel").PreRenderHook}
 */
const specificTypes = (mappings) => {
  /** @type {import("kanel").PreRenderHook} */
  return async (outputAcc, instantiatedConfig) => {
    const output = { ...outputAcc };

    for (const path of Object.keys(output)) {
      const file = outputAcc[path];
      const declarations = file.declarations.map((decl) => {
        const declaration = { ...decl };

        if (declaration.declarationType === "interface") {
          for (const field of declaration.properties) {
            const key = `${declaration.name}.${field.name}`;
            if (mappings[key]) {
              field.typeName = mappings[key].name;
              declaration.typeImports = [
                ...(declaration.typeImports || []),
                ...mappings[key].typeImports,
              ];
            }
          }
        }
        return declaration;
      });

      output[path] = {
        ...file,
        declarations,
      };
    }

    return output;
  };
}

/** @type {import('kanel').Config} */
module.exports = {
  connection: {
    host: "localhost",
    user: "postgres",
    database: "postgres",
    password: "rootpost",
    port: 5433,
  },
  filter: (pgTable) => !ignoredTables.includes(pgTable.name),
  outputPath: "./src/schemas",
  generators: [makePgTsGenerator({
    customTypeMap: {
      "pg_catalog.tsvector": "string",
      "pg_catalog.bpchar": "string",
      'pg_catalog.numeric': 'number',
      //"pg_catalog.json": "string",

    },
    preRenderHooks: [

      specificTypes({
        "Annunci.caratteristiche": {
          name: "Caratteristiche",
          typeImports: [{ name: "Caratteristiche", path: "src/utils/kanel-types.ts", importAsType: true, isAbsolute: false, isDefault: false }],
        },
      }),
      makeKyselyHook(),
    ],

  }),
  ],

  preDeleteOutputFolder: true,

  typescriptConfig: {
    enumStyle: "enum",
  },
};