nukak
Version:
flexible and efficient ORM, with declarative JSON syntax and smart type-safety
78 lines • 11.1 kB
JavaScript
import { getKeys, hasKeys } from './object.util.js';
export function flatObject(obj, pre) {
return getKeys(obj).reduce((acc, key) => flatObjectEntry(acc, key, obj[key], typeof obj[key] === 'object' ? '' : pre), {});
}
function flatObjectEntry(map, key, val, pre) {
const prefix = pre ? `${pre}.${key}` : key;
return typeof val === 'object'
? getKeys(val).reduce((acc, prop) => flatObjectEntry(acc, prop, val[prop], prefix), map)
: { ...map, [prefix]: val };
}
export function unflatObjects(objects) {
if (!Array.isArray(objects) || !objects.length) {
return objects;
}
const attrsPaths = obtainAttrsPaths(objects[0]);
if (!hasKeys(attrsPaths)) {
return objects;
}
return objects.map((row) => {
const dto = {};
for (const col in row) {
if (row[col] === null) {
continue;
}
const attrPath = attrsPaths[col];
if (attrPath) {
const target = attrPath.slice(0, -1).reduce((acc, key) => {
if (typeof acc[key] !== 'object') {
acc[key] = {};
}
return acc[key];
}, dto);
target[attrPath[attrPath.length - 1]] = row[col];
}
else {
dto[col] = row[col];
}
}
return dto;
});
}
export function obtainAttrsPaths(row) {
return getKeys(row).reduce((acc, col) => {
// Support both dot notation (legacy) and underscore notation (new)
if (col.includes('.')) {
acc[col] = col.split('.');
}
else if (col.includes('_') && col !== col.toUpperCase()) {
// Convert underscore to dot notation for nested paths
// Skip all-uppercase (like UPPER_CASE constants)
acc[col] = col.split('_');
}
return acc;
}, {});
}
/**
* Escape a SQL identifier (table name, column name, etc.)
* @param val the identifier to escape
* @param escapeIdChar the escape character to use (e.g. ` or ")
* @param forbidQualified whether to forbid qualified identifiers (containing dots)
* @param addDot whether to add a dot suffix
*/
export function escapeSqlId(val, escapeIdChar = '`', forbidQualified, addDot) {
if (!val) {
return '';
}
if (!forbidQualified && val.includes('.')) {
const result = val
.split('.')
.map((it) => escapeSqlId(it, escapeIdChar, true))
.join('.');
return addDot ? result + '.' : result;
}
const escaped = escapeIdChar + val.replace(new RegExp(escapeIdChar, 'g'), escapeIdChar + escapeIdChar) + escapeIdChar;
const suffix = addDot ? '.' : '';
return escaped + suffix;
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"sql.util.js","sourceRoot":"","sources":["../../src/util/sql.util.ts"],"names":[],"mappings":"AACA,OAAO,EAAE,OAAO,EAAE,OAAO,EAAE,MAAM,kBAAkB,CAAC;AAEpD,MAAM,UAAU,UAAU,CAAI,GAAM,EAAE,GAAY;IAChD,OAAO,OAAO,CAAC,GAAG,CAAC,CAAC,MAAM,CACxB,CAAC,GAAG,EAAE,GAAG,EAAE,EAAE,CAAC,eAAe,CAAC,GAAG,EAAE,GAAG,EAAE,GAAG,CAAC,GAAa,CAAC,EAAE,OAAO,GAAG,CAAC,GAAa,CAAC,KAAK,QAAQ,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC,GAAG,CAAC,EAC9G,EAAO,CACR,CAAC;AACJ,CAAC;AAED,SAAS,eAAe,CAAI,GAAM,EAAE,GAAW,EAAE,GAAQ,EAAE,GAAY;IACrE,MAAM,MAAM,GAAG,GAAG,CAAC,CAAC,CAAC,GAAG,GAAG,IAAI,GAAG,EAAE,CAAC,CAAC,CAAC,GAAG,CAAC;IAC3C,OAAO,OAAO,GAAG,KAAK,QAAQ;QAC5B,CAAC,CAAC,OAAO,CAAC,GAAG,CAAC,CAAC,MAAM,CAAC,CAAC,GAAG,EAAE,IAAI,EAAE,EAAE,CAAC,eAAe,CAAC,GAAG,EAAE,IAAI,EAAE,GAAG,CAAC,IAAI,CAAC,EAAE,MAAM,CAAC,EAAE,GAAG,CAAC;QACxF,CAAC,CAAC,EAAE,GAAG,GAAG,EAAE,CAAC,MAAM,CAAC,EAAE,GAAG,EAAE,CAAC;AAChC,CAAC;AAED,MAAM,UAAU,aAAa,CAAI,OAAY;IAC3C,IAAI,CAAC,KAAK,CAAC,OAAO,CAAC,OAAO,CAAC,IAAI,CAAC,OAAO,CAAC,MAAM,EAAE,CAAC;QAC/C,OAAO,OAAO,CAAC;IACjB,CAAC;IAED,MAAM,UAAU,GAAG,gBAAgB,CAAC,OAAO,CAAC,CAAC,CAAC,CAAC,CAAC;IAEhD,IAAI,CAAC,OAAO,CAAC,UAAU,CAAC,EAAE,CAAC;QACzB,OAAO,OAAO,CAAC;IACjB,CAAC;IAED,OAAO,OAAO,CAAC,GAAG,CAAC,CAAC,GAAG,EAAE,EAAE;QACzB,MAAM,GAAG,GAAG,EAAO,CAAC;QAEpB,KAAK,MAAM,GAAG,IAAI,GAAG,EAAE,CAAC;YACtB,IAAI,GAAG,CAAC,GAAG,CAAC,KAAK,IAAI,EAAE,CAAC;gBACtB,SAAS;YACX,CAAC;YACD,MAAM,QAAQ,GAAG,UAAU,CAAC,GAAG,CAAC,CAAC;YACjC,IAAI,QAAQ,EAAE,CAAC;gBACb,MAAM,MAAM,GAAG,QAAQ,CAAC,KAAK,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC,CAAC,MAAM,CACzC,CAAC,GAAG,EAAE,GAAG,EAAE,EAAE;oBACX,IAAI,OAAO,GAAG,CAAC,GAAa,CAAC,KAAK,QAAQ,EAAE,CAAC;wBAC3C,GAAG,CAAC,GAAa,CAAC,GAAG,EAAmB,CAAC;oBAC3C,CAAC;oBACD,OAAO,GAAG,CAAC,GAAa,CAAC,CAAC;gBAC5B,CAAC,EACD,GAA0B,CAC3B,CAAC;gBACF,MAAM,CAAC,QAAQ,CAAC,QAAQ,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,GAAG,GAAG,CAAC,GAAG,CAAC,CAAC;YACnD,CAAC;iBAAM,CAAC;gBACN,GAAG,CAAC,GAAG,CAAC,GAAG,GAAG,CAAC,GAAG,CAAC,CAAC;YACtB,CAAC;QACH,CAAC;QAED,OAAO,GAAG,CAAC;IACb,CAAC,CAAC,CAAC;AACL,CAAC;AAED,MAAM,UAAU,gBAAgB,CAAI,GAAM;IACxC,OAAO,OAAO,CAAC,GAAG,CAAC,CAAC,MAAM,CACxB,CAAC,GAAG,EAAE,GAAG,EAAE,EAAE;QACX,mEAAmE;QACnE,IAAI,GAAG,CAAC,QAAQ,CAAC,GAAG,CAAC,EAAE,CAAC;YACtB,GAAG,CAAC,GAAG,CAAC,GAAG,GAAG,CAAC,KAAK,CAAC,GAAG,CAAC,CAAC;QAC5B,CAAC;aAAM,IAAI,GAAG,CAAC,QAAQ,CAAC,GAAG,CAAC,IAAI,GAAG,KAAK,GAAG,CAAC,WAAW,EAAE,EAAE,CAAC;YAC1D,sDAAsD;YACtD,iDAAiD;YACjD,GAAG,CAAC,GAAG,CAAC,GAAG,GAAG,CAAC,KAAK,CAAC,GAAG,CAAC,CAAC;QAC5B,CAAC;QACD,OAAO,GAAG,CAAC;IACb,CAAC,EACD,EAA+B,CAChC,CAAC;AACJ,CAAC;AAED;;;;;;GAMG;AACH,MAAM,UAAU,WAAW,CACzB,GAAW,EACX,eAA0B,GAAG,EAC7B,eAAyB,EACzB,MAAgB;IAEhB,IAAI,CAAC,GAAG,EAAE,CAAC;QACT,OAAO,EAAE,CAAC;IACZ,CAAC;IAED,IAAI,CAAC,eAAe,IAAI,GAAG,CAAC,QAAQ,CAAC,GAAG,CAAC,EAAE,CAAC;QAC1C,MAAM,MAAM,GAAG,GAAG;aACf,KAAK,CAAC,GAAG,CAAC;aACV,GAAG,CAAC,CAAC,EAAE,EAAE,EAAE,CAAC,WAAW,CAAC,EAAE,EAAE,YAAY,EAAE,IAAI,CAAC,CAAC;aAChD,IAAI,CAAC,GAAG,CAAC,CAAC;QACb,OAAO,MAAM,CAAC,CAAC,CAAC,MAAM,GAAG,GAAG,CAAC,CAAC,CAAC,MAAM,CAAC;IACxC,CAAC;IAED,MAAM,OAAO,GAAG,YAAY,GAAG,GAAG,CAAC,OAAO,CAAC,IAAI,MAAM,CAAC,YAAY,EAAE,GAAG,CAAC,EAAE,YAAY,GAAG,YAAY,CAAC,GAAG,YAAY,CAAC;IAEtH,MAAM,MAAM,GAAG,MAAM,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,EAAE,CAAC;IAEjC,OAAO,OAAO,GAAG,MAAM,CAAC;AAC1B,CAAC","sourcesContent":["import type { FieldValue, Key } from 'nukak/type';\nimport { getKeys, hasKeys } from './object.util.js';\n\nexport function flatObject<E>(obj: E, pre?: string): E {\n  return getKeys(obj).reduce(\n    (acc, key) => flatObjectEntry(acc, key, obj[key as Key<E>], typeof obj[key as Key<E>] === 'object' ? '' : pre),\n    {} as E,\n  );\n}\n\nfunction flatObjectEntry<E>(map: E, key: string, val: any, pre?: string): E {\n  const prefix = pre ? `${pre}.${key}` : key;\n  return typeof val === 'object'\n    ? getKeys(val).reduce((acc, prop) => flatObjectEntry(acc, prop, val[prop], prefix), map)\n    : { ...map, [prefix]: val };\n}\n\nexport function unflatObjects<T>(objects: T[]): T[] {\n  if (!Array.isArray(objects) || !objects.length) {\n    return objects;\n  }\n\n  const attrsPaths = obtainAttrsPaths(objects[0]);\n\n  if (!hasKeys(attrsPaths)) {\n    return objects;\n  }\n\n  return objects.map((row) => {\n    const dto = {} as T;\n\n    for (const col in row) {\n      if (row[col] === null) {\n        continue;\n      }\n      const attrPath = attrsPaths[col];\n      if (attrPath) {\n        const target = attrPath.slice(0, -1).reduce(\n          (acc, key) => {\n            if (typeof acc[key as Key<T>] !== 'object') {\n              acc[key as Key<T>] = {} as FieldValue<T>;\n            }\n            return acc[key as Key<T>];\n          },\n          dto as Record<string, any>,\n        );\n        target[attrPath[attrPath.length - 1]] = row[col];\n      } else {\n        dto[col] = row[col];\n      }\n    }\n\n    return dto;\n  });\n}\n\nexport function obtainAttrsPaths<T>(row: T) {\n  return getKeys(row).reduce(\n    (acc, col) => {\n      // Support both dot notation (legacy) and underscore notation (new)\n      if (col.includes('.')) {\n        acc[col] = col.split('.');\n      } else if (col.includes('_') && col !== col.toUpperCase()) {\n        // Convert underscore to dot notation for nested paths\n        // Skip all-uppercase (like UPPER_CASE constants)\n        acc[col] = col.split('_');\n      }\n      return acc;\n    },\n    {} as { [k: string]: string[] },\n  );\n}\n\n/**\n * Escape a SQL identifier (table name, column name, etc.)\n * @param val the identifier to escape\n * @param escapeIdChar the escape character to use (e.g. ` or \")\n * @param forbidQualified whether to forbid qualified identifiers (containing dots)\n * @param addDot whether to add a dot suffix\n */\nexport function escapeSqlId(\n  val: string,\n  escapeIdChar: '`' | '\"' = '`',\n  forbidQualified?: boolean,\n  addDot?: boolean,\n): string {\n  if (!val) {\n    return '';\n  }\n\n  if (!forbidQualified && val.includes('.')) {\n    const result = val\n      .split('.')\n      .map((it) => escapeSqlId(it, escapeIdChar, true))\n      .join('.');\n    return addDot ? result + '.' : result;\n  }\n\n  const escaped = escapeIdChar + val.replace(new RegExp(escapeIdChar, 'g'), escapeIdChar + escapeIdChar) + escapeIdChar;\n\n  const suffix = addDot ? '.' : '';\n\n  return escaped + suffix;\n}\n"]}