UIQM-724 do not group together subfields during linking

CHANGELOG.md

@@ -41,6 +41,7 @@
 * [UIQM-711](https://issues.folio.org/browse/UIQM-711) Update `validateFixedFieldPositions` to display all 008 field errors instead of one in Bibliographic records.
 * [UIQM-712](https://issues.folio.org/browse/UIQM-712) In field 007 for Projected Graphic type: change the `MfS` field type to `Byte` to allow only 1 character to be entered.
 * [UIQM-715](https://issues.folio.org/browse/UIQM-715) Reuse existing ids for fields after saving a record to avoid re-rendering and be able to focus on a field by ref.
+* [UIQM-724](https://issues.folio.org/browse/UIQM-724) Do not group together subfields during linking.
 
 ## [8.0.1] (https://github.com/folio-org/ui-quick-marc/tree/v8.0.1) (2024-04-18)
 

src/QuickMarcEditor/utils.js

@@ -6,7 +6,6 @@ import omit from 'lodash/omit';
 import compact from 'lodash/compact';
 import isString from 'lodash/isString';
 import isNumber from 'lodash/isNumber';
-import toPairs from 'lodash/toPairs';
 import flatten from 'lodash/flatten';
 import flow from 'lodash/flow';
 import assignWith from 'lodash/assignWith';
@@ -38,6 +37,7 @@ import { SUBFIELD_TYPES } from './QuickMarcEditorRows/BytesField';
 import getMaterialCharsFieldConfig from './QuickMarcEditorRows/MaterialCharsField/getMaterialCharsFieldConfig';
 import getPhysDescriptionFieldConfig from './QuickMarcEditorRows/PhysDescriptionField/getPhysDescriptionFieldConfig';
 import { FixedFieldFactory } from './QuickMarcEditorRows/FixedField';
+import { MarcFieldContent } from '../common';
 import {
   MARC_TYPES,
   ERROR_TYPES,
@@ -70,6 +70,9 @@ export const isContentRow = (recordRow, marcType) => {
     || isControlNumberRow(recordRow));
 };
 
+// returns an object with subfields values. order of subfields is not kept
+// '$a valueA1 $a value A2 $b valueB' -> { '$a': ['valueA1', 'valueA2'], '$b': ['valueB'] }
+
 export const getContentSubfieldValue = (content = '') => {
   return content.split(/\$/)
     .filter(str => str.length > 0)
@@ -1008,47 +1011,42 @@ export const getCorrespondingMarcTag = (records) => {
 };
 
 export const groupSubfields = (field, authorityControlledSubfields = []) => {
-  const subfields = toPairs(getContentSubfieldValue(field.content));
+  const subfields = new MarcFieldContent(field.content);
 
   return subfields.reduce((groups, subfield) => {
-    const isControlled = authorityControlledSubfields.includes(subfield[0].replace('$', ''));
-    const isNum = /\$\d/.test(subfield[0]);
-    const isZero = /\$0/.test(subfield[0]);
-    const isNine = /\$9/.test(subfield[0]);
-
-    const fieldContent = subfield[1].reduce((content, value) => [content, `${subfield[0]} ${value}`].join(' ').trimStart(), '');
+    const isControlled = authorityControlledSubfields.includes(subfield.code.replace('$', ''));
+    const isNum = /\$\d/.test(subfield.code);
+    const isZero = /\$0/.test(subfield.code);
+    const isNine = /\$9/.test(subfield.code);
 
-    const formattedSubfield = {
-      content: fieldContent,
-      code: subfield[0],
-    };
+    const subfieldCodeAndValue = `${subfield.code} ${subfield.value}`;
 
     if (isControlled) {
-      groups.controlled = [groups.controlled, formattedSubfield.content].join(' ').trim();
+      groups.controlled = [groups.controlled, subfieldCodeAndValue].join(' ').trim();
 
       return groups;
     }
 
     if (!isControlled && !isNum) {
-      groups[UNCONTROLLED_ALPHA] = [groups[UNCONTROLLED_ALPHA], formattedSubfield.content].join(' ').trim();
+      groups[UNCONTROLLED_ALPHA] = [groups[UNCONTROLLED_ALPHA], subfieldCodeAndValue].join(' ').trim();
 
       return groups;
     }
 
     if (isZero) {
-      groups.zeroSubfield = [groups.zeroSubfield, formattedSubfield.content].join(' ').trim();
+      groups.zeroSubfield = [groups.zeroSubfield, subfieldCodeAndValue].join(' ').trim();
 
       return groups;
     }
 
     if (isNine) {
-      groups.nineSubfield = [groups.nineSubfield, formattedSubfield.content].join(' ').trim();
+      groups.nineSubfield = [groups.nineSubfield, subfieldCodeAndValue].join(' ').trim();
 
       return groups;
     }
 
     if (isNum) {
-      groups[UNCONTROLLED_NUMBER] = [groups[UNCONTROLLED_NUMBER], formattedSubfield.content].join(' ').trim();
+      groups[UNCONTROLLED_NUMBER] = [groups[UNCONTROLLED_NUMBER], subfieldCodeAndValue].join(' ').trim();
 
       return groups;
     }

src/common/entities/MarcFieldContent/MarcFieldContent.js

@@ -0,0 +1,96 @@
+// returns an array of subfields in the same order as in content string
+// '$a valueA1 $a value A2 $b valueB' -> [{ '$a': 'valueA1' }, { '$a': 'valueA2' }, { '$b': 'valueB' }]
+
+export const getContentSubfieldValueArr = (content = '') => {
+  return content.split(/\$/)
+    .filter(str => str.length > 0)
+    .reduce((acc, str) => {
+      if (!str) {
+        return acc;
+      }
+
+      const key = `$${str[0]}`;
+      const value = str.substring(2).trim();
+
+      return [...acc, { code: key, value }];
+    }, []);
+};
+
+const reduceArr = (arr) => {
+  return arr.reduce((acc, cur) => {
+    const { code, value } = cur;
+    const reducedValues = acc[code];
+
+    if (reducedValues) {
+      return {
+        ...acc,
+        [code]: [...reducedValues, value],
+      };
+    }
+
+    return {
+      ...acc,
+      [code]: [value],
+    };
+  }, {});
+};
+
+export class MarcFieldContent {
+  constructor(content) {
+    this.content = content || '';
+
+    this.subfieldsArr = getContentSubfieldValueArr(this.content);
+
+    // Proxy allows to define generic property getters
+    return new Proxy(this, this);
+  }
+
+  map(callback) {
+    return this.subfieldsArr.map(callback);
+  }
+
+  reduce(...args) {
+    return this.subfieldsArr.reduce(...args);
+  }
+
+  forEach(callback) {
+    return this.subfieldsArr.forEach(callback);
+  }
+
+  join() {
+    return this.subfieldsArr.reduce((acc, cur) => {
+      return `${acc} ${cur.code} ${cur.value}`;
+    }, '').trim();
+  }
+
+  append(code, value) {
+    this.subfieldsArr.push({ code, value });
+
+    return this; // return this to be able to chain together method calls
+  }
+
+  prepend(code, value) {
+    this.subfieldsArr.unshift({ code, value });
+
+    return this;
+  }
+
+  removeByCode(code) {
+    this.subfieldsArr = this.subfieldsArr.filter(subfield => subfield.code !== code);
+
+    return this;
+  }
+
+  findAllByCode(code) {
+    return this.subfieldsArr.filter(subfield => subfield.code === code);
+  }
+
+  get(target, property) {
+    // should be able to get array of subfields by calling marcFieldContent['$a']
+    if (property.match(/\$\w$/)) {
+      return reduceArr(target.findAllByCode(property))[property];
+    }
+
+    return target[property];
+  }
+}

src/common/entities/MarcFieldContent/MarcFieldContent.test.js

@@ -0,0 +1,95 @@
+import { MarcFieldContent } from './MarcFieldContent';
+
+describe('MarcFieldContent', () => {
+  const content = '$a a1 $b b1 $b b2 $a a2';
+
+  let marcFieldContent = null;
+
+  beforeEach(() => {
+    marcFieldContent = new MarcFieldContent(content);
+  });
+
+  describe('when calling `forEach`', () => {
+    it('should call the callback with each subfield', () => {
+      const cb = jest.fn();
+
+      marcFieldContent.forEach(cb);
+
+      expect(cb).toHaveBeenCalledTimes(4);
+      expect(cb.mock.calls[0][0]).toEqual({ code: '$a', value: 'a1' });
+      expect(cb.mock.calls[1][0]).toEqual({ code: '$b', value: 'b1' });
+      expect(cb.mock.calls[2][0]).toEqual({ code: '$b', value: 'b2' });
+      expect(cb.mock.calls[3][0]).toEqual({ code: '$a', value: 'a2' });
+    });
+  });
+
+  describe('when calling `map`', () => {
+    it('should call the callback with each subfield', () => {
+      const cb = jest.fn();
+
+      marcFieldContent.map(cb);
+
+      expect(cb).toHaveBeenCalledTimes(4);
+      expect(cb.mock.calls[0][0]).toEqual({ code: '$a', value: 'a1' });
+      expect(cb.mock.calls[1][0]).toEqual({ code: '$b', value: 'b1' });
+      expect(cb.mock.calls[2][0]).toEqual({ code: '$b', value: 'b2' });
+      expect(cb.mock.calls[3][0]).toEqual({ code: '$a', value: 'a2' });
+    });
+  });
+
+  describe('when calling `reduce`', () => {
+    it('should call the callback with each subfield', () => {
+      const cb = jest.fn().mockImplementation((acc, cur) => [...acc, cur]);
+
+      marcFieldContent.reduce(cb, []);
+
+      expect(cb).toHaveBeenCalledTimes(4);
+      expect(cb.mock.calls[0][1]).toEqual({ code: '$a', value: 'a1' });
+      expect(cb.mock.calls[1][1]).toEqual({ code: '$b', value: 'b1' });
+      expect(cb.mock.calls[2][1]).toEqual({ code: '$b', value: 'b2' });
+      expect(cb.mock.calls[3][1]).toEqual({ code: '$a', value: 'a2' });
+    });
+  });
+
+  describe('when calling `join`', () => {
+    it('should transform subfields array back to a string', () => {
+      expect(marcFieldContent.join()).toEqual(content);
+    });
+  });
+
+  describe('when calling `append`', () => {
+    it('should add a new subfield to the end', () => {
+      marcFieldContent.append('$a', 'a3');
+
+      expect(marcFieldContent.join()).toEqual(`${content} $a a3`);
+    });
+  });
+
+  describe('when calling `prepend`', () => {
+    it('should add a new subfield to the beginning', () => {
+      marcFieldContent.prepend('$a', 'a3');
+
+      expect(marcFieldContent.join()).toEqual(`$a a3 ${content}`);
+    });
+  });
+
+  describe('when calling `removeByCode`', () => {
+    it('should remove all subfields by code', () => {
+      marcFieldContent.removeByCode('$a');
+
+      expect(marcFieldContent.join()).toEqual('$b b1 $b b2');
+    });
+  });
+
+  describe('when calling `findAllByCode`', () => {
+    it('should return all subfields by code', () => {
+      expect(marcFieldContent.findAllByCode('$a')).toEqual([{ code: '$a', value: 'a1' }, { code: '$a', value: 'a2' }]);
+    });
+  });
+
+  describe('when using a subfield getter', () => {
+    it('should return an array of subfields values', () => {
+      expect(marcFieldContent.$a).toEqual(['a1', 'a2']);
+    });
+  });
+});

src/common/entities/MarcFieldContent/index.js

@@ -0,0 +1 @@
+export * from './MarcFieldContent';

src/common/entities/index.js

@@ -0,0 +1 @@
+export * from './MarcFieldContent';

src/common/index.js

@@ -0,0 +1,2 @@
+export * from './constants';
+export * from './entities';