Merged in task/dspace-cris-2023_02_x/DSC-2038 (pull request DSpace#2800)

[DSC-2038]

Approved-by: Giuseppe Digilio

Author: Simone-Ramundi

config/config.example.yml

@@ -187,6 +187,8 @@ submission:
     metadataDetailsList:
       - label: 'Document type'
         name: dc.type
+  # Minimum number of characters required before performing a lookup.
+  minChars: 3
 
 #  Default Language in which the UI will be rendered if the user's browser language is not an active language
 defaultLanguage: en

src/app/shared/form/builder/parsers/onebox-field-parser.ts

@@ -1,4 +1,5 @@
 import { DynamicSelectModel, DynamicSelectModelConfig } from '@ng-dynamic-forms/core';
+import { environment } from '../../../../../environments/environment';
 
 import { FieldParser } from './field-parser';
 import {
@@ -82,6 +83,7 @@ export class OneboxFieldParser extends FieldParser {
       const oneboxModelConfig: DsDynamicOneboxModelConfig = this.initModel(null, label);
       this.setVocabularyOptions(oneboxModelConfig, this.parserOptions.collectionUUID);
       oneboxModelConfig.submissionScope = this.parserOptions.submissionScope;
+      oneboxModelConfig.minChars = environment.submission.minChars;
       this.setValues(oneboxModelConfig, fieldValue, true);
 
       return new DynamicOneboxModel(oneboxModelConfig);

src/app/shared/form/builder/parsers/tag-field-parser.ts

@@ -2,6 +2,8 @@ import { FieldParser } from './field-parser';
 import { FormFieldMetadataValueObject } from '../models/form-field-metadata-value.model';
 import { DynamicTagModel, DynamicTagModelConfig } from '../ds-dynamic-form-ui/models/tag/dynamic-tag.model';
 import {DynamicFormControlLayout} from '@ng-dynamic-forms/core';
+import { environment } from '../../../../../environments/environment';
+
 export class TagFieldParser extends FieldParser {
   public modelFactory(fieldValue?: FormFieldMetadataValueObject | any, label?: boolean): any {
     let clsTag: DynamicFormControlLayout;
@@ -15,6 +17,7 @@ export class TagFieldParser extends FieldParser {
       && this.configData.selectableMetadata[0].controlledVocabulary.length > 0) {
       this.setVocabularyOptions(tagModelConfig, this.parserOptions.collectionUUID);
     }
+    tagModelConfig.minChars = environment.submission.minChars;
     this.setValues(tagModelConfig, fieldValue, null, true);
     tagModelConfig.placeholder = 'Enter the Keywords';
     const tagModel = new DynamicTagModel(tagModelConfig, clsTag);

src/config/default-app-config.ts

@@ -293,7 +293,9 @@ export class DefaultAppConfig implements AppConfig {
     dropdownHintEnabled: {
       // NOTE: list of metadata fields for which the dropdown hint is enabled
       // eg. 'dc.access.rights': true,
-    }
+    },
+    // Minimum number of characters required before performing a lookup.
+    minChars: 3,
   };
 
   // Default Language in which the UI will be rendered if the user's browser language is not an active language

src/config/submission-config.interface.ts

@@ -49,4 +49,5 @@ export interface SubmissionConfig extends Config {
   icons: IconsConfig;
   detectDuplicate: DetectDuplicateConfig;
   dropdownHintEnabled?: SubmissionDropdownHintEnabled;
+  minChars?: number;
 }