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Node, React, Headless CMS and Application Framework built on Next.js
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JavaScript
import { fieldAffectsData, fieldShouldBeLocalized, tabHasName } from '../fields/config/types.js';
/**
* Filters localized field data to only include specified locales.
* For non-localized fields, returns all data as-is.
* For localized fields, if selectedLocales is provided, returns only those locales.
* If selectedLocales is not provided and field is localized, returns all locales.
*/ export function filterDataToSelectedLocales({ configBlockReferences, docWithLocales, fields, parentIsLocalized = false, selectedLocales }) {
if (!docWithLocales || typeof docWithLocales !== 'object') {
return docWithLocales;
}
const result = {};
for (const field of fields){
if (fieldAffectsData(field)) {
const fieldIsLocalized = fieldShouldBeLocalized({
field,
parentIsLocalized
});
switch(field.type){
case 'array':
{
if (Array.isArray(docWithLocales[field.name])) {
result[field.name] = docWithLocales[field.name].map((item)=>filterDataToSelectedLocales({
configBlockReferences,
docWithLocales: item,
fields: field.fields,
parentIsLocalized: fieldIsLocalized,
selectedLocales
}));
}
break;
}
case 'blocks':
{
if (field.name in docWithLocales && Array.isArray(docWithLocales[field.name])) {
result[field.name] = docWithLocales[field.name].map((blockData)=>{
let block;
if (configBlockReferences && field.blockReferences) {
for (const blockOrReference of field.blockReferences){
if (typeof blockOrReference === 'string') {
block = configBlockReferences.find((b)=>b.slug === blockData.blockType);
} else {
block = blockOrReference;
}
}
} else if (field.blocks) {
block = field.blocks.find((b)=>b.slug === blockData.blockType);
}
if (block) {
return filterDataToSelectedLocales({
configBlockReferences,
docWithLocales: blockData,
fields: block?.fields || [],
parentIsLocalized: fieldIsLocalized,
selectedLocales
});
}
return blockData;
});
}
break;
}
case 'group':
{
// Named groups create a nested data structure
if (fieldAffectsData(field) && field.name in docWithLocales && typeof docWithLocales[field.name] === 'object') {
result[field.name] = filterDataToSelectedLocales({
configBlockReferences,
docWithLocales: docWithLocales[field.name],
fields: field.fields,
parentIsLocalized: fieldIsLocalized,
selectedLocales
});
} else {
// Unnamed groups pass through the same data level
const nestedResult = filterDataToSelectedLocales({
configBlockReferences,
docWithLocales,
fields: field.fields,
parentIsLocalized,
selectedLocales
});
Object.assign(result, nestedResult);
}
break;
}
default:
{
// For all other data-affecting fields (text, number, select, etc.)
if (field.name in docWithLocales) {
const value = docWithLocales[field.name];
// If the field is localized and has locale data
if (fieldIsLocalized && value && typeof value === 'object' && !Array.isArray(value)) {
// If selectedLocales is provided, filter to only those locales
if (selectedLocales && selectedLocales.length > 0) {
const filtered = {};
for (const locale of selectedLocales){
if (locale in value) {
filtered[locale] = value[locale];
}
}
if (Object.keys(filtered).length > 0) {
result[field.name] = filtered;
}
} else {
// If no selectedLocales, include all locales
result[field.name] = value;
}
} else {
// Non-localized field or non-object value
result[field.name] = value;
}
}
break;
}
}
} else {
// Layout-only fields that don't affect data structure
switch(field.type){
case 'collapsible':
case 'row':
{
// These pass through the same data level
const nestedResult = filterDataToSelectedLocales({
configBlockReferences,
docWithLocales,
fields: field.fields,
parentIsLocalized,
selectedLocales
});
Object.assign(result, nestedResult);
break;
}
case 'tabs':
{
for (const tab of field.tabs){
if (tabHasName(tab)) {
// Named tabs create a nested data structure
if (tab.name in docWithLocales && typeof docWithLocales[tab.name] === 'object') {
result[tab.name] = filterDataToSelectedLocales({
configBlockReferences,
docWithLocales: docWithLocales[tab.name],
fields: tab.fields,
parentIsLocalized,
selectedLocales
});
}
} else {
// Unnamed tabs pass through the same data level
const nestedResult = filterDataToSelectedLocales({
configBlockReferences,
docWithLocales,
fields: tab.fields,
parentIsLocalized,
selectedLocales
});
Object.assign(result, nestedResult);
}
}
break;
}
}
}
}
return result;
}
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