payloadcms-import-export-plugin/dist/utilities/getFlattenedFieldKeys.js

A comprehensive Payload CMS plugin that enables seamless import and export of collection data with support for CSV and JSON formats, featuring advanced field mapping, duplicate handling, and batch processing capabilities.

export const getFlattenedFieldKeys = (fields, prefix = '')=>{
    const keys = [];
    fields.forEach((field)=>{
        const fieldHasToCSVFunction = 'custom' in field && typeof field.custom === 'object' && 'plugin-import-export' in field.custom && field.custom['plugin-import-export']?.toCSV;
        if (!('name' in field) || typeof field.name !== 'string' || fieldHasToCSVFunction) {
            return;
        }
        const name = prefix ? `${prefix}_${field.name}` : field.name;
        switch(field.type){
            case 'array':
                {
                    const subKeys = getFlattenedFieldKeys(field.fields, `${name}_0`);
                    keys.push(...subKeys);
                    break;
                }
            case 'blocks':
                field.blocks.forEach((block)=>{
                    const blockKeys = getFlattenedFieldKeys(block.fields, `${name}_0`);
                    keys.push(...blockKeys);
                });
                break;
            case 'collapsible':
            case 'group':
            case 'row':
                keys.push(...getFlattenedFieldKeys(field.fields, name));
                break;
            case 'relationship':
                if (field.hasMany) {
                    if (Array.isArray(field.relationTo)) {
                        // hasMany polymorphic
                        keys.push(`${name}_0_relationTo`, `${name}_0_id`);
                    } else {
                        // hasMany monomorphic
                        keys.push(`${name}_0`);
                    }
                } else {
                    if (Array.isArray(field.relationTo)) {
                        // hasOne polymorphic
                        keys.push(`${name}_relationTo`, `${name}_id`);
                    } else {
                        // hasOne monomorphic
                        keys.push(name);
                    }
                }
                break;
            case 'tabs':
                if (field.tabs) {
                    field.tabs.forEach((tab)=>{
                        if (tab.name) {
                            const tabPrefix = prefix ? `${prefix}_${tab.name}` : tab.name;
                            keys.push(...getFlattenedFieldKeys(tab.fields, tabPrefix));
                        } else {
                            keys.push(...getFlattenedFieldKeys(tab.fields, prefix));
                        }
                    });
                }
                break;
            default:
                if ('hasMany' in field && field.hasMany) {
                    // Push placeholder for first index
                    keys.push(`${name}_0`);
                } else {
                    keys.push(name);
                }
                break;
        }
    });
    return keys;
};

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