WIP - field types

backend/src/models/field-definition.model.ts

@@ -1,5 +1,49 @@
 import { BaseModel } from './base.model';
 
+export interface FieldOption {
+  label: string;
+  value: string | number | boolean;
+}
+
+export interface ValidationRule {
+  type: 'required' | 'min' | 'max' | 'email' | 'url' | 'pattern' | 'custom';
+  value?: any;
+  message?: string;
+}
+
+export interface UIMetadata {
+  // Display properties
+  placeholder?: string;
+  helpText?: string;
+  
+  // View visibility
+  showOnList?: boolean;
+  showOnDetail?: boolean;
+  showOnEdit?: boolean;
+  sortable?: boolean;
+  
+  // Field type specific options
+  options?: FieldOption[]; // For select, multi-select
+  rows?: number; // For textarea
+  min?: number; // For number, date
+  max?: number; // For number, date
+  step?: number; // For number
+  accept?: string; // For file/image
+  relationDisplayField?: string; // Which field to display for relations
+  
+  // Formatting
+  format?: string; // Date format, number format, etc.
+  prefix?: string; // Currency symbol, etc.
+  suffix?: string;
+  
+  // Validation
+  validationRules?: ValidationRule[];
+  
+  // Advanced
+  dependsOn?: string[]; // Field dependencies
+  computedValue?: string; // Formula for computed fields
+}
+
 export class FieldDefinition extends BaseModel {
   static tableName = 'field_definitions';
 
@@ -19,6 +63,7 @@ export class FieldDefinition extends BaseModel {
   isSystem!: boolean;
   isCustom!: boolean;
   displayOrder!: number;
+  uiMetadata?: UIMetadata;
 
   static relationMappings = {
     objectDefinition: {

backend/src/object/field-mapper.service.ts

@@ -0,0 +1,295 @@
+import { Injectable } from '@nestjs/common';
+import { FieldDefinition } from '../models/field-definition.model';
+
+export interface FieldConfigDTO {
+  id: string;
+  apiName: string;
+  label: string;
+  type: string;
+  placeholder?: string;
+  helpText?: string;
+  defaultValue?: any;
+  isRequired?: boolean;
+  isReadOnly?: boolean;
+  showOnList?: boolean;
+  showOnDetail?: boolean;
+  showOnEdit?: boolean;
+  sortable?: boolean;
+  options?: Array<{ label: string; value: any }>;
+  rows?: number;
+  min?: number;
+  max?: number;
+  step?: number;
+  accept?: string;
+  relationObject?: string;
+  relationDisplayField?: string;
+  format?: string;
+  prefix?: string;
+  suffix?: string;
+  validationRules?: Array<{
+    type: string;
+    value?: any;
+    message?: string;
+  }>;
+  dependsOn?: string[];
+  computedValue?: string;
+}
+
+export interface ObjectDefinitionDTO {
+  id: string;
+  apiName: string;
+  label: string;
+  pluralLabel?: string;
+  description?: string;
+  isSystem: boolean;
+  fields: FieldConfigDTO[];
+}
+
+@Injectable()
+export class FieldMapperService {
+  /**
+   * Convert a field definition from the database to a frontend-friendly FieldConfig
+   */
+  mapFieldToDTO(field: any): FieldConfigDTO {
+    const uiMetadata = field.uiMetadata || {};
+    
+    return {
+      id: field.id,
+      apiName: field.apiName,
+      label: field.label,
+      type: this.mapFieldType(field.type),
+      
+      // Display properties
+      placeholder: uiMetadata.placeholder || field.description,
+      helpText: uiMetadata.helpText || field.description,
+      defaultValue: field.defaultValue,
+      
+      // Validation
+      isRequired: field.isRequired || false,
+      isReadOnly: field.isSystem || uiMetadata.isReadOnly || false,
+      
+      // View visibility
+      showOnList: uiMetadata.showOnList !== false,
+      showOnDetail: uiMetadata.showOnDetail !== false,
+      showOnEdit: uiMetadata.showOnEdit !== false && !field.isSystem,
+      sortable: uiMetadata.sortable !== false,
+      
+      // Field type specific options
+      options: uiMetadata.options,
+      rows: uiMetadata.rows,
+      min: uiMetadata.min,
+      max: uiMetadata.max,
+      step: uiMetadata.step,
+      accept: uiMetadata.accept,
+      relationObject: field.referenceObject,
+      relationDisplayField: uiMetadata.relationDisplayField,
+      
+      // Formatting
+      format: uiMetadata.format,
+      prefix: uiMetadata.prefix,
+      suffix: uiMetadata.suffix,
+      
+      // Validation rules
+      validationRules: this.buildValidationRules(field, uiMetadata),
+      
+      // Advanced
+      dependsOn: uiMetadata.dependsOn,
+      computedValue: uiMetadata.computedValue,
+    };
+  }
+
+  /**
+   * Map database field type to frontend FieldType enum
+   */
+  private mapFieldType(dbType: string): string {
+    const typeMap: Record<string, string> = {
+      'string': 'text',
+      'text': 'textarea',
+      'integer': 'number',
+      'decimal': 'number',
+      'boolean': 'boolean',
+      'date': 'date',
+      'datetime': 'datetime',
+      'time': 'time',
+      'email': 'email',
+      'url': 'url',
+      'phone': 'text',
+      'picklist': 'select',
+      'multipicklist': 'multiSelect',
+      'lookup': 'belongsTo',
+      'master-detail': 'belongsTo',
+      'currency': 'currency',
+      'percent': 'number',
+      'textarea': 'textarea',
+      'richtext': 'markdown',
+      'file': 'file',
+      'image': 'image',
+      'json': 'json',
+    };
+    
+    return typeMap[dbType.toLowerCase()] || 'text';
+  }
+
+  /**
+   * Build validation rules array
+   */
+  private buildValidationRules(field: any, uiMetadata: any): Array<any> {
+    const rules = uiMetadata.validationRules || [];
+    
+    // Add required rule if field is required and not already in rules
+    if (field.isRequired && !rules.some(r => r.type === 'required')) {
+      rules.unshift({
+        type: 'required',
+        message: `${field.label} is required`,
+      });
+    }
+    
+    // Add length validation for string fields
+    if (field.length && field.type === 'string') {
+      rules.push({
+        type: 'max',
+        value: field.length,
+        message: `${field.label} must not exceed ${field.length} characters`,
+      });
+    }
+    
+    // Add email validation
+    if (field.type === 'email' && !rules.some(r => r.type === 'email')) {
+      rules.push({
+        type: 'email',
+        message: `${field.label} must be a valid email address`,
+      });
+    }
+    
+    // Add URL validation
+    if (field.type === 'url' && !rules.some(r => r.type === 'url')) {
+      rules.push({
+        type: 'url',
+        message: `${field.label} must be a valid URL`,
+      });
+    }
+    
+    return rules;
+  }
+
+  /**
+   * Convert object definition with fields to DTO
+   */
+  mapObjectDefinitionToDTO(objectDef: any): ObjectDefinitionDTO {
+    return {
+      id: objectDef.id,
+      apiName: objectDef.apiName,
+      label: objectDef.label,
+      pluralLabel: objectDef.pluralLabel,
+      description: objectDef.description,
+      isSystem: objectDef.isSystem || false,
+      fields: (objectDef.fields || [])
+        .filter((f: any) => f.isActive !== false)
+        .sort((a: any, b: any) => (a.displayOrder || 0) - (b.displayOrder || 0))
+        .map((f: any) => this.mapFieldToDTO(f)),
+    };
+  }
+
+  /**
+   * Generate default UI metadata for a field type
+   */
+  generateDefaultUIMetadata(fieldType: string): any {
+    const defaults: Record<string, any> = {
+      text: {
+        showOnList: true,
+        showOnDetail: true,
+        showOnEdit: true,
+        sortable: true,
+      },
+      textarea: {
+        showOnList: false,
+        showOnDetail: true,
+        showOnEdit: true,
+        sortable: false,
+        rows: 4,
+      },
+      number: {
+        showOnList: true,
+        showOnDetail: true,
+        showOnEdit: true,
+        sortable: true,
+      },
+      currency: {
+        showOnList: true,
+        showOnDetail: true,
+        showOnEdit: true,
+        sortable: true,
+        prefix: '$',
+        step: 0.01,
+      },
+      boolean: {
+        showOnList: true,
+        showOnDetail: true,
+        showOnEdit: true,
+        sortable: true,
+      },
+      date: {
+        showOnList: true,
+        showOnDetail: true,
+        showOnEdit: true,
+        sortable: true,
+        format: 'yyyy-MM-dd',
+      },
+      datetime: {
+        showOnList: false,
+        showOnDetail: true,
+        showOnEdit: true,
+        sortable: true,
+        format: 'yyyy-MM-dd HH:mm:ss',
+      },
+      email: {
+        showOnList: true,
+        showOnDetail: true,
+        showOnEdit: true,
+        sortable: true,
+        validationRules: [{ type: 'email' }],
+      },
+      url: {
+        showOnList: false,
+        showOnDetail: true,
+        showOnEdit: true,
+        sortable: false,
+        validationRules: [{ type: 'url' }],
+      },
+      select: {
+        showOnList: true,
+        showOnDetail: true,
+        showOnEdit: true,
+        sortable: true,
+        options: [],
+      },
+      multiSelect: {
+        showOnList: false,
+        showOnDetail: true,
+        showOnEdit: true,
+        sortable: false,
+        options: [],
+      },
+      image: {
+        showOnList: false,
+        showOnDetail: true,
+        showOnEdit: true,
+        sortable: false,
+        accept: 'image/*',
+      },
+      file: {
+        showOnList: false,
+        showOnDetail: true,
+        showOnEdit: true,
+        sortable: false,
+      },
+    };
+    
+    return defaults[fieldType] || {
+      showOnList: true,
+      showOnDetail: true,
+      showOnEdit: true,
+      sortable: true,
+    };
+  }
+}

backend/src/object/object.module.ts

@@ -3,12 +3,13 @@ import { ObjectService } from './object.service';
 import { RuntimeObjectController } from './runtime-object.controller';
 import { SetupObjectController } from './setup-object.controller';
 import { SchemaManagementService } from './schema-management.service';
+import { FieldMapperService } from './field-mapper.service';
 import { TenantModule } from '../tenant/tenant.module';
 
 @Module({
   imports: [TenantModule],
-  providers: [ObjectService, SchemaManagementService],
+  providers: [ObjectService, SchemaManagementService, FieldMapperService],
   controllers: [RuntimeObjectController, SetupObjectController],
-  exports: [ObjectService, SchemaManagementService],
+  exports: [ObjectService, SchemaManagementService, FieldMapperService],
 })
 export class ObjectModule {}

backend/src/object/setup-object.controller.ts

@@ -7,13 +7,17 @@ import {
   UseGuards,
 } from '@nestjs/common';
 import { ObjectService } from './object.service';
+import { FieldMapperService } from './field-mapper.service';
 import { JwtAuthGuard } from '../auth/jwt-auth.guard';
 import { TenantId } from '../tenant/tenant.decorator';
 
 @Controller('setup/objects')
 @UseGuards(JwtAuthGuard)
 export class SetupObjectController {
-  constructor(private objectService: ObjectService) {}
+  constructor(
+    private objectService: ObjectService,
+    private fieldMapperService: FieldMapperService,
+  ) {}
 
   @Get()
   async getObjectDefinitions(@TenantId() tenantId: string) {
@@ -28,6 +32,18 @@ export class SetupObjectController {
     return this.objectService.getObjectDefinition(tenantId, objectApiName);
   }
 
+  @Get(':objectApiName/ui-config')
+  async getObjectUIConfig(
+    @TenantId() tenantId: string,
+    @Param('objectApiName') objectApiName: string,
+  ) {
+    const objectDef = await this.objectService.getObjectDefinition(
+      tenantId,
+      objectApiName,
+    );
+    return this.fieldMapperService.mapObjectDefinitionToDTO(objectDef);
+  }
+
   @Post()
   async createObjectDefinition(
     @TenantId() tenantId: string,