Form grammar#

formDeclaration
    : annotation* accessModifier? FORM identifier formModifier* formBase? formDeclarationWithHeader
    | annotation* accessModifier? FORM identifier formModifier* formBase? formDeclarationWithoutHeader
      // @define @name_fields(identifier) @role(member_owner) @role(source_owner_alias_scope:form) @role(source_owner_member:ui) @kind(layout:form) @symbol(kind=global) @scope(level=2)
    ;

formFieldType
    : formControlTypeReference
    | typeExpression
    | SELECT
    ; // open-ended control type

formSourceExpression
    : qualifiedIdentifier arguments postfixSuffix*
    | identifierName arguments postfixSuffix*
    | qualifiedIdentifier
    | identifierName
    | queryExpression
    | querySubqueryExpression
    | literal
    ;

buttonDeclaration, buttonEvent, buttonInstanceDeclaration, buttonMember, buttonMenuDeclaration, buttonMenuMember, buttonMenuOptionDeclaration, buttonMenuOptionMember
buttonMenuSeparatorDeclaration, buttonParameterClause, buttonProperty, buttonPropertyKey, buttonTemplateDeclaration, formBase, formBodyMember, formBodySection
formControlTypeReference, formDeclaration, formDeclarationWithHeader, formDeclarationWithoutHeader, formEvent, formField, formFieldFrom, formFieldModifier
formFieldProperties, formFieldProperty, formFieldPropertyBlock, formFieldPropertyKey, formFieldType, formHeader, formHeaderProperty, formInlineBodyItem
formInlineControlField, formInlineHeaderProperty, formInlineHeaderValue, formInlineItem, formLayoutSection, formMember, formModifier, formSection
formSectionMember, formSourceExpression, formStateDeclaration, formToolbarSection, layoutConfig, layoutProperty

form VendorForm: Vendor {
  body: {
    vendor_id: Text from Vendor.vendor_id;
    vendor_name: Text from Vendor.vendor_name;
  }
}

form InvoiceForm: Invoice {
  section posting {
    invoice_total: MoneyInput from Invoice.invoice_total;
  }

  button Post {
    on click {
      post_invoice(invoice_id);
    }
  }
}

form VendorEditor {
  body: {
    section review {
      selected_vendor_id: VendorId;
      vendor_name: Text from Vendor.vendor_name;

      on change {
        refresh_preview();
      }

      layout: {
        columns: 2;
      };

      button Refresh {
        on click {
          refresh_preview();
        }
      }
    }
  }
}

form VendorSources {
  body: {
    vendor: Select from find_vendors(true);
    vendor_ids: DataGrid from from vendor in vendors select vendor.vendor_id;
    status: Select from ["draft", "active"];
  }
}

form VendorForm readonly : BaseVendorForm {
  title: "Vendor";
} {
  state {
    selected_vendor_id: VendorId;
  }

  body: {
    @label("Vendor")
    required vendor_name: TextInput from Vendor.vendor_name {
      label: "Vendor name";
      on change {
        validate_vendor();
      }
      display format {
        uppercase: true;
      }
    }

    customer_group: from CustomerMaster;
    customer_count: Number from count_customers();
  }

  layout: {
    columns: 2;
  };
}

form VendorActions {
  button ActionButton<T>(label: string) {
    label: label;
    on click {
      run_action();
    }
  }

  toolbar {
    save: PrimaryButton() {
      label: "Save";
      menu {
        option save_and_close {
          label: "Save and close";
          on click {
            save_and_close();
          }
        }

        separator;
      }
    }
  }
}