Utilities: Extra fields

Create new fields to extend standard MiniShop3 models.

Purpose

Add custom fields to data models without editing source code. Fields are stored in the database and appear automatically in the interface.

Supported models

Model	Description
msProductData	Product data
msVendor	Vendor
msOrder	Order
msOrderAddress	Delivery address
msCategory	Category

Creating a field

Step 1: Select model

Choose a model from the dropdown at the top of the page.

Step 2: Add field

Click Add field and fill the form.

Field parameters

Basic

Parameter	Description	Required
Key	Unique field name (Latin, snake_case)	Yes
Label	Display name	Yes
Description	User hint	No
Active	Field in use	Yes

Field key

The key must be unique within the model. Use Latin letters and underscores. Examples: wholesale_price, external_id, custom_field.

Widget type (xtype)

Type	Description	Use
textfield	Text field	Strings, SKUs
numberfield	Number field	Prices, quantities
textarea	Multiline field	Descriptions
xcheckbox	Checkbox	Yes/No
ms3-combo-vendor	Vendor picker	Link to vendor
ms3-combo-autocomplete	Autocomplete	Pick from list
ms3-combo-options	Option picker	Product variants

Database type (dbtype)

Type	Description	Example values
varchar	Variable-length string	Text up to 255 chars
text	Long text	Descriptions, HTML
int	Integer	IDs, quantities
decimal	Decimal	Prices with cents
tinyint	Small integer (0–255)	Flags, ratings
datetime	Date and time	2024-01-15 12:30:00
timestamp	Timestamp	Unix timestamp
json	JSON data	Arrays, objects

Precision

For varchar and decimal:

• varchar — max string length (default 255)
• decimal — format 10,2 means 10 digits total, 2 after decimal

PHP type (phptype)

Type	Description
string	String
integer	Integer
float	Float
boolean	Boolean
json	JSON (auto encode/decode)
datetime	DateTime object
timestamp	Unix timestamp

Default value

Type	Description
NULL	Empty value
CURRENT_TIMESTAMP	Current time (for datetime)
USER_DEFINED	Set manually
NONE	No default

Indexing

Type	Description	When to use
NONE	No index	Rarely used fields
INDEX	Regular index	Search and sort fields
UNIQUE	Unique index	Unique values
FULLTEXT	Full-text index	Text search

Field examples

Wholesale price

Key: wholesale_price
Label: Wholesale price
xtype: numberfield
dbtype: decimal
Precision: 12,2
phptype: float
Default: NULL
Index: NONE

External ID (ERP)

Key: external_id
Label: ERP ID
xtype: textfield
dbtype: varchar
Precision: 50
phptype: string
Default: NULL
Index: UNIQUE

Delivery lead time

Key: delivery_days
Label: Delivery time (days)
xtype: numberfield
dbtype: int
phptype: integer
Default: USER_DEFINED → 3
Index: NONE

Extra attributes (JSON)

Key: extra_attributes
Label: Extra attributes
xtype: textarea
dbtype: json
phptype: json
Default: NULL
Index: NONE

Editing a field

Click a row in the table to open the edit dialog.

Limitations

Some parameters cannot change after creation:

• Field key
• Database type (dbtype)

To change these, delete the field and create it again.

Deleting a field

1. Click delete on the row
2. Confirm in the dialog

Warning

Deleting a field permanently removes:

• Field definition from the schema
• Column from the database table
• All data for that field on all records

Use in code

Getting a value

// Get product
$product = $modx->getObject(\MiniShop3\Model\msProduct::class, $id);

// Get product data
$data = $product->getOne('Data');

// Get extra field value
$wholesalePrice = $data->get('wholesale_price');

Saving a value

$data = $product->getOne('Data');
$data->set('wholesale_price', 999.99);
$data->save();

In snippets (Fenom)

{$wholesale_price}
{if $wholesale_price > 0}
    <span class="wholesale">Wholesale: {$wholesale_price | number_format : 0}</span>
{/if}

API endpoints

Model field list

GET /api/mgr/extra-fields?class=MiniShop3\Model\msProductData

Create field

POST /api/mgr/extra-fields

Request body:

{
  "class": "MiniShop3\\Model\\msProductData",
  "key": "wholesale_price",
  "label": "Wholesale price",
  "xtype": "numberfield",
  "dbtype": "decimal",
  "precision": "12,2",
  "phptype": "float",
  "null": true,
  "default": "NULL",
  "index_type": "NONE",
  "active": true
}

Update field

PUT /api/mgr/extra-fields/{id}

Delete field

DELETE /api/mgr/extra-fields/{id}

Migrations

When a field is created the system automatically:

1. Creates a record in the field configuration table
2. Adds a column to the model table (ALTER TABLE)
3. Creates an index (if specified)

When a field is deleted:

1. Removes the configuration record
2. Drops the column from the database table