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Product Option Exceptions

You can use exceptions to make specific combinations of product options that the customers won’t be able to select. For example, if you sell a T-shirt in various colors and sizes, you can make a certain color unavailable for a specific size.

Exceptions are somewhat similar to option combinations—they both include the combination object with variants of different options.

Important

Only the options that have variants can be a part of an exception. This includes options of the following types: Checkbox, Select box, and Radiogroup.

There are two types of exceptions:

  • Forbidden—customers won’t be able to select the combinations of option variants specified in the combination object.
  • Allowed—customers will be able to select ONLY the combinations of option variants specified in the combination object.

The type of the exception is determined by the product that the exception is associated with. A product has a field called exceptions_type, that can have either A (allowed) or F (forbidden) as its value.

Note

F (forbidden) is the default value of the exceptions_type field of the product.

List Exceptions of a Product

To get all the exceptions of a specific product, send a GET request to /api/exceptions/?product_id=:id. For example:

GET /api/exceptions/?product_id=12

If the request is successful, you’ll receive HTTP/1.1 200 OK and JSON with all the exceptions of the specified product:

[
 {
  "exception_id": "1",
  "product_id": "12",
  "combination": {
       "3": "12",
       "4": "17",
       "17": "-1"
  }
 },
 {
  "exception_id": "4",
  "product_id": "12",
  "combination": {
        "3": "13",
        "4": "17",
        "17": "-2"
  }
 },
 {
  "exception_id": "5",
  "product_id": "12",
  "combination": {
        "3": "16",
        "4": "-1",
        "17": "-2"
  }
 }
]

Get a Specific Exception

To get the details of a specific exception, send a GET request to /api/exceptions/<exception_id>. For example:

GET /api/exceptions/1

If the request is successful, you’ll receive HTTP/1.1 200 OK and JSON with the details of the exception.

Exception Details

The fields below represent various details of an exception.

Note

The CS-Cart/Multi-Vendor REST API always accepts and returns data as strings and arrays/objects. The Values column in the table merely shows what kind of data you can expect in the fields.

Field Values Description
exception_id integer A unique identifier of the exception.
product_id integer A unique identifier of the product that the exception is associated with.
combination object The options and their variants that comprise the exception.

Negative Values as Option Variants

Option variants of the exceptions can have a negative value in the combination object:

  • -1—any variant of this option can be selected.
  • -2—no variant of this option can be selected.

For example:

{
 "exception_id": "5",
 "product_id": "12",
 "combination": {
       "3": "16",
       "4": "-1",
       "17": "-2"
 }
}

This is an exception for the product with product_id=12. Let’s assume that:

  • the product we’re talking about is a T-shirt;
  • the exception is of the Forbidden type;
  • option 3 is Size, and variant 16 is XXL;
  • option 4 is Color;
  • option 17 is a checkbox.

Then the checkbox will be grayed out and won’t be considered when a customer selects the XXL size for any color.

Create an Exception

To create an exception, send a POST request to /api/exceptions/.

Pass the fields with the exception details in the HTTP request body in accordance with the passed Content-Type. Required fields are marked with *:

  • product_id*—the unique identifier of the product that the exception is associated with.

  • combination—the options and variants that comprise the exception.

    Important

    The options you specify in the combination object should have the Checkbox, Select box, or Radiogroup type and be available for the product.

Example JSON:

{
 "product_id": "12",
 "combination": {
       "3": "-1",
       "4": "19",
       "17": "61"
 }
}

This request creates a new exception for the product with product_id=12. This exception describes the following combination of variants:

  • Any variant of option 3
  • Variant 19 of option 4
  • Variant 61 of option 17

If the option exception is created successfully, you will receive HTTP/1.1 201 Created and the exception ID in the response:

{
 "exception_id": "10"
}

If the exception couldn’t be created, you will receive HTTP/1.1 400 Bad Request.

Update an Exception

To update an existing exception, send the PUT request to /api/exceptions/<exception_id>/. For example:

PUT /api/exceptions/10

Pass the fields with exception details in the HTTP request body in accordance with the passed Content-Type. None of the fields are required.

Example JSON:

{
 "combination": {
       "3": "-1",
       "4": "18",
       "17": "60"
 }
}

This request changes the option variants of the exception.

Important

When you update the combination object, specify the variants of all the options that comprise the exception. If you don’t include an option in the object, it won’t be a part of the exception.

Delete an Exception

To delete an exception, send the DELETE request to /api/exceptions/<exception_id>?product_id=:id.

Note

Product ID is specified to check if the user has permission to delete this exception.

DELETE /api/exceptions/10?product_id=12

This request deletes the specified exception of the product.

Possible responses:

  • HTTP/1.1 204 No Content—the exception has been deleted successfully.
  • HTTP/1.1 400 Bad Request—the exception couldn’t be deleted.
  • HTTP/1.1 404 Not Found—the exception doesn’t exist.

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