关键词：
this.Shopify = this.Shopify || ;
this.Shopify.theme = this.Shopify.theme || ;
this.Shopify.theme.product = (function (exports)
'use strict';
/**
* Find a match in the project JSON (using a ID number) and return the variant (as an Object)
* @param Object product Product JSON object
* @param Number value Accepts Number (e.g. 6908023078973)
* @returns Object The variant object once a match has been successful. Otherwise null will be return
*/
function getVariantFromId(product, value)
_validateProductStructure(product);
if (typeof value !== 'number')
throw new TypeError(value + ' is not a Number.');
var result = product.variants.filter(function(variant)
return variant.id === value;
);
return result[0] || null;
/**
* Convert the Object (with 'name' and 'value' keys) into an Array of values, then find a match & return the variant (as an Object)
* @param Object product Product JSON object
* @param Object collection Object with 'name' and 'value' keys (e.g. [ name: "Size", value: "36" , name: "Color", value: "Black" ])
* @returns Object || null The variant object once a match has been successful. Otherwise null will be returned
*/
function getVariantFromSerializedArray(product, collection)
_validateProductStructure(product);
// If value is an array of options
var optionArray = _createOptionArrayFromOptionCollection(product, collection);
return getVariantFromOptionArray(product, optionArray);
/**
* Find a match in the project JSON (using Array with option values) and return the variant (as an Object)
* @param Object product Product JSON object
* @param Array options List of submitted values (e.g. ['36', 'Black'])
* @returns Object || null The variant object once a match has been successful. Otherwise null will be returned
*/
function getVariantFromOptionArray(product, options)
_validateProductStructure(product);
_validateOptionsArray(options);
var result = product.variants.filter(function(variant)
return options.every(function(option, index)
return variant.options[index] === option;
);
);
return result[0] || null;
/**
* Creates an array of selected options from the object
* Loops through the project.options and check if the "option name" exist (product.options.name) and matches the target
* @param Object product Product JSON object
* @param Array collection Array of object (e.g. [ name: "Size", value: "36" , name: "Color", value: "Black" ])
* @returns Array The result of the matched values. (e.g. ['36', 'Black'])
*/
function _createOptionArrayFromOptionCollection(product, collection)
_validateProductStructure(product);
_validateSerializedArray(collection);
var optionArray = [];
collection.forEach(function(option)
for (var i = 0; i < product.options.length; i++)
if (product.options[i].name.toLowerCase() === option.name.toLowerCase())
optionArray[i] = option.value;
break;
);
return optionArray;
/**
* Check if the product data is a valid JS object
* Error will be thrown if type is invalid
* @param Array product Product JSON object
*/
function _validateProductStructure(product)
if (typeof product !== 'object')
throw new TypeError(product + 'is not an object.');
if (Object.keys(product).length === 0 && product.constructor === Object)
throw new Error(product + 'is empty.');
/**
* Validate the structure of the array
* It must be formatted like jQuery's serializeArray()
* @param Array collection Array of object [ name: "Size", value: "36" , name: "Color", value: "Black" ]
*/
function _validateSerializedArray(collection)
if (!Array.isArray(collection))
throw new TypeError(collection + 'is not an array.');
if (collection.length === 0)
throw new Error(collection + 'is empty.');
if (collection[0].hasOwnProperty('name'))
if (typeof collection[0].name !== 'string')
throw new TypeError(
'Invalid value type passed for name of option ' +
collection[0].name +
'. Value should be string.'
);
else
throw new Error(collection[0] + 'does not contain name key.');
/**
* Validate the structure of the array
* It must be formatted as list of values
* @param Array collection Array of object (e.g. ['36', 'Black'])
*/
function _validateOptionsArray(options)
if (Array.isArray(options) && typeof options[0] === 'object')
throw new Error(options + 'is not a valid array of options.');
exports.getVariantFromId = getVariantFromId;
exports.getVariantFromSerializedArray = getVariantFromSerializedArray;
exports.getVariantFromOptionArray = getVariantFromOptionArray;
return exports;
());
getVariantFromId(product, value)
Find a variant with a matching ID in the project JSON and return it.
product: Product JSON object. Usually it is the Product object generated from Liquid. Note: The JSON generated from Liquid is different from the conventional json filter due to some properties not being exposed.
value: Product ID (e.g. 6908023078973)
getVariantFromSerializedArray(product, collection)
Find a variant which matches a collection of name and values (like what is returned by jQuery's serializeArray() method) and return it.
product: Product JSON object. Usually it is the Product object generated from Liquid. Note: The JSON generated from Liquid is different from the conventional json filter due to some properties not being exposed.
collection: Object with 'name' and 'value' keys
[
name: 'Size',
value: '36'
,
name: 'Color',
value: 'Black'
];
getVariantFromOptionArray(product, options)
Find a matching variant using an array of option values and return it.
product: Product JSON object. Usually it is the Product object generated from Liquid. Note: The JSON generated from Liquid is different from the conventional json filter due to some properties not being exposed.
options: List of submitted values
['36', 'Black'];
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