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Added ignore callback support #144

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Added ignore callback support #144

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11 changes: 10 additions & 1 deletion knockout.mapping.js
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Expand Up @@ -24,6 +24,7 @@
var _defaultOptions = {
include: ["_destroy"],
ignore: [],
ignoreCallback: null,
copy: [],
observe: []
};
Expand Down Expand Up @@ -162,6 +163,7 @@

if (arguments.length == 0) throw new Error("When calling ko.mapping.toJS, pass the object you want to convert.");
if (exports.getType(defaultOptions.ignore) !== "array") throw new Error("ko.mapping.defaultOptions().ignore should be an array.");
if (defaultOptions.ignoreCallback != null && exports.getType(defaultOptions.ignoreCallback) !== "function") throw new Error("ko.mapping.defaultOptions().ignoreCallback should be a function.");
if (exports.getType(defaultOptions.include) !== "array") throw new Error("ko.mapping.defaultOptions().include should be an array.");
if (exports.getType(defaultOptions.copy) !== "array") throw new Error("ko.mapping.defaultOptions().copy should be an array.");

Expand Down Expand Up @@ -191,7 +193,8 @@
defaultOptions = {
include: _defaultOptions.include.slice(0),
ignore: _defaultOptions.ignore.slice(0),
copy: _defaultOptions.copy.slice(0)
copy: _defaultOptions.copy.slice(0),
ignoreCallback: _defaultOptions.ignoreCallback
};
};

Expand Down Expand Up @@ -224,11 +227,13 @@
options.include = mergeArrays(otherOptions.include, options.include);
options.copy = mergeArrays(otherOptions.copy, options.copy);
options.observe = mergeArrays(otherOptions.observe, options.observe);
options.ignoreCallback = options.ignoreCallback ? options.ignoreCallback : otherOptions.ignoreCallback;
}
options.ignore = mergeArrays(options.ignore, defaultOptions.ignore);
options.include = mergeArrays(options.include, defaultOptions.include);
options.copy = mergeArrays(options.copy, defaultOptions.copy);
options.observe = mergeArrays(options.observe, defaultOptions.observe);
options.ignoreCallback = options.ignoreCallback ? options.ignoreCallback : defaultOptions.ignoreCallback;

options.mappedProperties = options.mappedProperties || {};
options.copiedProperties = options.copiedProperties || {};
Expand Down Expand Up @@ -450,6 +455,9 @@
return;
}

if (options.ignoreCallback != null && options.ignoreCallback(fullPropertyName)) {
return;
}
if (ko.utils.arrayIndexOf(options.copy, fullPropertyName) != -1) {
mappedRootObject[indexer] = rootObject[indexer];
return;
Expand Down Expand Up @@ -733,6 +741,7 @@
visitPropertiesOrArrayEntries(unwrappedRootObject, function (indexer) {
if (options.ignore && ko.utils.arrayIndexOf(options.ignore, indexer) != -1) return;

if (options.ignoreCallback != null && options.ignoreCallback(indexer)) return;
var propertyValue = unwrappedRootObject[indexer];
options.parentName = getPropertyName(parentName, unwrappedRootObject, indexer);

Expand Down