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Refactor: Data.prototype.access. Thanks to @RubyLouvre and @gibson042. Closes #1167

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This commit is contained in:
Rick Waldron 2013-02-13 12:14:20 -05:00
parent b734666f4d
commit 93043d002a
2 changed files with 51 additions and 24 deletions
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41
src/data.js
View File

@ -108,24 +108,33 @@ Data.prototype = {
cache : cache[ key ];
},
access: function( owner, key, value ) {
if ( value === undefined && (key && typeof key !== "object") ) {
// Assume this is a request to read the cached data
// In cases where either:
//
// 1. No key was specified
// 2. A string key was specified, but no value provided
//
// Take the "read" path and allow the get method to determine
// which value to return, respectively either:
//
// 1. The entire cache object
// 2. The data stored at the key
//
if ( key === undefined ||
((key && typeof key === "string") && value === undefined) ) {
return this.get( owner, key );
} else {
// If only an owner was specified, return the entire
// cache object.
if ( key === undefined ) {
return this.get( owner );
}
// Allow setting or extending (existing objects) with an
// object of properties, or a key and val
this.set( owner, key, value );
return value !== undefined ? value : key;
}
// Otherwise, this is a read request.
return this.get( owner, key );
// [*]When the key is not a string, or both a key and value
// are specified, set or extend (existing objects) with either:
//
// 1. An object of properties
// 2. A key and value
//
this.set( owner, key, value );
// Since the "set" path can have two possible entry points
// return the expected data based on which path was taken[*]
return value !== undefined ? value : key;
},
remove: function( owner, key ) {
var i, l, name,

34
test/unit/data.js
View File

@ -7,29 +7,47 @@ test("expando", function(){
});
test( "jQuery.data & removeData, expected returns", function() {
expect(2);
expect(4);
var elem = document.body;
equal(
jQuery.data( document.body, "hello", "world" ), "world",
jQuery.data( elem, "hello", "world" ), "world",
"jQuery.data( elem, key, value ) returns value"
);
equal(
jQuery.removeData( document.body, "hello" ), undefined,
jQuery.data( elem, "hello" ), "world",
"jQuery.data( elem, key ) returns value"
);
deepEqual(
jQuery.data( elem, { goodnight: "moon" }), { goodnight: "moon" },
"jQuery.data( elem, key, obj ) returns obj"
);
equal(
jQuery.removeData( elem, "hello" ), undefined,
"jQuery.removeData( elem, key, value ) returns undefined"
);
});
test( "jQuery._data & _removeData, expected returns", function() {
expect(2);
expect(4);
var elem = document.body;
equal(
jQuery._data( document.body, "hello", "world" ), "world",
"jQuery.data( elem, key, value ) returns value"
jQuery._data( elem, "hello", "world" ), "world",
"jQuery._data( elem, key, value ) returns value"
);
equal(
jQuery._removeData( document.body, "hello" ), undefined,
"jQuery.removeData( elem, key, value ) returns undefined"
jQuery._data( elem, "hello" ), "world",
"jQuery._data( elem, key ) returns value"
);
deepEqual(
jQuery._data( elem, { goodnight: "moon" }), { goodnight: "moon" },
"jQuery._data( elem, obj ) returns obj"
);
equal(
jQuery._removeData( elem, "hello" ), undefined,
"jQuery._removeData( elem, key, value ) returns undefined"
);
});