数组格式:
{
"sku": "NikeL101Black",
"name": "Nike Black shirt -L",
"attribute_set_id": 4,
"price": 30,
"status": 1,
"visibility": 1,
"type_id": "simple",
"created_at": "2015-12-01 23:02:07",
"updated_at": "2015-12-01 23:02:23",
"weight": 2,
"product_links": [],
"options": [],
"tier_prices": [],
"custom_attributes": [
{
"attribute_code": "swatch_image",
"value": "/m/i/miler-uv-mens-t-shirt-black-p7394-6131_zoom_1_1.jpg"
},
{
"attribute_code": "tax_class_id",
"value": "2"
},
{
"attribute_code": "image",
"value": "/m/i/miler-uv-mens-t-shirt-black-p7394-6131_zoom_1_1.jpg"
},
{
"attribute_code": "category_ids",
"value": [
"3"
]
},
{
"attribute_code": "description",
"value": "<p>Cool black nike tshirt</p>"
},
{
"attribute_code": "color",
"value": "7"
},
{
"attribute_code": "required_options",
"value": "0"
},
{
"attribute_code": "size",
"value": "14"
},
{
"attribute_code": "has_options",
"value": "0"
},
{
"attribute_code": "vendor",
"value": "Paxcel Cloth House"
},
{
"attribute_code": "small_image",
"value": "/m/i/miler-uv-mens-t-shirt-black-p7394-6131_zoom_1_1.jpg"
},
{
"attribute_code": "thumbnail",
"value": "/m/i/miler-uv-mens-t-shirt-black-p7394-6131_zoom_1_1.jpg"
},
{
"attribute_code": "url_key",
"value": "nike-red-shirt-s-7"
},
{
"attribute_code": "meta_title",
"value": "Nike Red shirt -S"
},
{
"attribute_code": "meta_keyword",
"value": "Nike Red shirt -S"
},
{
"attribute_code": "meta_description",
"value": "Nike Red shirt -S <p>Cool red noke tshirt</p>"
},
{
"attribute_code": "options_container",
"value": "container2"
}
]
},
如何通过(attribute_code = color和value = 7)AND(attribute_code = size and value = 12)过滤上述类型字典的数组
我尝试使用复合谓词:
NSPredicate *filterChildrenBySize = [NSPredicate predicateWithFormat:@"ANY custom_attributes.attribute_code == size AND custom_attributes.value.integerValue == %@", [[attributes objectForKey:@"sizeInfo"] objectForKey:kAttributeCodeSize]];
Predicate looks like this --> ANY custom_attributes.attribute_code == color AND custom_attributes.value.integerValue == 4
答案 0 :(得分:0)
你必须这样做。检查 filterArray 的 NSLog 。
NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:[jsonString dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingAllowFragments error:nil];
NSLog(@"OUTPUT DATA: %@" ,jsonDict);
NSArray *arrayList = [jsonDict objectForKey:@"custom_attributes"];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"self.attribute_code == 'color' AND self.value == '7'"];
NSArray *filterArray = [arrayList filteredArrayUsingPredicate:predicate];
NSLog(@"FILTERED DATA: %@" ,filterArray);
此处&#39; jsonString &#39;是您提供的字符串。我刚刚执行 NSJSONSerialization 将 Stirng 转换为 NSDictionary 。
答案 1 :(得分:0)
您必须使用OR
而不是AND
合并这两个过滤器。在您的情况下,它永远不会与AND
进行比较,并将返回0个对象filteredArray
以下是custom_attributes
数组的复合谓词。
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"(attribute_code ==[c] 'color' AND value == '7') OR (attribute_code ==[c] 'size' AND value == '12')"];
// Assuming that you have parsed you custom_attributes object to customAtrributes
NSArray *filteredArray = [customAtrributes filteredArrayUsingPredicate:predicate];
答案 2 :(得分:0)
尝试为此使用ANY。
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"custom_attributes.value == %d", 7];
NSArray *filterArray = [yourArray filteredArrayUsingPredicate:predicate];
NSPredicate *predicate1 = [NSPredicate predicateWithFormat:@"custom_attributes.attribute_code CONTAINS[c] %@", "color"];
NSArray *filterArray1 = [filterArray filteredArrayUsingPredicate:predicate1];