社区 学习 工具库 休闲
搜索
简体中文
首页 > 后端开发 > php教程 > mongodb如何对子文档进行分页

mongodb如何对子文档进行分页

WBOY
发布： 2016-06-06 20:28:42
原创
1610 人浏览过

文档结构如下：

<code>{
    "_id" : ObjectId("55dc145ef754a3342000002d"),
    "id" : 12,
    "title" : "炎炎夏日，跟我一起High翻天！",
    "content" : "酷暑7月，简直不能忍~~~！夏天。就应该是被西瓜，冰镇可乐，全家桶，空调和游戏包围着的天堂。外面的世界纷纷扰扰与我无关~~哇哈哈哈！！",
    "thumb" : "/201506/5592560017b6a.jpg",
    "banner" : "/201506/559255fa5366d.jpg",
    "order" : 11,
    "publish_time" : "2015-08-25",
    "game_num" : 14,
    "games" : [ 
        {
            "id" : 1128,
            "name_zh" : "追击野兽",
            "apk_size" : "38.15M",
            "apk_version_name" : "1.0.6",
            "apk_package_name" : "com.miniclip.beastquest",
            "apk_version_code" : "18",
            "game_rank" : 8,
            "customize_update_time" : "2015-05-18 00:00:00",
        }, 
        {
            "id" : 3276,
            "name_zh" : "世界僵尸大联盟",
            "apk_size" : "33.88M",
            "apk_version_name" : "3.3.3237",
            "apk_package_name" : "com.proletariat.worldzombination",
            "apk_version_code" : "33537",
            "game_rank" : 8,
            "customize_update_time" : "2015-05-15 00:00:00",
        }, 
        {
            "id" : 3416,
            "name_zh" : "围剿外星客",
            "apk_size" : "38.69M",
            "apk_version_name" : "1.7.1",
            "apk_package_name" : "com.outplayentertainment.aliencreeps",
            "apk_version_code" : "10070010",
            "game_rank" : 8,
            "customize_update_time" : "2015-04-25 00:00:00",
        }, 
        {
            "id" : 10357,
            "name_zh" : "合金弹头：防御",
            "apk_size" : "47.13M",
            "apk_version_name" : "1.27.0",
            "apk_package_name" : "com.snkplaymore.android003",
            "apk_version_code" : "52",
            "game_rank" : 8,
            "customize_update_time" : "0000-00-00 00:00:00",
        }, 
        {
            "id" : 10360,
            "name_zh" : "绿色忍者蛙年",
            "apk_size" : "47.7M",
            "apk_version_name" : "4",
            "apk_package_name" : "com.nitrome.greenninja",
            "apk_version_code" : "4",
            "game_rank" : 8,
            "customize_update_time" : "2015-06-30 15:52:10",
        }, 
        {
            "id" : 10364,
            "name_zh" : "杀死马里奥",
            "apk_size" : "31.16M",
            "apk_version_name" : "1.0.6",
            "apk_package_name" : "air.com.keybol.plumber",
            "apk_version_code" : "1000006",
            "game_rank" : 7,
            "customize_update_time" : "2015-06-30 16:08:09", 
        }, 
        {
            "id" : 10366,
            "name_zh" : "通过繁殖征服世界",
            "apk_size" : "44.83M",
            "apk_version_name" : "1.0.2",
            "apk_package_name" : "com.kt.SpermWarWorldWide_G",
            "apk_version_code" : "10002",
            "game_rank" : 8,
            "customize_update_time" : "2015-06-30 16:21:22", 
        }, 
        {
            "id" : 10229,
            "name_zh" : "冰块切割",
            "apk_size" : "7.14M",
            "apk_version_name" : "2.4.6",
            "apk_package_name" : "com.hyperkani.sliceice",
            "apk_version_code" : "30",
            "game_rank" : 7,
            "customize_update_time" : "2014-11-04 00:00:00",
        }, 
        {
            "id" : 10356,
            "name_zh" : "吃冰淇淋的怪房子",
            "apk_size" : "33.56M",
            "apk_version_name" : "1.0.2",
            "apk_package_name" : "com.firedroid.icecreamnomsters",
            "apk_version_code" : "4",
            "game_rank" : 8,
            "customize_update_time" : "0000-00-00 00:00:00",
        }, 
        {
            "id" : 10358,
            "name_zh" : "来杯果汁",
            "apk_size" : "42.11M",
            "apk_version_name" : "1.6.21",
            "apk_package_name" : "air.com.sgn.juicejam.gp",
            "apk_version_code" : "1006021",
            "game_rank" : 6,
            "customize_update_time" : "0000-00-00 00:00:00",
        }, 
        {
            "id" : 10362,
            "name_zh" : "梦游先生",
            "apk_size" : "48.52M",
            "apk_version_name" : "1.00",
            "apk_package_name" : "com.BEbit.MrSnoozleberg",
            "apk_version_code" : "1",
            "game_rank" : 8,
            "customize_update_time" : "2015-06-30 15:58:13",
        }, 
        {
            "id" : 10363,
            "name_zh" : "清凉方冰冰",
            "apk_size" : "23.14M",
            "apk_version_name" : "1.1",
            "apk_package_name" : "com.unilever.CoolCubeszzc",
            "apk_version_code" : "2",
            "game_rank" : 6,
            "customize_update_time" : "2015-06-30 16:04:56",
        }, 
        {
            "id" : 10365,
            "name_zh" : "嗜血狂鲨2",
            "apk_size" : "9.9M",
            "apk_version_name" : "2.6.1",
            "apk_package_name" : "com.fgol.shark2",
            "apk_version_code" : "13",
            "game_rank" : 8,
            "customize_update_time" : "2015-06-30 16:15:58",
        }, 
        {
            "id" : 10367,
            "name_zh" : "外星人爱牛奶",
            "apk_size" : "23.86M",
            "apk_version_name" : "1.0.7",
            "apk_package_name" : "air.com.rightfusion.alienslikemilk",
            "apk_version_code" : "1000007",
            "game_rank" : 8,
            "customize_update_time" : "2015-06-30 16:28:17",
        }
    ]
}</code>
登录后复制
登录后复制

如何对子文档games进行分页查询
比如一次只取3条数据

<code>{
            "id" : 1128,
            "name_zh" : "追击野兽",
            "apk_size" : "38.15M",
            "apk_version_name" : "1.0.6",
            "apk_package_name" : "com.miniclip.beastquest",
            "apk_version_code" : "18",
            "game_rank" : 8,
            "customize_update_time" : "2015-05-18 00:00:00",
        }, 
        {
            "id" : 3276,
            "name_zh" : "世界僵尸大联盟",
            "apk_size" : "33.88M",
            "apk_version_name" : "3.3.3237",
            "apk_package_name" : "com.proletariat.worldzombination",
            "apk_version_code" : "33537",
            "game_rank" : 8,
            "customize_update_time" : "2015-05-15 00:00:00",
        }, 
        {
            "id" : 3416,
            "name_zh" : "围剿外星客",
            "apk_size" : "38.69M",
            "apk_version_name" : "1.7.1",
            "apk_package_name" : "com.outplayentertainment.aliencreeps",
            "apk_version_code" : "10070010",
            "game_rank" : 8,
            "customize_update_time" : "2015-04-25 00:00:00",
        }
}</code>
登录后复制
登录后复制

回复内容：

文档结构如下：

<code>{
    "_id" : ObjectId("55dc145ef754a3342000002d"),
    "id" : 12,
    "title" : "炎炎夏日，跟我一起High翻天！",
    "content" : "酷暑7月，简直不能忍~~~！夏天。就应该是被西瓜，冰镇可乐，全家桶，空调和游戏包围着的天堂。外面的世界纷纷扰扰与我无关~~哇哈哈哈！！",
    "thumb" : "/201506/5592560017b6a.jpg",
    "banner" : "/201506/559255fa5366d.jpg",
    "order" : 11,
    "publish_time" : "2015-08-25",
    "game_num" : 14,
    "games" : [ 
        {
            "id" : 1128,
            "name_zh" : "追击野兽",
            "apk_size" : "38.15M",
            "apk_version_name" : "1.0.6",
            "apk_package_name" : "com.miniclip.beastquest",
            "apk_version_code" : "18",
            "game_rank" : 8,
            "customize_update_time" : "2015-05-18 00:00:00",
        }, 
        {
            "id" : 3276,
            "name_zh" : "世界僵尸大联盟",
            "apk_size" : "33.88M",
            "apk_version_name" : "3.3.3237",
            "apk_package_name" : "com.proletariat.worldzombination",
            "apk_version_code" : "33537",
            "game_rank" : 8,
            "customize_update_time" : "2015-05-15 00:00:00",
        }, 
        {
            "id" : 3416,
            "name_zh" : "围剿外星客",
            "apk_size" : "38.69M",
            "apk_version_name" : "1.7.1",
            "apk_package_name" : "com.outplayentertainment.aliencreeps",
            "apk_version_code" : "10070010",
            "game_rank" : 8,
            "customize_update_time" : "2015-04-25 00:00:00",
        }, 
        {
            "id" : 10357,
            "name_zh" : "合金弹头：防御",
            "apk_size" : "47.13M",
            "apk_version_name" : "1.27.0",
            "apk_package_name" : "com.snkplaymore.android003",
            "apk_version_code" : "52",
            "game_rank" : 8,
            "customize_update_time" : "0000-00-00 00:00:00",
        }, 
        {
            "id" : 10360,
            "name_zh" : "绿色忍者蛙年",
            "apk_size" : "47.7M",
            "apk_version_name" : "4",
            "apk_package_name" : "com.nitrome.greenninja",
            "apk_version_code" : "4",
            "game_rank" : 8,
            "customize_update_time" : "2015-06-30 15:52:10",
        }, 
        {
            "id" : 10364,
            "name_zh" : "杀死马里奥",
            "apk_size" : "31.16M",
            "apk_version_name" : "1.0.6",
            "apk_package_name" : "air.com.keybol.plumber",
            "apk_version_code" : "1000006",
            "game_rank" : 7,
            "customize_update_time" : "2015-06-30 16:08:09", 
        }, 
        {
            "id" : 10366,
            "name_zh" : "通过繁殖征服世界",
            "apk_size" : "44.83M",
            "apk_version_name" : "1.0.2",
            "apk_package_name" : "com.kt.SpermWarWorldWide_G",
            "apk_version_code" : "10002",
            "game_rank" : 8,
            "customize_update_time" : "2015-06-30 16:21:22", 
        }, 
        {
            "id" : 10229,
            "name_zh" : "冰块切割",
            "apk_size" : "7.14M",
            "apk_version_name" : "2.4.6",
            "apk_package_name" : "com.hyperkani.sliceice",
            "apk_version_code" : "30",
            "game_rank" : 7,
            "customize_update_time" : "2014-11-04 00:00:00",
        }, 
        {
            "id" : 10356,
            "name_zh" : "吃冰淇淋的怪房子",
            "apk_size" : "33.56M",
            "apk_version_name" : "1.0.2",
            "apk_package_name" : "com.firedroid.icecreamnomsters",
            "apk_version_code" : "4",
            "game_rank" : 8,
            "customize_update_time" : "0000-00-00 00:00:00",
        }, 
        {
            "id" : 10358,
            "name_zh" : "来杯果汁",
            "apk_size" : "42.11M",
            "apk_version_name" : "1.6.21",
            "apk_package_name" : "air.com.sgn.juicejam.gp",
            "apk_version_code" : "1006021",
            "game_rank" : 6,
            "customize_update_time" : "0000-00-00 00:00:00",
        }, 
        {
            "id" : 10362,
            "name_zh" : "梦游先生",
            "apk_size" : "48.52M",
            "apk_version_name" : "1.00",
            "apk_package_name" : "com.BEbit.MrSnoozleberg",
            "apk_version_code" : "1",
            "game_rank" : 8,
            "customize_update_time" : "2015-06-30 15:58:13",
        }, 
        {
            "id" : 10363,
            "name_zh" : "清凉方冰冰",
            "apk_size" : "23.14M",
            "apk_version_name" : "1.1",
            "apk_package_name" : "com.unilever.CoolCubeszzc",
            "apk_version_code" : "2",
            "game_rank" : 6,
            "customize_update_time" : "2015-06-30 16:04:56",
        }, 
        {
            "id" : 10365,
            "name_zh" : "嗜血狂鲨2",
            "apk_size" : "9.9M",
            "apk_version_name" : "2.6.1",
            "apk_package_name" : "com.fgol.shark2",
            "apk_version_code" : "13",
            "game_rank" : 8,
            "customize_update_time" : "2015-06-30 16:15:58",
        }, 
        {
            "id" : 10367,
            "name_zh" : "外星人爱牛奶",
            "apk_size" : "23.86M",
            "apk_version_name" : "1.0.7",
            "apk_package_name" : "air.com.rightfusion.alienslikemilk",
            "apk_version_code" : "1000007",
            "game_rank" : 8,
            "customize_update_time" : "2015-06-30 16:28:17",
        }
    ]
}</code>
登录后复制
登录后复制

如何对子文档games进行分页查询
比如一次只取3条数据

<code>{
            "id" : 1128,
            "name_zh" : "追击野兽",
            "apk_size" : "38.15M",
            "apk_version_name" : "1.0.6",
            "apk_package_name" : "com.miniclip.beastquest",
            "apk_version_code" : "18",
            "game_rank" : 8,
            "customize_update_time" : "2015-05-18 00:00:00",
        }, 
        {
            "id" : 3276,
            "name_zh" : "世界僵尸大联盟",
            "apk_size" : "33.88M",
            "apk_version_name" : "3.3.3237",
            "apk_package_name" : "com.proletariat.worldzombination",
            "apk_version_code" : "33537",
            "game_rank" : 8,
            "customize_update_time" : "2015-05-15 00:00:00",
        }, 
        {
            "id" : 3416,
            "name_zh" : "围剿外星客",
            "apk_size" : "38.69M",
            "apk_version_name" : "1.7.1",
            "apk_package_name" : "com.outplayentertainment.aliencreeps",
            "apk_version_code" : "10070010",
            "game_rank" : 8,
            "customize_update_time" : "2015-04-25 00:00:00",
        }
}</code>
登录后复制
登录后复制

<code>> db.test1.find().pretty()
{
    "_id" : ObjectId("55dc145ef754a3342000002d"),
    "games" : [
        {
            "id" : 1128,
            "name_zh" : "追击野兽",
            "customize_update_time" : "2015-05-18 00:00:00"
        },
        {
            "id" : 3276,
            "name_zh" : "dasda",
            "customize_update_time" : "2015-05-15 00:00:00"
        },
        {
            "id" : 3416,
            "name_zh" : "围剿外星客",
            "customize_update_time" : "2015-04-25 00:00:00"
        },
        {
            "id" : 10357,
            "name_zh" : "合金弹头：防御",
            "customize_update_time" : "0000-00-00 00:00:00"
        },
        {
            "id" : 10360,
            "name_zh" : "绿色忍者蛙年",
            "customize_update_time" : "2015-06-30 15:52:10"
        },
        {
            "id" : 10364,
            "name_zh" : "杀死马里奥",
            "customize_update_time" : "2015-06-30 16:08:09"
        },
        {
            "id" : 10366,
            "name_zh" : "通过繁殖征服世界",
            "customize_update_time" : "2015-06-30 16:21:22"
        },
        {
            "id" : 10229,
            "name_zh" : "冰块切割",
            "customize_update_time" : "2014-11-04 00:00:00"
        },
        {
            "id" : 10356,
            "name_zh" : "吃冰淇淋的怪房子",
            "customize_update_time" : "0000-00-00 00:00:00"
        },
        {
            "id" : 10358,
            "name_zh" : "来杯果汁",
            "customize_update_time" : "0000-00-00 00:00:00"
        },
        {
            "id" : 10362,
            "name_zh" : "梦游先生",
            "customize_update_time" : "2015-06-30 15:58:13"
        },
        {
            "id" : 10363,
            "name_zh" : "清凉方冰冰",
            "customize_update_time" : "2015-06-30 16:04:56"
        },
        {
            "id" : 10365,
            "name_zh" : "嗜血狂鲨2",
            "customize_update_time" : "2015-06-30 16:15:58"
        },
        {
            "id" : 10367,
            "name_zh" : "外星人爱牛奶",
            "customize_update_time" : "2015-06-30 16:28:17"
        }
    ]
}</code>
登录后复制

取games的前3条数据：

<code>> db.test1.find({"_id" : ObjectId("55dc145ef754a3342000002d")},{"games":{ "$slice":[0,3]}}).pretty()
{
    "_id" : ObjectId("55dc145ef754a3342000002d"),
    "games" : [
        {
            "id" : 1128,
            "name_zh" : "追击野兽",
            "customize_update_time" : "2015-05-18 00:00:00"
        },
        {
            "id" : 3276,
            "name_zh" : "dasda",
            "customize_update_time" : "2015-05-15 00:00:00"
        },
        {
            "id" : 3416,
            "name_zh" : "围剿外星客",
            "customize_update_time" : "2015-04-25 00:00:00"
        }
    ]
}</code>
登录后复制

取第四条到第6条数据：

<code>> db.test1.find({"_id" : ObjectId("55dc145ef754a3342000002d")},{"games":{ "$slice":[3,3]}}).pretty()
{
    "_id" : ObjectId("55dc145ef754a3342000002d"),
    "games" : [
        {
            "id" : 10357,
            "name_zh" : "合金弹头：防御",
            "customize_update_time" : "0000-00-00 00:00:00"
        },
        {
            "id" : 10360,
            "name_zh" : "绿色忍者蛙年",
            "customize_update_time" : "2015-06-30 15:52:10"
        },
        {
            "id" : 10364,
            "name_zh" : "杀死马里奥",
            "customize_update_time" : "2015-06-30 16:08:09"
        }
    ]
}</code>
登录后复制

依次类推，即可。 "$slice":[3,3] 第一个3表示查询数组下标的起始位置，第二个3表示取的数据条数。建议games不要过多，不然会超出文档限制16M。不过这个可能是设计问题，我多想了。

第二种方法：就是用代码从数据库中取出来，将games里面的每一个子文档封装成model，放在缓存中做分页，而不是数据库级别的分页也可实现

第三种方法：从数据可看出games里面的子文档是按照id进行排序的，那么也就是说子文档是可比较的，那么就可以使用$gt和$lt，接合$size取数据，我没有试。你可以尝试一下。不过$slice获取数组子集更方便一点。

用limit(n)可以限制只获取n条数据。skip(n)可以跳过n条数据,两者结合可以实现分页吧？不过skip比较消耗资源少用为妙。

相关标签：
mongodb php
来源：php.cn
上一篇：帖子表和用户表都要用到用户头像 下一篇：正则表达式 - 求php正则，有些js正则不能用。
本站声明
本文内容由网友自发贡献，版权归原作者所有，本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容，请联系admin@php.cn
作者最新文章
最新问题
PHP数组从URL参数中获取的行为不如预期 我有一个包含类别ID的URL参数，我想将其视为一个数组，如下所示：http://example.com?cat[]=3,9,13在PHP中，我使用它从URL参数获取数组：$catI...
来自于 2024-04-06 22:09:02
0
1
1428
我应该在 apache 中哪里放置 CustomLog 指令 我正在使用php:7.2-apachedocker。我需要禁用运行状况检查url登录访问日志。基于此链接，他们提到了有关修改Customlog指令的信息。我不是关于需要更改Cust...
来自于 2024-04-06 22:03:59
0
1
990
返回值中变量的格式是什么？ 我是php的新学习者。我发现有一段代码：if($x<time()){return[false,'error'];}逻辑或变量并不重要，但我不明白[false,'error']...
来自于 2024-04-06 21:55:20
0
1
778
使用opentbs生成odt文件时遇到的问题：相同key的值显示在同一行而不是单独的列中。 我正在使用一个名为OpenTbs的库来使用PHP创建odt，我使用它是因为动态生成列和行。我知道如何创建行和列，但我不知道如何组织它们。让我添加一个例子：所以首先我会将其添加到我的...
来自于 2024-04-06 20:18:18
0
1
483
按照ID对MySQL结果进行分组以便循环遍历 我有一个表，其中有mysql中的航班数据。我正在编写一个php代码，它将使用codeigniter3对数据进行分组和显示journey_idair_idFlightDuration...
来自于 2024-04-06 17:27:56
0
1
406
相关专题
更多>
热门推荐
热门教程
更多>
相关教程
热门推荐
最新课程
最新下载
更多>
网站特效
网站源码
网站素材
前端模板