fix data structure

Signed-off-by: Peng Xiao <[email protected]>

README.md

@@ -3,3 +3,54 @@
 Udemy本人更多课程优惠折扣购买地址
 
  https://github.com/udemy-course/Promotion
+
+
+
+## 课程资料
+
+
+### 第三章
+
+
+JSON数据结构: https://github.com/udemy-course/mongodb-cn/blob/master/chapter3/employee.json
+
+查找和更新 https://github.com/udemy-course/mongodb-cn/blob/master/chapter3/employee_1.json
+
+Document的嵌套 https://github.com/udemy-course/mongodb-cn/blob/master/chapter3/employee_2.json
+
+### 第四章
+
+MongoDB的Python驱动演示 https://github.com/udemy-course/mongodb-cn/blob/master/chapter4/test.py
+
+### 第五章
+
+一对一关系 https://github.com/udemy-course/mongodb-cn/blob/master/chapter5/one-one.json
+
+
+一对多关系的聚合Aggregation https://github.com/udemy-course/mongodb-cn/blob/master/chapter5/aggregation.json
+
+### 第六章
+
+逻辑和比较操作符练习 https://github.com/udemy-course/mongodb-cn/blob/master/chapter6/movie.json
+
+元素相关操作符 https://docs.mongodb.com/manual/reference/operator/query-element/
+
+Array相关的操作符 https://github.com/udemy-course/mongodb-cn/blob/master/chapter6/array.json
+
+updateOne,updateMany,$set回顾 https://github.com/udemy-course/mongodb-cn/blob/master/chapter6/people.json
+
+### 第七章
+
+单一字段的index https://github.com/udemy-course/mongodb-cn/blob/master/chapter7/index.json
+
+使用unique index唯一值索引 https://github.com/udemy-course/mongodb-cn/blob/master/chapter7/people.json
+
+### 第八章
+
+寻找附近的餐厅 https://github.com/udemy-course/mongodb-cn/blob/master/chapter8/restaurant.json
+
+判断是否在某一个区域内 https://github.com/udemy-course/mongodb-cn/blob/master/chapter8/neighborhood.json
+
+
+### 第九章
+

chapter10/add-admin.js

@@ -0,0 +1,14 @@
+db.createUser(
+    {
+        user : "admin",
+        pwd : "admin",
+        roles: [ 
+            {
+                role : "readWrite", db : "admin"},
+            {
+                role:  "userAdminAnyDatabase",
+                db : "admin"
+            }
+        ]
+    }
+)

chapter13/generate_shard_data.py

@@ -0,0 +1,19 @@
+import random
+import string
+
+res = []
+min_char = 100
+max_char = 200
+allchar = string.ascii_letters + string.punctuation + string.digits
+
+
+for i in range(100000):
+    tmp = {}
+    tmp['testkey'] = random.randint(1, 10000)
+    tmp['testtext'] = "".join(random.choice(allchar) for x in range(random.randint(min_char, max_char)))
+    res.append(tmp)
+
+f = open('shard_data.json', 'w')
+import json
+json.dump(res, f)
+f.close()

chapter5/aggregation.json

@@ -0,0 +1,56 @@
+db.dropDatabase()
+
+db.customer.insertMany(
+[
+    {
+        "_id": 1,
+        "name": "John Cart",
+        "email": "[email protected]",           
+        "phone": 12345,
+        "orders": [1, 2, 3]
+    },
+    {
+        "_id": 2,
+        "name": "Arber Su",
+        "email": "[email protected]",           
+        "phone": 56789,
+        "orders": [4, 5]
+    }
+])
+
+db.order.insertMany(
+[
+    {
+        "_id": 1,
+        "date": "2018-12-10",
+        "product": "book",
+        "cost": 19.99
+    },
+    {   
+        "_id": 2,
+        "date": "2018-12-13",
+        "product": "book",
+        "cost": 39.99
+    },
+    {   
+        "_id": 3,
+        "date": "2018-12-22",
+        "product": "computer",
+        "cost": 2899
+    },
+    {
+        "_id": 4,
+        "date": "2018-12-01",
+        "product": "book",
+        "cost": 19.99
+    },
+    {   
+        "_id":5,
+        "date": "2018-12-29",
+        "product": "computer",
+        "cost": 2899
+    }
+]
+)
+
+db.customer.aggregate([{$lookup: {from: "order", localField:"orders",foreignField: "_id", as: "order_details"}}]).pretty()

chapter5/one-one.json

@@ -0,0 +1,17 @@
+{
+    "_id": 1,
+    "name": "John Cart",
+    "email": "[email protected]",
+    "phone": 12345,
+    "address": 1
+}
+
+{
+    "_id": 1,
+    "city": "Shanghai",
+    "street": "aaaaa",
+    "building": 1,
+    "unit": 2,
+    "room": 1021
+}
+

chapter6/array.json

@@ -0,0 +1,34 @@
+[
+    {
+        "name": "Jack",
+        "age": 27,
+        "hobby": [
+            {
+                "type": "Movie",
+                "rating": 3
+            },
+            {
+                "type": "Sports",
+                "rating": 6
+            }
+        ]
+    },
+    {
+        "name": "Mark",
+        "age": 25,
+        "hobby": [
+            {
+                "type": "Movie",
+                "rating": 2
+            },
+            {
+                "type": "Cook",
+                "rating": 5
+            },
+            {
+                "type": "Music",
+                "rating": 4
+            }
+        ]
+    }
+]

chapter6/people.json

@@ -0,0 +1,34 @@
+[
+    {
+        "name": "Jack",
+        "age": 27,
+        "hobby": [
+            {
+                "type": "Movie",
+                "rating": 3
+            },
+            {
+                "type": "Sports",
+                "rating": 6
+            }
+        ]
+    },
+    {
+        "name": "Mark",
+        "age": 25,
+        "hobby": [
+            {
+                "type": "Movie",
+                "rating": 2
+            },
+            {
+                "type": "Cook",
+                "rating": 5
+            },
+            {
+                "type": "Music",
+                "rating": 4
+            }
+        ]
+    }
+]