|
|
|
|
|
const db = wx.cloud.database({
|
|
|
|
|
|
env: 'software-9g3qgled9f6190ea'
|
|
|
|
|
|
})
|
|
|
|
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|
|
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|
|
|
|
Page({
|
|
|
|
|
|
data: {
|
|
|
|
|
|
randomRecord: null ,// 用来存储随机抽取的整个记录
|
|
|
|
|
|
xuenum: 0,
|
|
|
|
|
|
add:0,
|
|
|
|
|
|
},
|
|
|
|
|
|
// 生命周期函数--监听页面加载
|
|
|
|
|
|
onLoad: function() {
|
|
|
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|
|
this.getRandomRecord();
|
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|
|
|
|
},
|
|
|
|
|
|
getRandomRecord: function() {
|
|
|
|
|
|
const db = wx.cloud.database();
|
|
|
|
|
|
const _ = db.command;
|
|
|
|
|
|
let records = []; // 存储所有获取到的记录
|
|
|
|
|
|
const pageSize = 20; // 每页的记录数
|
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|
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|
|
let pageOffset = 0; // 当前页的偏移量
|
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|
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|
|
const maxRecords = 1000; // 最大获取记录数
|
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|
|
|
|
|
|
|
|
|
|
// 分页获取记录的函数
|
|
|
|
|
|
const fetchPageOfRecords = (offset, size) => {
|
|
|
|
|
|
db.collection('users')
|
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|
|
|
|
。skip(offset)
|
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|
|
|
|
。limit(size)
|
|
|
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|
|
。get({
|
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|
|
|
|
success: res => {
|
|
|
|
|
|
if (res.data.length > 0) {
|
|
|
|
|
|
records = records.concat(res.data); // 将新获取的记录添加到records数组中
|
|
|
|
|
|
if (records.length < maxRecords) {
|
|
|
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|
|
pageOffset += pageSize; // 更新偏移量，准备获取下一页
|
|
|
|
|
|
fetchPageOfRecords(pageOffset, pageSize); // 递归调用以获取下一页的记录
|
|
|
|
|
|
} else {
|
|
|
|
|
|
// 当获取到足够的记录后，处理records数组
|
|
|
|
|
|
processRecords();
|
|
|
|
|
|
}
|
|
|
|
|
|
} else {
|
|
|
|
|
|
console.log('没有更多的记录');
|
|
|
|
|
|
processRecords(); // 如果没有更多的记录，处理已有的records数组
|
|
|
|
|
|
}
|
|
|
|
|
|
},
|
|
|
|
|
|
fail: err => {
|
|
|
|
|
|
console.error('查询失败', err);
|
|
|
|
|
|
}
|
|
|
|
|
|
});
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
// 处理记录的函数
|
|
|
|
|
|
const processRecords = () => {
|
|
|
|
|
|
if (records.length === 0) {
|
|
|
|
|
|
console.log('没有找到记录');
|
|
|
|
|
|
return;
|
|
|
|
|
|
}
|
|
|
|
|
|
// 计算权重并选择记录
|
|
|
|
|
|
const weightedRecords = this.calculateWeights(records);
|
|
|
|
|
|
const randomRecord = this.selectRecordByWeight(weightedRecords);
|
|
|
|
|
|
const xuenum = randomRecord.num;
|
|
|
|
|
|
|
|
|
|
|
|
// 更新数据库中的记录，并添加当前服务器时间戳
|
|
|
|
|
|
db.collection('users').doc(randomRecord._id).update({
|
|
|
|
|
|
data: {
|
|
|
|
|
|
timestamp: _.set(db.serverDate()) // 设置当前服务器时间
|
|
|
|
|
|
},
|
|
|
|
|
|
success: updateRes => {
|
|
|
|
|
|
console.log('记录更新成功，时间戳添加');
|
|
|
|
|
|
this.ifonlie();
|
|
|
|
|
|
},
|
|
|
|
|
|
fail: updateErr => {
|
|
|
|
|
|
console.error('记录更新失败', updateErr);
|
|
|
|
|
|
}
|
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
|
|
// 更新页面data对象中的randomRecord变量
|
|
|
|
|
|
this.setData({
|
|
|
|
|
|
randomRecord: randomRecord,
|
|
|
|
|
|
xuenum: xuenum
|
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
|
|
console.log('随机记录：', randomRecord);
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
// 开始分页查询
|
|
|
|
|
|
fetchPageOfRecords(pageOffset, pageSize);
|
|
|
|
|
|
},
|
|
|
|
|
|
|
|
|
|
|
|
calculateWeights: function(records) {
|
|
|
|
|
|
return records.map(record => {
|
|
|
|
|
|
// 假设权重是分数的倒数，分数越高，权重越低
|
|
|
|
|
|
const weight = 1 / (record.score || 1); // 防止除以0
|
|
|
|
|
|
return { record, weight };
|
|
|
|
|
|
});
|
|
|
|
|
|
},
|
|
|
|
|
|
|
|
|
|
|
|
selectRecordByWeight: function(weightedRecords) {
|
|
|
|
|
|
let cumulativeWeight = 0;
|
|
|
|
|
|
weightedRecords.forEach(item => {
|
|
|
|
|
|
cumulativeWeight += item.weight;
|
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
|
|
if (cumulativeWeight === 0) return null; // 防止除以0
|
|
|
|
|
|
|
|
|
|
|
|
const randomValue = Math.random() * cumulativeWeight;
|
|
|
|
|
|
let currentWeight = 0;
|
|
|
|
|
|
for (let i = 0; i < weightedRecords.length; i++) {
|
|
|
|
|
|
currentWeight += weightedRecords[i].weight;
|
|
|
|
|
|
if (currentWeight >= randomValue) {
|
|
|
|
|
|
return weightedRecords[i].record;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
return null; // 默认返回null，理论上不应该执行到这里
|
|
|
|
|
|
},
|
|
|
|
|
|
|
|
|
|
|
|
ifonlie:function(){
|
|
|
|
|
|
db.collection('user_ol').where({
|
|
|
|
|
|
num:this.data.xuenum
|
|
|
|
|
|
}).get({
|
|
|
|
|
|
success: res => {
|
|
|
|
|
|
// 查询成功
|
|
|
|
|
|
this.addcount();
|
|
|
|
|
|
if (res.data.length > 0) {
|
|
|
|
|
|
// 如果查询到数据
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '学生在线',
|
|
|
|
|
|
icon: 'success',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
} else {
|
|
|
|
|
|
// 如果没有查询到数据
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '学生缺勤',
|
|
|
|
|
|
icon: 'none',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
}
|
|
|
|
|
|
},
|
|
|
|
|
|
})
|
|
|
|
|
|
},
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
addcount: function() {
|
|
|
|
|
|
const that = this; // 保存当前上下文
|
|
|
|
|
|
const db = wx.cloud.database(); // 获取数据库引用
|
|
|
|
|
|
const xuenum = this.data.xuenum; // 从data对象中获取xuenum
|
|
|
|
|
|
|
|
|
|
|
|
// 查询 user_ol 集合中特定学号的记录
|
|
|
|
|
|
db.collection('user_ol').where({
|
|
|
|
|
|
num: xuenum
|
|
|
|
|
|
}).get({
|
|
|
|
|
|
success: function(res) {
|
|
|
|
|
|
// 查询成功，处理结果
|
|
|
|
|
|
if (res.data.length > 0) {
|
|
|
|
|
|
// 获取记录的 _id 和 count 属性
|
|
|
|
|
|
const recordId = res.data[0]._id;
|
|
|
|
|
|
const currentCount = res.data[0].count || 0;
|
|
|
|
|
|
|
|
|
|
|
|
// 如果 count 是 0，则更新 users 集合中的 score 并增加 user_ol 集合中的 count
|
|
|
|
|
|
let scoreUpdatePromise;
|
|
|
|
|
|
if (currentCount >= 0) {
|
|
|
|
|
|
// 更新 users 集合中的 score
|
|
|
|
|
|
scoreUpdatePromise = db.collection('users').where({
|
|
|
|
|
|
num: xuenum
|
|
|
|
|
|
}).update({
|
|
|
|
|
|
data: {
|
|
|
|
|
|
score: that.data.randomRecord.score + 1 // 将 score 属性加1
|
|
|
|
|
|
}
|
|
|
|
|
|
});
|
|
|
|
|
|
} else {
|
|
|
|
|
|
scoreUpdatePromise = Promise.resolve(); // 如果不需要更新 score，使用空的 Promise
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
scoreUpdatePromise.then(() => {
|
|
|
|
|
|
// 更新 user_ol 集合中的 count
|
|
|
|
|
|
return db.collection('user_ol').doc(recordId).update({
|
|
|
|
|
|
data: {
|
|
|
|
|
|
count: currentCount + 1 // 将 count 属性加1
|
|
|
|
|
|
}
|
|
|
|
|
|
});
|
|
|
|
|
|
}).then(updateRes => {
|
|
|
|
|
|
// 更新成功
|
|
|
|
|
|
console.log('更新成功', updateRes);
|
|
|
|
|
|
}).catch(updateErr => {
|
|
|
|
|
|
// 更新失败
|
|
|
|
|
|
console.error('更新失败', updateErr);
|
|
|
|
|
|
});
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
});
|
|
|
|
|
|
},
|
|
|
|
|
|
|
|
|
|
|
|
gotoindex5()
|
|
|
|
|
|
{
|
|
|
|
|
|
wx.navigateTo({
|
|
|
|
|
|
url: '/pages/index5/index5' // 确保路径正确
|
|
|
|
|
|
})
|
|
|
|
|
|
},
|
|
|
|
|
|
|
|
|
|
|
|
inputChange: function(e) {
|
|
|
|
|
|
this.setData({
|
|
|
|
|
|
add: e.detail.value
|
|
|
|
|
|
});
|
|
|
|
|
|
},
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
queryUser: function() {
|
|
|
|
|
|
const that = this; // 保存当前上下文
|
|
|
|
|
|
const db = wx.cloud.database(); // 获取数据库引用
|
|
|
|
|
|
const xuenum = this.data.xuenum; // 从data对象中获取xuenum
|
|
|
|
|
|
const add = this.data.add;
|
|
|
|
|
|
|
|
|
|
|
|
// 查询特定学号的记录
|
|
|
|
|
|
db.collection('user_ol').where({
|
|
|
|
|
|
num: xuenum
|
|
|
|
|
|
}).get({
|
|
|
|
|
|
success: function(res) {
|
|
|
|
|
|
// 查询成功，处理结果
|
|
|
|
|
|
if (res.data.length > 0) {
|
|
|
|
|
|
// 获取记录的 count 属性，如果没有则默认为 0
|
|
|
|
|
|
const count = res.data[0].count || 0;
|
|
|
|
|
|
const temp = that.data.randomRecord.score;
|
|
|
|
|
|
|
|
|
|
|
|
// 计算新的 score 值
|
|
|
|
|
|
const newScore = parseFloat(add) * (0.9+ 0.1* count ) + temp;
|
|
|
|
|
|
console.log('成绩',newScore);
|
|
|
|
|
|
// 更新记录的 score
|
|
|
|
|
|
db.collection('users').where({
|
|
|
|
|
|
num: xuenum
|
|
|
|
|
|
}).update({
|
|
|
|
|
|
data: {
|
|
|
|
|
|
score: newScore
|
|
|
|
|
|
},
|
|
|
|
|
|
success: function(updateRes) {
|
|
|
|
|
|
// 更新成功
|
|
|
|
|
|
console.log('更新成功', updateRes);
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '分数更新成功',
|
|
|
|
|
|
icon: 'success',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
},
|
|
|
|
|
|
fail: function(updateErr) {
|
|
|
|
|
|
// 更新失败
|
|
|
|
|
|
console.error('更新失败', updateErr);
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '更新失败，请重试',
|
|
|
|
|
|
icon: 'none',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
}
|
|
|
|
|
|
});
|
|
|
|
|
|
} else {
|
|
|
|
|
|
// 如果没有查询到数据
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '未找到对应的记录',
|
|
|
|
|
|
icon: 'none',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
}
|
|
|
|
|
|
},
|
|
|
|
|
|
fail: function(err) {
|
|
|
|
|
|
// 查询失败
|
|
|
|
|
|
console.error('查询失败', err);
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '查询失败，请重试',
|
|
|
|
|
|
icon: 'none',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
}
|
|
|
|
|
|
});
|
|
|
|
|
|
},
|
|
|
|
|
|
|
|
|
|
|
|
decreaseScore: function() {
|
|
|
|
|
|
const that = this;
|
|
|
|
|
|
const db = wx.cloud.database();
|
|
|
|
|
|
const xuenum = this.data.xuenum; // 从data对象中获取xuenum
|
|
|
|
|
|
|
|
|
|
|
|
if (xuenum === 0) {
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '学号未设置',
|
|
|
|
|
|
icon: 'none',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
return;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// 查询 user_ol 集合中特定学号的记录
|
|
|
|
|
|
db.collection('users').where({
|
|
|
|
|
|
num: xuenum
|
|
|
|
|
|
}).get({
|
|
|
|
|
|
success: function(res) {
|
|
|
|
|
|
if (res.data.length > 0) {
|
|
|
|
|
|
const record = res.data[0];
|
|
|
|
|
|
if (record.score > 0) { // 确保 score 大于 0 才进行减操作
|
|
|
|
|
|
// 更新 users 集合中的 score
|
|
|
|
|
|
db.collection('users').doc(record._id).update({
|
|
|
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data: {
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score: db.command.inc(-1) // 将 score 属性减1
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},
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success: function(updateRes) {
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// 更新成功
|
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|
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console.log('分数减少成功', updateRes);
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '分数减少1',
|
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|
|
|
|
icon: 'success',
|
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|
|
|
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duration: 2000
|
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|
|
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});
|
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},
|
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|
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|
|
fail: function(updateErr) {
|
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|
|
|
|
// 更新失败
|
|
|
|
|
|
console.error('分数减少失败', updateErr);
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '分数减少失败，请重试',
|
|
|
|
|
|
icon: 'none',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
}
|
|
|
|
|
|
});
|
|
|
|
|
|
} else {
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '分数不能为负',
|
|
|
|
|
|
icon: 'none',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
}
|
|
|
|
|
|
} else {
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '未找到对应的记录',
|
|
|
|
|
|
icon: 'none',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
}
|
|
|
|
|
|
},
|
|
|
|
|
|
fail: function(err) {
|
|
|
|
|
|
console.error('查询失败', err);
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '查询失败，请重试',
|
|
|
|
|
|
icon: 'none',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
}
|
|
|
|
|
|
});
|
|
|
|
|
|
},
|
|
|
|
|
|
|
|
|
|
|
|
addScore: function() {
|
|
|
|
|
|
const that = this;
|
|
|
|
|
|
const db = wx.cloud.database();
|
|
|
|
|
|
const xuenum = this.data.xuenum; // 从data对象中获取xuenum
|
|
|
|
|
|
|
|
|
|
|
|
if (xuenum === 0) {
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '学号未设置',
|
|
|
|
|
|
icon: 'none',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
return;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// 查询 user_ol 集合中特定学号的记录
|
|
|
|
|
|
db.collection('users').where({
|
|
|
|
|
|
num: xuenum
|
|
|
|
|
|
}).get({
|
|
|
|
|
|
success: function(res) {
|
|
|
|
|
|
if (res.data.length > 0) {
|
|
|
|
|
|
const record = res.data[0];
|
|
|
|
|
|
if (record.score > 0) { // 确保 score 大于 0 才进行减操作
|
|
|
|
|
|
// 更新 users 集合中的 score
|
|
|
|
|
|
db.collection('users').doc(record._id).update({
|
|
|
|
|
|
data: {
|
|
|
|
|
|
score: db.command.inc(0.5) // 将 score 属性减1
|
|
|
|
|
|
},
|
|
|
|
|
|
success: function(updateRes) {
|
|
|
|
|
|
// 更新成功
|
|
|
|
|
|
console.log('分数减少成功', updateRes);
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '分数增加0.5',
|
|
|
|
|
|
icon: 'success',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
},
|
|
|
|
|
|
fail: function(updateErr) {
|
|
|
|
|
|
// 更新失败
|
|
|
|
|
|
console.error('分数减少失败', updateErr);
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '分数减少失败，请重试',
|
|
|
|
|
|
icon: 'none',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
}
|
|
|
|
|
|
});
|
|
|
|
|
|
} else {
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '分数不能为负',
|
|
|
|
|
|
icon: 'none',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
}
|
|
|
|
|
|
} else {
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '未找到对应的记录',
|
|
|
|
|
|
icon: 'none',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
}
|
|
|
|
|
|
},
|
|
|
|
|
|
fail: function(err) {
|
|
|
|
|
|
console.error('查询失败', err);
|
|
|
|
|
|
wx.showToast({
|
|
|
|
|
|
title: '查询失败，请重试',
|
|
|
|
|
|
icon: 'none',
|
|
|
|
|
|
duration: 2000
|
|
|
|
|
|
});
|
|
|
|
|
|
}
|
|
|
|
|
|
});
|
|
|
|
|
|
}
|
|
|
|
|
|
});
|
