大二下学期第一次结对作业（第二阶段）

今日主要完成了查询功能，可以根据特定日期，一定日期范围，地区，国家，省份，市区共六项任意组合进行模糊查询。

由于遇到多条件的模糊查询，采用了判断各项数据是否为空，不为空则在sql语句末尾追加and （....like %...%）来实现。

并分为了两种情况：有日期与无日期。由于要进行图表联动，所以对于数据如何展示将在之后进行确定。

 var btn = document.getElementById("query2");
        btn.onclick = function(){
            alert(123)
            var fromyear=document.getElementById("fromyear").value;
            var fromday=document.getElementById("fromday").value;
            var frommonth=document.getElementById("frommonth").value;
            var toyear=document.getElementById("toyear").value;
            var today=document.getElementById("today").value;
            var tomonth=document.getElementById("tomonth").value;
            var continent=document.getElementById("continent").value;
            var country=document.getElementById("country").value;
            var province=document.getElementById("province").value;
            var city=document.getElementById("city").value;
            $.ajax({
                url:"/query2",
                data: {fromyear: fromyear,fromday:fromday,frommonth:frommonth,
                    toyear:toyear,today:today,tomonth:tomonth,
                continent:continent,country:country,province:province,city:city},
                success: function (data) {
                    if(data.name!=""){
                    }else{
                        alert("对不起暂无这一天的数据")
                    }
                },
                error: function (xhr, type, errorThrown) {
                }
            })
        }

@app.route('/query2')
def get_query_data2():
    fromyear=request.values.get("fromyear")
    frommonth=request.values.get("frommonth")
    fromday=request.values.get("fromday")
    toyear=request.values.get("toyear")
    tomonth=request.values.get("tomonth")
    today=request.values.get("today")

    continent=request.values.get("continent")
    country=request.values.get("country")
    province=request.values.get("province")
    city=request.values.get("city")
    if(fromday!=""):
        for date,country,confirm,dead,heal,nowConfirm in 
                utils.get_query_like1(fromyear,frommonth,fromday,toyear,tomonth,today,
                    continent,country,province,city):
            pass
        pass
    else:
        for date,country,confirm,dead,heal,nowConfirm in 
                utils.get_query_like2(continent,country,province,city):
            pass
        pass
    return jsonify()

def get_query_like1(fromyear,frommonth,fromday,toyear,tomonth,today,
                    continent,country,province,city):
    Year=str(fromyear)
    Month=str(frommonth)
    Day=str(fromday)
    ds = Year+"." + Month+"."+Day
    print(ds)
    tup = time.strptime(ds, "%Y.%m.%d")
    print(tup)
    ds = time.strftime("%Y-%m-%d", tup)
    Year=str(toyear)
    Month=str(tomonth)
    Day=str(today)
    ds1 = Year+"." + Month+"."+Day
    print(ds1)
    tup1 = time.strptime(ds1, "%Y.%m.%d")
    print(tup1)
    ds1 = time.strftime("%Y-%m-%d", tup1)
    sql = "select update_time,country,confirm,dead,heal,nowconfirm from world "
          "where (update_time between "+"'"+ds+"' and '"+ds1+"'"+") "
    if (continent != ""):
        sql = sql + "and (continent like " + '"%' + continent + '%") '
    if (country != ""):
        sql = sql + "and (country like " + '"%' + country + '%") '
    if (province != ""):
        sql = sql + "and (province like " + '"%' + province + '%") '
    if (city != ""):
        sql = sql + "and (city like " + '"%' + city + '%") '
    res = query(sql)
    return res

def get_query_like2(continent,country,province,city):
    sql = "select update_time,country,confirm,dead,heal,nowconfirm from world where 1=1 "
    if(continent!=""):
        sql=sql+"and (continent like "+'"%'+continent+'%") '
    if(country!=""):
        sql=sql+"and (country like "+'"%'+country+'%") '
    if(province!=""):
        sql=sql+"and (province like "+'"%'+province+'%") '
    if(city!=""):
        sql=sql+"and (city like "+'"%'+city+'%") '

    print(sql)
    res = query(sql)
    return res

对查询区块稍微做了美化：

.mainbox .column2 .date {
    background: #d7f7fa;
    padding: 1px;
    width: 40px;
    font-size: 10px;
    font-weight: 300;
}

.mainbox .column2 .area {
    background: #d7f7fa;
    padding: 1px;
    width: 80px;
    font-size: 10px;
    font-weight: 300;
}

<font id="text">from</font><input type="text" id="fromyear" class="date">年
            <input type="text" id="frommonth" class="date">月
            <input type="text" id="fromday" class="date">日
            <font id="text">to</font>
            <input type="text" id="toyear" class="date">年
            <input type="text" id="tomonth" class="date">月
            <input type="text" id="today" class="date">日<br>
            <input type="text" id="continent" class="area">地区
            <input type="text" id="contry" class="area">国家
            <input type="text" id="province" class="area">省
            <input type="text" id="city" class="area">市
            <Button id="query2" >查询</Button>
            <hr>