predict-coin/data.py

from  keras.models import Sequential
from  keras.layers import Dense, Dropout, Embedding
from  keras.layers import InputLayer
from  keras.layers import LSTM
from  keras import backend 

import pymysql
import pickle
import os
import numpy

def get_collect():
    collect = {} 
    loadfile = "./collect.pickle"

    try:
        collect = pickle.load(open(loadfile, 'rb'))
    except Exception as e:
        print(e)
        # 打开数据库连接
        db = pymysql.connect(host="sg-board1.livenono.com", port=3306,user="root",passwd="Nono-databoard",db="databoard",charset="utf8")
        
        # 使用 cursor() 方法创建一个游标对象 cursor
        cursor = db.cursor()
        
        # 使用 execute()  方法执行 SQL 查询 
        print(cursor.execute('''SELECT coin, extra_coins, pay_users, create_at from pay_items_hour pih where region = "all" and platform="all"''')) 
        collect_pay = {}
        for row in cursor.fetchall():
            # print(row)
            coin, extra_coins, pay_users, create_at = row
            d = str(create_at.date())
            if d in collect_pay:
                collect_pay[d].append(row)
            else:
                collect_pay[d] = [ row ] 
        # print(dir(create_at), create_at.timestamp(), create_at.date())
        print('共查找出', cursor.rowcount, '条数据')
        deletelist = []
        for k in collect_pay:
            if len(collect_pay[k]) != 24:
                deletelist.append(k)

        for k in deletelist:
            del collect_pay[k]

        querydate= []
        for k in collect_pay:
            querydate.append(k)
        
        querydate.sort()
        cursor.execute(
            '''SELECT coin, users, create_at from gift_items_hour pih where region = "all" and create_at >= %s and create_at <= %s''',
            (querydate[0], querydate[-1]),
            )

        collect_gift = {}
        for row in cursor.fetchall():
    
            coin, users, create_at = row
            d = str(create_at.date())
            if d in collect_gift:
                collect_gift[d].append(row)
            else:
                collect_gift[d] = [ row ] 

        for k in collect_pay:
            l = collect_pay[k]
            l.sort(key=lambda x:x[3])

        for k in collect_gift:
            l = collect_gift[k]
            l.sort(key=lambda x:x[2])

        collect["pay"] = collect_pay
        collect["gift"] = collect_gift

        pickle.dump(collect, open(loadfile, 'wb+'))
    finally:
        return collect



def load_pay_data(textNum = 80):

    collect = get_collect()

    # TODO: 处理gift pay的波动关系

    x_train = []
    y_train = []

    collect_pay = []
    for k in collect["pay"]:
        collect_pay.append(collect["pay"][k])
    
    collect_pay.sort(key=lambda x:x[0][3])
    lastday_v = collect_pay[0]
    for cur_v in collect_pay[1:]:
    
        total_coin = 0
        last_total_coin = 0

        count = 0
        for v1, v2 in zip(cur_v,lastday_v):
            total_coin += v1[0] + v1[1]
            # print(v1[3])
    
            last_total_coin += v2[0] + v2[1]
            # print(v2[3])
            compare = float(total_coin - last_total_coin) / float(last_total_coin)
            # print(compare)

            x_train.append([count, total_coin , (total_coin - last_total_coin) , v1[2] , v2[2]])
            count+=1

        for i in range(count):
            y_train.append(total_coin)

        lastday_v = cur_v

    x_train = numpy.reshape(x_train, (len(x_train) , 5, 1))
    y_train = numpy.reshape(y_train, (len(y_train)))
    # max_features = 1024

    tx_train = x_train[len(x_train) - textNum:]
    ty_train = y_train[len(y_train) - textNum:]

    x_train = x_train[:len(x_train) - textNum]
    y_train = y_train[:len(y_train) - textNum]

    return x_train, y_train, tx_train, ty_train

def load_gift_data(textNum = 80):

    collect = get_collect()

    x_train = []
    y_train = []

    collect_gift = []
    for k in collect["gift"]:
        collect_gift.append(collect["gift"][k])
    
    collect_gift.sort(key=lambda x:x[0][2])
    lastday_v = collect_gift[0]
    for cur_v in collect_gift[1:]:
    
        total_coin = 0
        last_total_coin = 0
        users = 0

        f = 20000000.0
        count = 0
        for v1, v2 in zip(cur_v,lastday_v):
            total_coin += v1[0] 
            # print(v1[3])
    
            last_total_coin += v2[0] 
            users += v1[1]
             
            # print(v2[3])
            compare = float(total_coin - last_total_coin) / float(last_total_coin)
            # print(compare)

            x_train.append([count, total_coin, compare, users ])
            count+=1

        for i in range(count):
            y_train.append(total_coin)

        lastday_v = cur_v

    x_train = numpy.reshape(x_train, (len(x_train) , 4, 1))
    y_train = numpy.reshape(y_train, (len(y_train)))
    # max_features = 1024

    tx_train = x_train[len(x_train) - textNum:]
    ty_train = y_train[len(y_train) - textNum:]

    x_train = x_train[:len(x_train) - textNum]
    y_train = y_train[:len(y_train) - textNum]

    return x_train, y_train, tx_train, ty_train