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我正在生成短 URL 并生成与其对应的哈希值，并将其保存在数据库中。对于每个哈希，我还保存了一些客户端数据。现在我想获得每个月给定哈希的点击总数

Like for DCmuih their are 20 clicks in January and 30 in Feb and so on 

models.py

import ast
import uuid
import base64
from django.db import models
from django.contrib import admin
from qlu.settings import HOST_NAME
from django.core.validators import URLValidator
#------------------------------------------------------------------------------ 


class short_url(models.Model):
    """
        This is a short_url class 
    """
    blocked = models.BooleanField(default=False)                                # To check whether URL is blocked or not 
    updated_at = models.DateTimeField(auto_now=True)                            # When URL is updated
    url = models.TextField(validators=[URLValidator()])                         # URL entered by the user
    created_at = models.DateTimeField(auto_now_add=True)                        # When URL is created
    url_hash = models.CharField(max_length=10,unique=True,db_index=True)        # base64 encoded URL id  

    def _generateShortUrl(self):
        """
            This function will generate base64 encoded URL hash
        """
        hash = base64.urlsafe_b64encode(uuid.uuid1().bytes)[:6]
        hash_exist = short_url.objects.filter(url_hash=hash)
        while hash_exist:
            hash = base64.urlsafe_b64encode(uuid.uuid1().bytes)[:6]
            hash_exist = short_url.objects.filter(url_hash=hash)        
            continue       
        return hash 


    def save(self, *args, **kwargs):
        """
            Custom Save method for link model 
        """
        self.url_hash = self._generateShortUrl()        
        super(short_url, self).save(*args, **kwargs)    


    def get_short_url(self):
        """
            This method returns the url_hash related to the url 
        """
        return HOST_NAME + self.url_hash


    def __unicode__(self):
        """
            This method convert Django model object to the user readable string 
        """
        return unicode(self.url)


class click_info(models.Model):
    """
        This is a click_info class 
    """
    user_ip = models.TextField()                                                # Store the user_ip
    user_agent = models.TextField()                                             # Store the user_agent
    http_refrer = models.TextField()                                            # Store the http_refrer
    hash = models.ForeignKey(short_url)                                         # base64 encoded URL id
    get_parameters = models.TextField()                                         # Store other get_parameters
    request_time = models.DateTimeField()                                       # When user made the request_time
    updated_at = models.DateTimeField(auto_now=True)                            # When click_info is updated
    created_at = models.DateTimeField(auto_now_add=True)                        # When click is created


    def get_parameters_dict(self):
        """
            This method returns the get parameter dict
        """
        return ast.literal_eval(self.get_parameters)


    def __unicode__(self):
        """
            This method convert Django model object to the user readable string 
        """
        return unicode(self.hash)


#------------------------------------------------------------------------------ 

class short_url_admin(admin.ModelAdmin):
    """
        short_url_admin class
    """
    list_display = ('url','blocked','updated_at',
                    'created_at','url_hash')
    exclude = ('url_hash',)


class url_info_admin(admin.ModelAdmin):
    """
        url_info_admin class
    """
    list_display = ('user_ip','user_agent','http_refrer',
                    'hash','request_time','get_parameters_dict')    

#------------------------------------------------------------------------------ 
admin.site.register(short_url,short_url_admin)
admin.site.register(click_info,url_info_admin)
4

1 回答 1

1

只需查询时间范围：

import datetime
from models import click_info

def get_click_by_month(month, year, hash):
    d1 = datetime.datetime(year=year, month=month, day=1)
    d2 = datetime.datetime(year=year, month=month + 1, day=1)
    clicks = click_info.objects.filter(url_hash=hash, created_at__range=[d1, d2])
    return len(clicks)

PS PEP8 建议使用 CamelCase 来命名类。当然这不是强制性的，但至少团队内部的人必须使用相同的代码编写原则。使用 PEP8 比创建自己的规则更容易。

于 2013-09-13T08:41:09.817 回答