tastypie相关资源组

时间:2015-08-12 14:05:41

标签: python django tastypie

我是TastyPie中的新人,我想要一些也许简单任务的帮助(在英语中也是D :)。我有一个字段的两个相关资源。 ForeignKey我希望得到一个结果集,其中包含一段时间内跑步者执行的总循环。该requeriment反映在下一个SQL查询中。

SELECT r.firstName, r.lastName, COUNT(l.id) FROM Runners r INNER JOIN Loops l ON r.id = l.runnerId WHERE l.start >= '1900-01-01' AND l.end <= '1900-01-02'

Resources.py

class LoopsResource(ModelResource):
    operators = fields.ForeignKey("OperatorsResource", "operators", full=True, null=True, blank=True)

class Meta:
    queryset = Loopssync.objects.all()
    resource_name = 'Loopssync'
    authorization = Authorization()
    #fields = []

    filtering = {
        "startedat" : ['gte', 'gt', 'lte', 'lt'],
        "finishedat" : ['gte', 'gt', 'lte', 'lt'],
        "operatorid": ALL_WITH_RELATIONS
    }

class RunnersResource(ModelResource):
    class Meta:
        queryset = Runners.objects.all()
        resource_name = 'Runners'
        authorization = Authorization()
        fields = ['id', 'firstname', 'lastname']
        filtering = {"id": ALL}

Models.py

class Loopssync(models.Model):
    remoteid = models.IntegerField(db_column='remoteId', blank=True, null=True)  
    startedat = models.DateTimeField(db_column='startedAt') 
    finishedat = models.DateTimeField(db_column='finishedAt')  
    runnerid = models.ForeignKey('Runners', db_column='runnerId')

class Runners(models.Model):
    firstname = models.TextField(db_column='firstName') 
    lastname = models.TextField(db_column='lastName')

此外,我想知道我应该使用什么URI来在浏览器中获取此设置结果。

1 个答案:

答案 0 :(得分:0)

第2行后添加:

runners = fields.ToManyField("RunnersResource", "runners", full=True, null=True, blank=True)

然后你应该能够做到:

?startedat__gte=1900-01-01&finishedat__lte=1900-01-02

没有必要做计数。您可以简单地计算您获得的循环数量。或者也许tastypie甚至会为您提供这些信息。