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我有一个名为 Organization 的模型，它有很多 teams 和很多 collaborations。 Collaboration 也有许多 teams。因此，团队模型与 Organization 和 Collaboration 具有多态关联。
我想做的是 organization.teams 并反映组织中的所有团队以及协作中的所有团队都是组织的一部分。
表格
*organizations*
ID
user_iD
title
...
*collaborations*
ID
organization_ID
title
...
*teams*
ID
teamable_ID
teamable_type
title
...
模型
class Organization < ApplicationRecord
has_many :orgaization_teams,as: :teamable,class_name: "Team"
has_many :collaboration_teams,through: :collaborations,source: :teams,class_name: "Team"
end
class Collaboration < ApplicationRecord
belongs_to :organization
has_many :teams,as: :teamable
end
class Team < ApplicationRecord
belongs_to :teamable,polymorphic: true
belongs_to :organization,-> { joins(:teams).where(teams: {teamable_type: 'Organization'}) },foreign_key: 'teamable_ID'
belongs_to :collaboration,-> { joins(:teams).where(teams: {teamable_type: 'Collaboration'}) },foreign_key: 'teamable_ID'
end
尝试
尝试 #1
class Organization < ApplicationRecord
has_many :teams,-> { joins(:organization,:collaboration) },source: :teamable
end
结果： SystemStackerror（堆栈级别太深）
尝试#2
class Organization < ApplicationRecord
def teams
orgaization_teams.or(collaboration_teams)
end
end
结果： ArgumentError（传递给 #or 的关系必须在结构上兼容。不兼容的值：[:joins]）
潜在解决方案
我正在考虑将 Team 上的多态关联分离为 {{1}} 和 organization_ID
所以新表看起来像这样：
collaboration_ID我会用两个单独的外键代替：
/index.html http/1.1" 404 208 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0"
192.168.1.142 - - [30/Sep/2016:16:18:43 -0400] "GET / http/1.1" 403 4897 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0"
192.168.1.142 - - [30/Sep/2016:16:18:43 -0400] "GET /noindex/css/fonts/Light/OpenSans-Light.woff http/1.1" 404 241 "http://optiplex360/noindex/css/open-sans.css" "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0"
192.168.1.142 - - [30/Sep/2016:16:18:43 -0400] "GET /noindex/css/fonts/Bold/OpenSans-Bold.woff http/1.1" 404 239 "http://optiplex360/noindex/css/open-sans.css" "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0"
192.168.1.142 - - [30/Sep/2016:16:18:43 -0400] "GET /noindex/css/fonts/Light/OpenSans-Light.ttf http/1.1" 404 240 "http://optiplex360/noindex/css/open-sans.css" "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0"
192.168.1.142 - - [30/Sep/2016:16:18:43 -0400] "GET /noindex/css/fonts/Bold/OpenSans-Bold.ttf http/1.1" 404 238 "http://optiplex360/noindex/css/open-sans.css" "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0"
192.168.1.142 - - [30/Sep/2016:16:18:53 -0400] "GET /first http/1.1" 404 203 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0"
192.168.1.1 - - [30/Sep/2016:16:19:00 -0400] "GET /HNAP1/ http/1.1" 404 204 "-" "-"
192.168.1.1 - - [30/Sep/2016:16:19:00 -0400] "GET / http/1.1" 403 4897 "-" "-"
192.168.1.1 - - [30/Sep/2016:16:19:00 -0400] "POST /JNAP/ http/1.1" 404 203 "-" "-"
192.168.1.1 - - [30/Sep/2016:16:19:00 -0400] "POST /JNAP/ http/1.1" 404 203 "-" "-"
如果您想获得直接属于您想要的组织或其协作的团队：
#!/usr/bin/env python
import boto3
ec2 = boto3.resource('ec2')
ec2client = boto3.client('ec2')
#-----Define Lambda function-----#
def lambda_handler(event,context):
#-----check& filter Instances which Instance State is running-----#
instances = ec2client.describe_instances(
Filters=[{
'Name': 'instance-state-name','Values': ['pending','running']
}]
)
#-----Define Dictionary to store Tag Key & value------#
Dict={}
myTags = [{
"Key" : "test_key","Value" : "test_value"
}]
#-----Store Key & Value of Instance ------#
for reservation in instances['Reservations']:
for instance in reservation['Instances']:
ec2.create_tags(
resources = [instance["InstancEID"] ],Tags = myTags)
for tag in instance['Tags']:
if tag['Key'] == 'Name':
print ( instance['InstancEID'],tag['Value'])
#ids.append(( instance['InstancEID'],tag['Value']))
Dict[instance['InstancEID']]= tag['Value']
#-----Store Key & Value with attached instance ID of all volumes ------#
volumes = ec2.volumes.all()
for volume in volumes:
#-----compare Dictionary value Key:InstancEID and volume attached Key:InstancEID ------#
for a in volume.attachments:
for key,value in Dict.items():
#-----Add tags to volumes ------#
if a['InstancEID'] == key:
volume.create_tags(tags =[{
'Key': 'test_key','Value': 'test_value'}
])
我不认为这实际上可以写成关联，因为它在结构上过于复杂。
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