Mixing
single model to have two file attachment columns - Rails 4 + Paperclip
I have a custom model which uses attachment model in rails.
My attachment model looks something like this
class Attachment < ActiveRecord::Base
belongs_to :attachable, polymorphic: true
has_attached_file :file, styles: { logo: ['200x50>',:png] }
end
and the other model that uses the attachment looks something like this
class User < ActiveRecord::Base
has_many :attachments, as: :attachable, dependent: :destroy
end
I want user model to have another attachment different from the one I have already setup to upload logo, something like this
has_one :user_logo, -> {where attachable_type: "UserLogo"}, class_name: "Attachment", foreign_key: :attachable_id, foreign_type: :attachable_type, dependent: :destroy
but when I try to access attachment.attachable I get
undefined UserLogo as **UserLogo** is not a model.
Can anyone please suggest what changes can I make so that attachment.attachable works for both attachment type.
so for example
when i execute something like this
att = Attachment.find(3) #assume it returns attachable type as User
so att.attachable returns user object
but when i execute
att = Attachment.find(3) #assume it returns attachable type as UserLogo
so att.attachable returns exception wrong constant name UserLogo
how can i access User object from both attachment types. Thanks
ruby-on-rails ruby ruby-on-rails-4 paperclip
asked Nov 19 '18 at 18:06
opensource-developeropensource-developer
53411031
add a comment |
I have a custom model which uses attachment model in rails.
My attachment model looks something like this
class Attachment < ActiveRecord::Base
belongs_to :attachable, polymorphic: true
has_attached_file :file, styles: { logo: ['200x50>',:png] }
end
and the other model that uses the attachment looks something like this
class User < ActiveRecord::Base
has_many :attachments, as: :attachable, dependent: :destroy
end
I want user model to have another attachment different from the one I have already setup to upload logo, something like this
has_one :user_logo, -> {where attachable_type: "UserLogo"}, class_name: "Attachment", foreign_key: :attachable_id, foreign_type: :attachable_type, dependent: :destroy
but when I try to access attachment.attachable I get
undefined UserLogo as **UserLogo** is not a model.
Can anyone please suggest what changes can I make so that attachment.attachable works for both attachment type.
so for example
when i execute something like this
att = Attachment.find(3) #assume it returns attachable type as User
so att.attachable returns user object
but when i execute
att = Attachment.find(3) #assume it returns attachable type as UserLogo
so att.attachable returns exception wrong constant name UserLogo
how can i access User object from both attachment types. Thanks
ruby-on-rails ruby ruby-on-rails-4 paperclip
asked Nov 19 '18 at 18:06
opensource-developeropensource-developer
53411031
add a comment |
I have a custom model which uses attachment model in rails.
My attachment model looks something like this
class Attachment < ActiveRecord::Base
belongs_to :attachable, polymorphic: true
has_attached_file :file, styles: { logo: ['200x50>',:png] }
end
and the other model that uses the attachment looks something like this
class User < ActiveRecord::Base
has_many :attachments, as: :attachable, dependent: :destroy
end
I want user model to have another attachment different from the one I have already setup to upload logo, something like this
has_one :user_logo, -> {where attachable_type: "UserLogo"}, class_name: "Attachment", foreign_key: :attachable_id, foreign_type: :attachable_type, dependent: :destroy
but when I try to access attachment.attachable I get
undefined UserLogo as **UserLogo** is not a model.
Can anyone please suggest what changes can I make so that attachment.attachable works for both attachment type.
so for example
when i execute something like this
att = Attachment.find(3) #assume it returns attachable type as User
so att.attachable returns user object
but when i execute
att = Attachment.find(3) #assume it returns attachable type as UserLogo
so att.attachable returns exception wrong constant name UserLogo
how can i access User object from both attachment types. Thanks
ruby-on-rails ruby ruby-on-rails-4 paperclip
asked Nov 19 '18 at 18:06
opensource-developeropensource-developer
53411031
I have a custom model which uses attachment model in rails.
My attachment model looks something like this
class Attachment < ActiveRecord::Base
belongs_to :attachable, polymorphic: true
has_attached_file :file, styles: { logo: ['200x50>',:png] }
end
and the other model that uses the attachment looks something like this
class User < ActiveRecord::Base
has_many :attachments, as: :attachable, dependent: :destroy
end
I want user model to have another attachment different from the one I have already setup to upload logo, something like this
has_one :user_logo, -> {where attachable_type: "UserLogo"}, class_name: "Attachment", foreign_key: :attachable_id, foreign_type: :attachable_type, dependent: :destroy
but when I try to access attachment.attachable I get
undefined UserLogo as **UserLogo** is not a model.
Can anyone please suggest what changes can I make so that attachment.attachable works for both attachment type.
so for example
when i execute something like this
att = Attachment.find(3) #assume it returns attachable type as User
so att.attachable returns user object
but when i execute
att = Attachment.find(3) #assume it returns attachable type as UserLogo
so att.attachable returns exception wrong constant name UserLogo
how can i access User object from both attachment types. Thanks
ruby-on-rails ruby ruby-on-rails-4 paperclip
ruby-on-rails ruby ruby-on-rails-4 paperclip
asked Nov 19 '18 at 18:06
opensource-developeropensource-developer
53411031
asked Nov 19 '18 at 18:06
opensource-developeropensource-developer
53411031
edited Nov 20 '18 at 8:45
opensource-developer
asked Nov 19 '18 at 18:06
opensource-developeropensource-developer
53411031
asked Nov 19 '18 at 18:06
opensource-developeropensource-developer
53411031
asked Nov 19 '18 at 18:06
opensource-developeropensource-developer
53411031
53411031
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Keep your attachable type 'User' which will be clean polymorphic. Define type field inside 'Attachment' model having two values logo & file
Association will get updated as below
class User < ActiveRecord::Base
has_many :attachments, -> {where type: "file"}, as: :attachable, dependent: :destroy
has_one :user_logo, -> {where type: "logo"}, class_name: "Attachment", foreign_key: :attachable_id, foreign_type: :attachable_type, dependent: :destroy
end
I suggest you to have different styles for attachment depends on what type it have (logo/file). Validation for attachment type also vary as per type.
has_attached_file :file, styles: ->(file){ file.instance.get_styles }
validates_attachment_content_type :file, :content_type: [..], if: -> { type == 'logo' }
validates_attachment_content_type :file, :content_type: [..], if: -> { type == 'file' }
def get_styles
if self.type == 'logo'
style1
elsif self.type == 'file'
style2
end
end
Please update status or any query you u get further.
Update - answering to further question
First Way: If you are using UserLogo as an attachable_type in Attachment, then it do not follow polymorphic association so define custom association.
belongs_to :resource,
-> { |attachment| ['User', 'UserLogo'].include? attachment.attachable },
class_name: 'User',
foreign_key: :attachable_id
belongs_to :belongs_to :attachable,
-> { |attachment| ['User', 'UserLogo'].exclude? attachment.attachable_type },
class_name: :attachable_type,
foreign_key: :attachable_id
Second Way: Create UserLogo class extending User class. It will find UserLogo with same User data
answered Nov 20 '18 at 6:17
rayray
1,380219
Hi @ray, thanks for your reply. I still get a exception, i have updated the question with sample example, can you please check? Thanks
– opensource-developer
Nov 20 '18 at 8:38
so my main question is how can i access user object when attachment type is logo
– opensource-developer
Nov 20 '18 at 8:47
@opensource-developer I have not tried so not pretty sure, but it should work, check update in my answer
– ray
Nov 20 '18 at 9:56
Thanks @ray, the second way worked for me :)
– opensource-developer
Nov 20 '18 at 16:47
@opensource-developer my pleasure :)
– ray
Nov 21 '18 at 6:46
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Keep your attachable type 'User' which will be clean polymorphic. Define type field inside 'Attachment' model having two values logo & file
Association will get updated as below
class User < ActiveRecord::Base
has_many :attachments, -> {where type: "file"}, as: :attachable, dependent: :destroy
has_one :user_logo, -> {where type: "logo"}, class_name: "Attachment", foreign_key: :attachable_id, foreign_type: :attachable_type, dependent: :destroy
end
I suggest you to have different styles for attachment depends on what type it have (logo/file). Validation for attachment type also vary as per type.
has_attached_file :file, styles: ->(file){ file.instance.get_styles }
validates_attachment_content_type :file, :content_type: [..], if: -> { type == 'logo' }
validates_attachment_content_type :file, :content_type: [..], if: -> { type == 'file' }
def get_styles
if self.type == 'logo'
style1
elsif self.type == 'file'
style2
end
end
Please update status or any query you u get further.
Update - answering to further question
First Way: If you are using UserLogo as an attachable_type in Attachment, then it do not follow polymorphic association so define custom association.
belongs_to :resource,
-> { |attachment| ['User', 'UserLogo'].include? attachment.attachable },
class_name: 'User',
foreign_key: :attachable_id
belongs_to :belongs_to :attachable,
-> { |attachment| ['User', 'UserLogo'].exclude? attachment.attachable_type },
class_name: :attachable_type,
foreign_key: :attachable_id
Second Way: Create UserLogo class extending User class. It will find UserLogo with same User data
answered Nov 20 '18 at 6:17
rayray
1,380219
Hi @ray, thanks for your reply. I still get a exception, i have updated the question with sample example, can you please check? Thanks
– opensource-developer
Nov 20 '18 at 8:38
so my main question is how can i access user object when attachment type is logo
– opensource-developer
Nov 20 '18 at 8:47
@opensource-developer I have not tried so not pretty sure, but it should work, check update in my answer
– ray
Nov 20 '18 at 9:56
Thanks @ray, the second way worked for me :)
– opensource-developer
Nov 20 '18 at 16:47
@opensource-developer my pleasure :)
– ray
Nov 21 '18 at 6:46
add a comment |
Keep your attachable type 'User' which will be clean polymorphic. Define type field inside 'Attachment' model having two values logo & file
Association will get updated as below
class User < ActiveRecord::Base
has_many :attachments, -> {where type: "file"}, as: :attachable, dependent: :destroy
has_one :user_logo, -> {where type: "logo"}, class_name: "Attachment", foreign_key: :attachable_id, foreign_type: :attachable_type, dependent: :destroy
end
I suggest you to have different styles for attachment depends on what type it have (logo/file). Validation for attachment type also vary as per type.
has_attached_file :file, styles: ->(file){ file.instance.get_styles }
validates_attachment_content_type :file, :content_type: [..], if: -> { type == 'logo' }
validates_attachment_content_type :file, :content_type: [..], if: -> { type == 'file' }
def get_styles
if self.type == 'logo'
style1
elsif self.type == 'file'
style2
end
end
Please update status or any query you u get further.
Update - answering to further question
First Way: If you are using UserLogo as an attachable_type in Attachment, then it do not follow polymorphic association so define custom association.
belongs_to :resource,
-> { |attachment| ['User', 'UserLogo'].include? attachment.attachable },
class_name: 'User',
foreign_key: :attachable_id
belongs_to :belongs_to :attachable,
-> { |attachment| ['User', 'UserLogo'].exclude? attachment.attachable_type },
class_name: :attachable_type,
foreign_key: :attachable_id
Second Way: Create UserLogo class extending User class. It will find UserLogo with same User data
answered Nov 20 '18 at 6:17
rayray
1,380219
Hi @ray, thanks for your reply. I still get a exception, i have updated the question with sample example, can you please check? Thanks
– opensource-developer
Nov 20 '18 at 8:38
so my main question is how can i access user object when attachment type is logo
– opensource-developer
Nov 20 '18 at 8:47
@opensource-developer I have not tried so not pretty sure, but it should work, check update in my answer
– ray
Nov 20 '18 at 9:56
Thanks @ray, the second way worked for me :)
– opensource-developer
Nov 20 '18 at 16:47
@opensource-developer my pleasure :)
– ray
Nov 21 '18 at 6:46
add a comment |
Keep your attachable type 'User' which will be clean polymorphic. Define type field inside 'Attachment' model having two values logo & file
Association will get updated as below
class User < ActiveRecord::Base
has_many :attachments, -> {where type: "file"}, as: :attachable, dependent: :destroy
has_one :user_logo, -> {where type: "logo"}, class_name: "Attachment", foreign_key: :attachable_id, foreign_type: :attachable_type, dependent: :destroy
end
I suggest you to have different styles for attachment depends on what type it have (logo/file). Validation for attachment type also vary as per type.
has_attached_file :file, styles: ->(file){ file.instance.get_styles }
validates_attachment_content_type :file, :content_type: [..], if: -> { type == 'logo' }
validates_attachment_content_type :file, :content_type: [..], if: -> { type == 'file' }
def get_styles
if self.type == 'logo'
style1
elsif self.type == 'file'
style2
end
end
Please update status or any query you u get further.
Update - answering to further question
First Way: If you are using UserLogo as an attachable_type in Attachment, then it do not follow polymorphic association so define custom association.
belongs_to :resource,
-> { |attachment| ['User', 'UserLogo'].include? attachment.attachable },
class_name: 'User',
foreign_key: :attachable_id
belongs_to :belongs_to :attachable,
-> { |attachment| ['User', 'UserLogo'].exclude? attachment.attachable_type },
class_name: :attachable_type,
foreign_key: :attachable_id
Second Way: Create UserLogo class extending User class. It will find UserLogo with same User data
answered Nov 20 '18 at 6:17
rayray
1,380219
Keep your attachable type 'User' which will be clean polymorphic. Define type field inside 'Attachment' model having two values logo & file
Association will get updated as below
class User < ActiveRecord::Base
has_many :attachments, -> {where type: "file"}, as: :attachable, dependent: :destroy
has_one :user_logo, -> {where type: "logo"}, class_name: "Attachment", foreign_key: :attachable_id, foreign_type: :attachable_type, dependent: :destroy
end
I suggest you to have different styles for attachment depends on what type it have (logo/file). Validation for attachment type also vary as per type.
has_attached_file :file, styles: ->(file){ file.instance.get_styles }
validates_attachment_content_type :file, :content_type: [..], if: -> { type == 'logo' }
validates_attachment_content_type :file, :content_type: [..], if: -> { type == 'file' }
def get_styles
if self.type == 'logo'
style1
elsif self.type == 'file'
style2
end
end
Please update status or any query you u get further.
Update - answering to further question
First Way: If you are using UserLogo as an attachable_type in Attachment, then it do not follow polymorphic association so define custom association.
belongs_to :resource,
-> { |attachment| ['User', 'UserLogo'].include? attachment.attachable },
class_name: 'User',
foreign_key: :attachable_id
belongs_to :belongs_to :attachable,
-> { |attachment| ['User', 'UserLogo'].exclude? attachment.attachable_type },
class_name: :attachable_type,
foreign_key: :attachable_id
Second Way: Create UserLogo class extending User class. It will find UserLogo with same User data
answered Nov 20 '18 at 6:17
rayray
1,380219
edited Nov 20 '18 at 9:56
answered Nov 20 '18 at 6:17
rayray
1,380219
answered Nov 20 '18 at 6:17
rayray
1,380219
answered Nov 20 '18 at 6:17
rayray
1,380219
1,380219
Hi @ray, thanks for your reply. I still get a exception, i have updated the question with sample example, can you please check? Thanks
– opensource-developer
Nov 20 '18 at 8:38
so my main question is how can i access user object when attachment type is logo
– opensource-developer
Nov 20 '18 at 8:47
@opensource-developer I have not tried so not pretty sure, but it should work, check update in my answer
– ray
Nov 20 '18 at 9:56
Thanks @ray, the second way worked for me :)
– opensource-developer
Nov 20 '18 at 16:47
@opensource-developer my pleasure :)
– ray
Nov 21 '18 at 6:46
add a comment |
Hi @ray, thanks for your reply. I still get a exception, i have updated the question with sample example, can you please check? Thanks
– opensource-developer
Nov 20 '18 at 8:38
so my main question is how can i access user object when attachment type is logo
– opensource-developer
Nov 20 '18 at 8:47
@opensource-developer I have not tried so not pretty sure, but it should work, check update in my answer
– ray
Nov 20 '18 at 9:56
Thanks @ray, the second way worked for me :)
– opensource-developer
Nov 20 '18 at 16:47
@opensource-developer my pleasure :)
– ray
Nov 21 '18 at 6:46
Hi @ray, thanks for your reply. I still get a exception, i have updated the question with sample example, can you please check? Thanks
– opensource-developer
Nov 20 '18 at 8:38
Hi @ray, thanks for your reply. I still get a exception, i have updated the question with sample example, can you please check? Thanks
– opensource-developer
Nov 20 '18 at 8:38
so my main question is how can i access user object when attachment type is logo
– opensource-developer
Nov 20 '18 at 8:47
so my main question is how can i access user object when attachment type is logo
– opensource-developer
Nov 20 '18 at 8:47
@opensource-developer I have not tried so not pretty sure, but it should work, check update in my answer
– ray
Nov 20 '18 at 9:56
@opensource-developer I have not tried so not pretty sure, but it should work, check update in my answer
– ray
Nov 20 '18 at 9:56
Thanks @ray, the second way worked for me :)
– opensource-developer
Nov 20 '18 at 16:47
Thanks @ray, the second way worked for me :)
– opensource-developer
Nov 20 '18 at 16:47
@opensource-developer my pleasure :)
– ray
Nov 21 '18 at 6:46
@opensource-developer my pleasure :)
– ray
Nov 21 '18 at 6:46
add a comment |
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