Rails: Creating/updating has_many relationships for existing has_many recordsRails has_many with alias nameBug? I've to mass-assign params two times to update has_many associationMongoid - Updating Nested AttributesRails find record with zero has_many records associatedCreating / updating locations while creating a checkin in RailsCan't Mass assign attributes with nested formRails has_many :through with :primary_keyAdding Role dynamically through Form USing Rolify along with Devise and CancanRails 4 accepts_nested_attributes_for for has_many through relationship: :_destroy is not workingRails 4 relationships and Postgres foreign key constraints
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Rails: Creating/updating has_many relationships for existing has_many records
Rails has_many with alias nameBug? I've to mass-assign params two times to update has_many associationMongoid - Updating Nested AttributesRails find record with zero has_many records associatedCreating / updating locations while creating a checkin in RailsCan't Mass assign attributes with nested formRails has_many :through with :primary_keyAdding Role dynamically through Form USing Rolify along with Devise and CancanRails 4 accepts_nested_attributes_for for has_many through relationship: :_destroy is not workingRails 4 relationships and Postgres foreign key constraints
Given:
class Group < ApplicationRecord
has_many :customers, inverse_of: :group
accepts_nested_attributes_for :customers, allow_destroy: true
end
class Customer < ApplicationRecord
belongs_to :group, inverse_of: :customers
end
I want to create/update a group and assign existing customers to the group e.g.:
Group.new(customers_attributes: [ id: 1 , id: 2 ])
This does not work though because Rails will just throw ActiveRecord::RecordNotFound: Couldn't find Customer with ID=1 for Group with ID= (or ID=the_group_id if I'm updating a Group). Only way I've found to fix it is just extract customers_attributes and then do a separate Customer.where(id: [1,2]).update_all(group_id: 'groups_id') after the Group save! call.
Anyone else come across this? I feel like a way to fix it would be to have a key like _existing: true inside customers_attributes (much like _destroy: true is used to nullify the foreign key) could work. Or does something like this violate a Rails principle that I'm not seeing?
ruby-on-rails ruby has-many
asked Mar 7 at 12:52
user701847user701847
166113
add a comment |
Given:
class Group < ApplicationRecord
has_many :customers, inverse_of: :group
accepts_nested_attributes_for :customers, allow_destroy: true
end
class Customer < ApplicationRecord
belongs_to :group, inverse_of: :customers
end
I want to create/update a group and assign existing customers to the group e.g.:
Group.new(customers_attributes: [ id: 1 , id: 2 ])
This does not work though because Rails will just throw ActiveRecord::RecordNotFound: Couldn't find Customer with ID=1 for Group with ID= (or ID=the_group_id if I'm updating a Group). Only way I've found to fix it is just extract customers_attributes and then do a separate Customer.where(id: [1,2]).update_all(group_id: 'groups_id') after the Group save! call.
Anyone else come across this? I feel like a way to fix it would be to have a key like _existing: true inside customers_attributes (much like _destroy: true is used to nullify the foreign key) could work. Or does something like this violate a Rails principle that I'm not seeing?
ruby-on-rails ruby has-many
asked Mar 7 at 12:52
user701847user701847
166113
add a comment |
Given:
class Group < ApplicationRecord
has_many :customers, inverse_of: :group
accepts_nested_attributes_for :customers, allow_destroy: true
end
class Customer < ApplicationRecord
belongs_to :group, inverse_of: :customers
end
I want to create/update a group and assign existing customers to the group e.g.:
Group.new(customers_attributes: [ id: 1 , id: 2 ])
This does not work though because Rails will just throw ActiveRecord::RecordNotFound: Couldn't find Customer with ID=1 for Group with ID= (or ID=the_group_id if I'm updating a Group). Only way I've found to fix it is just extract customers_attributes and then do a separate Customer.where(id: [1,2]).update_all(group_id: 'groups_id') after the Group save! call.
Anyone else come across this? I feel like a way to fix it would be to have a key like _existing: true inside customers_attributes (much like _destroy: true is used to nullify the foreign key) could work. Or does something like this violate a Rails principle that I'm not seeing?
ruby-on-rails ruby has-many
asked Mar 7 at 12:52
user701847user701847
166113
Given:
class Group < ApplicationRecord
has_many :customers, inverse_of: :group
accepts_nested_attributes_for :customers, allow_destroy: true
end
class Customer < ApplicationRecord
belongs_to :group, inverse_of: :customers
end
I want to create/update a group and assign existing customers to the group e.g.:
Group.new(customers_attributes: [ id: 1 , id: 2 ])
This does not work though because Rails will just throw ActiveRecord::RecordNotFound: Couldn't find Customer with ID=1 for Group with ID= (or ID=the_group_id if I'm updating a Group). Only way I've found to fix it is just extract customers_attributes and then do a separate Customer.where(id: [1,2]).update_all(group_id: 'groups_id') after the Group save! call.
Anyone else come across this? I feel like a way to fix it would be to have a key like _existing: true inside customers_attributes (much like _destroy: true is used to nullify the foreign key) could work. Or does something like this violate a Rails principle that I'm not seeing?
ruby-on-rails ruby has-many
ruby-on-rails ruby has-many
asked Mar 7 at 12:52
user701847user701847
166113
asked Mar 7 at 12:52
user701847user701847
166113
asked Mar 7 at 12:52
user701847user701847
166113
asked Mar 7 at 12:52
user701847user701847
166113
asked Mar 7 at 12:52
user701847user701847
166113
166113
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Actually, you don't need to use nested attributes for this, you can instead set the association_ids attribute directly:
Group.new(customer_ids: [1, 2])
This will automatically update the group_id on each referenced Customer when the record is saved.
answered Mar 7 at 13:17
James PageJames Page
111
1
Ah, I forgot to mention that. So while that's fine for creating a new group, if you do that when updating a group, it erases any previous customers that may have been attached to thatGroup. I'm kind of looking for an all-in-one solution.
– user701847
Mar 7 at 13:20
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Actually, you don't need to use nested attributes for this, you can instead set the association_ids attribute directly:
Group.new(customer_ids: [1, 2])
This will automatically update the group_id on each referenced Customer when the record is saved.
answered Mar 7 at 13:17
James PageJames Page
111
1
Ah, I forgot to mention that. So while that's fine for creating a new group, if you do that when updating a group, it erases any previous customers that may have been attached to thatGroup. I'm kind of looking for an all-in-one solution.
– user701847
Mar 7 at 13:20
add a comment |
Actually, you don't need to use nested attributes for this, you can instead set the association_ids attribute directly:
Group.new(customer_ids: [1, 2])
This will automatically update the group_id on each referenced Customer when the record is saved.
answered Mar 7 at 13:17
James PageJames Page
111
1
Ah, I forgot to mention that. So while that's fine for creating a new group, if you do that when updating a group, it erases any previous customers that may have been attached to thatGroup. I'm kind of looking for an all-in-one solution.
– user701847
Mar 7 at 13:20
add a comment |
Actually, you don't need to use nested attributes for this, you can instead set the association_ids attribute directly:
Group.new(customer_ids: [1, 2])
This will automatically update the group_id on each referenced Customer when the record is saved.
answered Mar 7 at 13:17
James PageJames Page
111
Actually, you don't need to use nested attributes for this, you can instead set the association_ids attribute directly:
Group.new(customer_ids: [1, 2])
This will automatically update the group_id on each referenced Customer when the record is saved.
answered Mar 7 at 13:17
James PageJames Page
111
answered Mar 7 at 13:17
James PageJames Page
111
answered Mar 7 at 13:17
James PageJames Page
111
answered Mar 7 at 13:17
James PageJames Page
111
111
1
Ah, I forgot to mention that. So while that's fine for creating a new group, if you do that when updating a group, it erases any previous customers that may have been attached to thatGroup. I'm kind of looking for an all-in-one solution.
– user701847
Mar 7 at 13:20
add a comment |
1
Ah, I forgot to mention that. So while that's fine for creating a new group, if you do that when updating a group, it erases any previous customers that may have been attached to thatGroup. I'm kind of looking for an all-in-one solution.
– user701847
Mar 7 at 13:20
1
1
Ah, I forgot to mention that. So while that's fine for creating a new group, if you do that when updating a group, it erases any previous customers that may have been attached to that
Group. I'm kind of looking for an all-in-one solution.– user701847
Mar 7 at 13:20
Ah, I forgot to mention that. So while that's fine for creating a new group, if you do that when updating a group, it erases any previous customers that may have been attached to that
Group. I'm kind of looking for an all-in-one solution.– user701847
Mar 7 at 13:20
add a comment |
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