has-and-belongs-to-many

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Storing selected product options in a shopping cart in CakePHP

I am building a shopping cart in CakePHP and currently have the following relationships: Product HABTM (HasAndBelongsToMany) Options[详细]

2023-03-02 16:10 分类：问答
is this a really bad way to do queries across multiple HABTM models?

I am trying to query across two HABTM tables.I have Leases Managers Tenants Properties. Managers HABTM Tenants[详细]

2023-03-02 00:29 分类：问答
Belongs_to too many columns ID

I\'m trying to create a Matches table. This matches table will look to get it\'s information from a Teams table. I\'m having trouble getting the association to work.[详细]

2023-03-01 11:40 分类：问答
Containable unexpected behavior in related models

We have the Ebooks HABTM Tags. And we try to select the Ebooks that have belong to the tag with id=160.[详细]

2023-02-28 05:23 分类：问答
Rails: efficiently check if keywords in a model match content in another model?

How can I efficiently check several thousand rows against a table of keywords? I have two tables, Essays and Tags. They are tied together by a has_and_belongs_to_many association.[详细]

2023-02-27 22:15 分类：问答
Rails Roles / Permissions in a HABTM Relationship -- managing the relationship

I have created the following tables in my application - roles, permissions and permissions_roles.Roles HABTM permissions, and permissions HABTM roles.I have seen many tutorials on setting up all of th[详细]

2023-02-26 08:01 分类：问答
MySQL INTERSECT via joins table?

So essentially I have t开发者_运维问答wo tables, containing URLS and TAGS, with a has-and-belongs-to-many relationship between the two via a joins tables TAGS_URLS.[详细]

2023-02-25 17:38 分类：问答
Rails habtm grief am I dumb or rails bug? (desperate ; )

Greetings all, I\'m having a weird problem with a habtm relationship and honestly I\'m beginning to think I may have stumbled upon some weird bug in rails 3.Surely I\'m crazy though.I\'ve been beatin[详细]

2023-02-24 08:17 分类：问答
CakePHP - problem with HABTM paginate query

Tables restaurants cuisines cuisines_restaurants Both restaurant and cuisine model are set up to HABTM each other.[详细]

2023-02-24 06:04 分类：问答
Best way to specify a default record for a has_many relationship in rails

I have Accounts and AccountAddressess.An account can have many AccountAddressess and I would like to specify one as the \"default_account_address\", so in the Account table, I have a column named \"de[详细]

2023-02-22 18:51 分类：问答