Here's my error:
Mysql::Error: #42S02Table 'ncsite_development.permissions_projects' doesn't exist: SHOW FIELDS FROM permissions_projects


My controller code:
project = Project.find(params["association"]["projectid"])
project.add_permissions(params["association"]["permissionid"])

My table:
projects_permissions

permission.rb (model)
has_and_belongs_to_many :projects

project.rb (model)
has_and_belongs_to_many :permissions

Why doesn't rails look also for a "projects_permissions" table ?

Thanks