我正在为我的网站开发一个作品集,我决定在每个作品展示中添加技能标签。
class PortfolioSkill < ApplicationRecord
belongs_to :portfolio
belongs_to :skill
end
class Portfolio < ApplicationRecord
has_many :portfolio_skills
has_many :skills, through: :portfolio_skills
def all_tags=(names)
self.skills = names.split(",").map do |name|
Skill.where(name: name.strip).first_or_create!
end
end
def all_tags
self.skills.map(&:name).join(", ")
end
def remove_skill_tags
PortfolioSkill.where(portfolio_id: id).destroy_all
end
end
create_table "portfolio_skills", force: :cascade do |t|
t.integer "portfolio_id"
t.integer "skill_id"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["portfolio_id"], name: "index_portfolio_skills_on_portfolio_id"
t.index ["skill_id"], name: "index_portfolio_skills_on_skill_id"
end
create_table "portfolios", force: :cascade do |t|
t.string "name"
t.string "client"
t.date "completed"
t.text "about"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.string "long_landscape"
t.string "cover"
t.integer "category_id"
t.index ["category_id"], name: "index_portfolios_on_category_id"
end
当我在主页点击“destroy”时,我会得到以下信息:
SQLite3::ConstraintException: FOREIGN KEY constraint failed: DELETE FROM "portfolios" WHERE "portfolios"."id" = ?
出现错误。所有关联看起来都是正确的。我在其他模型上使用了相同的模式来标记标签,并且没有任何问题。希望能得到帮助。