init project

app/forms/projects/create_form.rb

@@ -0,0 +1,23 @@
+class Projects::CreateForm < BaseForm
+  REPOSITORY_NAME_REGEX = /^(?!_)(?!.*?_$)[a-zA-Z0-9_-]+$/ #只含有数字、字母、下划线不能以下划线开头和结尾
+  attr_accessor :user_id, :name, :description, :repository_name, :project_category_id,
+                :project_language_id, :ignore_id, :license_id, :private
+
+  validates :user_id, :name, :description,:repository_name,
+            :project_category_id, :project_language_id, presence: true
+  validates :repository_name, format: { with: REPOSITORY_NAME_REGEX, multiline: true, message: "只能含有数字、字母、下划线且不能以下划线开头和结尾" }
+
+  validate :check_ignore, :check_license
+  validate do
+    check_project_category(project_category_id)
+    check_project_language(project_language_id)
+  end
+
+  def check_license
+    raise "license_id值无效. " if license_id && License.find_by(id: license_id).blank?
+  end
+
+  def check_ignore
+    raise "ignore_id值无效." if ignore_id && Ignore.find_by(id: ignore_id).blank?
+  end
+end