init project

app/libs/util/file_manage.rb

@@ -0,0 +1,67 @@
+module Util::FileManage
+  module_function
+
+  # 不同的类型扩展不同的目录
+  def relative_path
+    "avatars"
+  end
+
+  def storage_path
+    File.join(Rails.root, "public", "images", relative_path)
+  end
+
+  def disk_filename(source_type, source_id, suffix=nil)
+    File.join(storage_path, "#{source_type}", "#{source_id}#{suffix}")
+  end
+
+  def source_disk_filename(source, suffix=nil)
+    disk_filename(source.class.name, source.id, suffix)
+  end
+
+  def exist?(source_type, source_id, suffix=nil)
+    File.exist?(disk_filename(source_type, source_id, suffix))
+  end
+
+  def exists?(source, suffix=nil)
+    File.exist?(disk_filename(source.class, source.id, suffix))
+  end
+
+  def disk_file_url(source_type, source_id, suffix = nil)
+    t = ctime(source_type, source_id, suffix)
+    File.join('/images', relative_path, "#{source_type}", "#{source_id}#{suffix}") + "?t=#{t}"
+  end
+
+  def source_disk_file_url(source, suffix=nil)
+    disk_file_url(source.class, source.id, suffix)
+  end
+
+  def ctime(source_type, source_id, suffix)
+    return nil unless exist?(source_type, source_id, suffix)
+
+    File.ctime(disk_filename(source_type, source_id, suffix)).to_i
+  end
+
+  def disk_auth_filename(source_type, source_id, type)
+    File.join(storage_path, "#{source_type}", "#{source_id}#{type}")
+  end
+
+  def disk_real_name_auth_filename(source_id)
+    disk_auth_filename('UserAuthentication', source_id, 'ID')
+  end
+
+  def auth_file_url(source_type, source_id, type)
+    disk_file_url(source_type, source_id, type)
+  end
+
+  def real_name_auth_file_url(source_id)
+    auth_file_url('UserAuthentication', source_id, 'ID')
+  end
+
+  def disk_professional_auth_filename(source_id)
+    disk_auth_filename('UserAuthentication', source_id, 'PRO')
+  end
+
+  def professional_auth_file_url(source_id)
+    auth_file_url('UserAuthentication', source_id, 'PRO')
+  end
+end

app/libs/util/redis.rb

@@ -0,0 +1,9 @@
+module Util::Redis
+  class << self
+    def online_user_count
+      if Rails.cache.is_a?(ActiveSupport::Cache::RedisStore)
+        Rails.cache.data.scan(0, match: 'cache:_session_id:*', count: 100000).last.uniq.size
+      end
+    end
+  end
+end

app/libs/util/uuid.rb

@@ -0,0 +1,27 @@
+module Util
+  module UUID
+    module_function
+
+    DCODES = %W(2 3 4 5 6 7 8 9 a b c f e f g h i j k l m n o p q r s t u v w x y z)
+
+    def time_uuid(format: '%Y%m%d%H%M%S', suffix: 8)
+      "#{Time.zone.now.strftime(format)}#{Random.rand(10**suffix).to_i}"
+    end
+
+    # 随机生成字符
+    def generate_identifier(container, num, pre='')
+      code = DCODES.sample(num).join
+      if container == User
+        while container.exists?(login: pre+code) do
+          code = DCODES.sample(num).join
+        end
+      else
+        while container.exists?(identifier: code) do
+          code = DCODES.sample(num).join
+        end
+      end
+      code
+    end
+
+  end
+end