init project

app/services/users/project_service.rb

@@ -0,0 +1,51 @@
+class Users::ProjectService
+  include CustomSortable
+
+  sort_columns :created_on, :updated_on, default_by: :updated_on, default_direction: :desc
+
+  attr_reader :user, :params
+
+  def initialize(user, params)
+    @user   = user
+    @params = params
+  end
+
+  def call
+    projects = Project.joins(members: :member_roles).where(members: { user_id: user.id })
+
+    keyword = params[:keyword].to_s.strip
+    projects = projects.where('name LIKE ?', "%#{keyword}%") if keyword.present?
+
+    projects = projects.where.not(status: 9)  # without archived status
+
+    projects = category_filter(projects)
+    projects = status_filter(projects)
+
+    custom_sort(projects, params[:sort_by], params[:sort_direction])
+  end
+
+  private
+
+  def category_filter(relations)
+    roles = case params[:category]
+            when 'study'  then [4, 5]
+            when 'manage' then 3
+            else [3, 4, 5]
+            end
+    relations.where(member_roles: { role_id: roles })
+  end
+
+  def status_filter(relations)
+    return relations unless self_or_admin?
+
+    case params[:status]
+    when 'publicly' then relations.where(is_public: true)
+    when 'personal' then relations.where(is_public: false)
+    else relations
+    end
+  end
+
+  def self_or_admin?
+    User.current.id == user.id || User.current.admin?
+  end
+end