add contribution_perc function

app/controllers/users_controller.rb

@@ -81,6 +81,116 @@ class UsersController < ApplicationController
     @watchers = paginate(watchers)
   end
 
+  def contribution_perc
+    project_id = params[:project_id]
+    @project = Project.find(project_id)
+    user_id = params[:id]
+    @user = User.find(user_id)
+    # 获取所有行为对应的项目内记录总数和个人记录数
+    features = {
+      "requirement" => {},
+      "development" => {},
+      "review" => {}
+    }
+
+    def cal_perc(count_user, count_all)
+      (count_user * 1.0 / (count_all + 0.000000001)).round(5)
+    end
+
+    # 1. issue创建
+    issues = Issue.where(project_id: project_id, issue_classify: 'issue')
+    issue_all = issues.count
+    issue_user = issues.where(author_id: user_id).count
+    features["requirement"] = features["requirement"].merge({"issue" => {"all" => issue_all, "perc" => cal_perc(issue_user, issue_all)}})
+    # 2. 里程碑创建
+    milestones = Version.where(project_id: project_id)
+    milestone_all = milestones.count
+    milestone_user = milestones.where(user_id: user_id).count
+    features["requirement"] = features["requirement"].merge({"milestone" => {"all" => milestone_all, "perc" => milestone_user * 1.0 / milestone_all}})
+    # 3. issue评论
+    issue_comments = Journal.joins("INNER JOIN issues on journals.journalized_id=issues.id").where("issues.project_id=#{project_id} and journalized_type='Issue' and issues.issue_classify='issue'")
+    issue_comment_all = issue_comments.count
+    issue_comment_user = issue_comments.where("journals.user_id=#{user_id}").count
+    features["requirement"] = features["requirement"].merge({"issue_comment" => {"all" => issue_comment_all, "perc" => cal_perc(issue_comment_user, issue_comment_all)}})
+    # 4. 合并请求
+    prs = PullRequest.where(project_id: project_id)
+    pr_all = prs.count
+    pr_user = prs.where(user_id: user_id).count
+    features["development"] = features["development"].merge({"pr" => {"all" => pr_all, "perc" => pr_user * 1.0 / pr_all}})
+    # 5. pr评论
+    pr_comments = Journal.joins("INNER JOIN issues on journals.journalized_id=issues.id").where("issues.project_id=#{project_id} and journalized_type='Issue' and issues.issue_classify='pull_request'")
+    pr_comment_all = pr_comments.count
+    pr_comment_user = pr_comments.where("journals.user_id=#{user_id}").count
+    features["review"] = features["review"].merge({"pr_comment" => {"all" => pr_comment_all, "perc" => cal_perc(pr_comment_user, pr_comment_all)}})
+    # 6. 代码行评论
+    line_comments = Journal.joins("INNER JOIN pull_requests on journals.journalized_id=pull_requests.id").where("pull_requests.project_id=#{project_id} and journalized_type='PullRequest'")
+    line_comment_all = line_comments.count
+    line_comment_user = line_comments.where("journals.user_id=#{user_id}").count
+    features["review"] = features["review"].merge({"line_comment" => {"all" => line_comment_all, "perc" => cal_perc(line_comment_user, line_comment_all)}})
+    # 7. 代码行、commit贡献统计
+    code_contributions = Api::V1::Projects::CodeStats::ListService.call(@project, {ref: nil})
+    commit_all = code_contributions["commit_count"]
+    addition_all = code_contributions["additions"]
+    deletion_all = code_contributions["deletions"]
+
+    commit_user = 0
+    addition_user = 0
+    deletion_user = 0
+    code_contributions["authors"].each do |author|
+      if author["name"] == @user.login
+        commit_user = author["commits"]
+        addition_user = author["additions"]
+        deletion_user = author["deletions"]
+      end
+    end
+
+    features["development"] = features["development"].merge({"commit" => {"all" => commit_all, "perc" => cal_perc(commit_user, commit_all)}})
+    features["development"] = features["development"].merge({"addition" => {"all" => addition_all, "perc" => cal_perc(addition_user, addition_all)}})
+    features["development"] = features["development"].merge({"deletion" => {"all" => deletion_all, "perc" => cal_perc(deletion_user, deletion_all)}})
+
+    def cal_weight(features)
+      weights = {} # 计算每一项的权重
+      categories = []
+      features.each do |key, _|
+        categories << key
+        weights[key] = Hash.new
+      end
+      count_all = 0
+      counts = {}
+      categories.each do |category|
+        count_1 = 0
+        features[category].each do |_, value|
+          count_1 += value["all"]
+        end
+        count_all += count_1
+        counts[category] = count_1
+        features[category].each do |key, value|
+          weight = value["all"] * 1.0 / count_1
+          weights[category] = weights[category].merge({key => weight})
+        end
+      end
+      categories.each do |category|
+        weight = counts[category] * 1.0 / count_all
+        weights[category] = weights[category].merge({"category_weight" => weight})
+      end
+      return weights
+    end
+
+    weights_categories = cal_weight(features)
+    scores = {
+      "final" => 0.0
+    }
+    features.each do |category, value_1|
+      category_score = 0.0
+      value_1.each do |action, value_2|
+        category_score += weights_categories[category][action] * value_2["perc"]
+      end
+      scores["final"] += weights_categories[category]["category_weight"] * category_score.round(4)
+      scores = scores.merge({category => category_score.round(4)})
+    end
+    render json: { scores: scores }
+  end
+
   def hovercard
   end