新增：根据项目id查询数据集接口

app/controllers/api/v1/project_datasets_controller.rb

@@ -0,0 +1,10 @@
+class Api::V1::ProjectDatasetsController < Api::V1::BaseController 
+
+  def index 
+    return render_error("请输入正确的项目id字符串") unless params[:ids].present? 
+    ids = params[:ids].split(",")
+    @project_datasets = ProjectDataset.where(project_id: ids).includes(:license, :project)
+    @project_datasets = kaminari_unlimit_paginate(@project_datasets)
+  end
+
+end

app/views/api/v1/project_datasets/index.json.jbuilder

@@ -0,0 +1,14 @@
+json.total_count @project_datasets.total_count
+json.project_datasets @project_datasets.each do |dataset|
+  json.(dataset, :id, :title, :description, :paper_content)
+  json.project do 
+    json.partial! "api/v1/projects/simple_detail", project: dataset.project
+  end
+  if dataset.license.present? 
+    json.license do 
+      json.(dataset.license, :name, :content)
+    end
+  else
+    json.license nil 
+  end
+end

app/views/api/v1/projects/_simple_detail.json.jbuilder

@@ -1,7 +1,7 @@
 if project.present?
   json.type project.project_type
   json.(project, 
-    :description, :forked_count, :forked_from_project_id, :identifier, 
+    :id, :description, :forked_count, :forked_from_project_id, :identifier, 
     :issues_count, :pull_requests_count, :invite_code, :website, :platform,
     :name, :open_devops, :praises_count, :is_public, :status, :watchers_count,
     :ignore_id, :license_id, :project_category_id, :project_language_id)

config/routes/api.rb

@@ -145,7 +145,7 @@ defaults format: :json do
 
       resources :projects, only: [:index]
       resources :project_topics, only: [:index, :create, :destroy]
-
+      resources :project_datasets, only: [:index]
       
     end
   end