crud

问题 I want create a simple button to search, via methods of CrudRepository, and show records on the website. I'm a beginner, so it may seem too trivial to you, but I'm asking for advice nevertheless :) StudentRepository.java public interface StudentRepository extends CrudRepository<Student, Integer> { Iterable<Student> findBySurname(String surname); } StudentService.java public interface StudentService { Iterable<Student> listStudentsBySurname(String surname); } StudentServiceImpl.java @Service

问题 I'm researching software components to use in a future development of a business logic web application. It's gonna be written in Python and we are targeting SQLAlchemy as ORM. The app will be used by other software apps via a REST-like interface over http, possibly using web.py for that part. For debugging, maintenance, etc we need to directly access the MySQL database but phpmyadmin is too low-level for standard tasks given the rich structure of the db modeled by SQLAlchemy, so I'm looking

问题 While searching for the best practivies of performing CRUD operation via EF I noticed that it is highly recommended to use Attach() or Find() methods before updating an entity. It works well and according to EF documentation these methods fetch the entity to context that is quite clear for me. But the followind code confused me pretty much public void Update(object entity) { Record record = new Record() { id = 1, value = 5 }; using (SomeContext ctx = new SomeContext()) { ctx.Entry(record)

问题 this is just a question to discuss - what is the best way to make a view/edit control in WPF? E.g. we have an entity object Person, that has some props (name, surname, address, phone etc.). One presentation of the control would be a read-only view. And the other would have the edit view for this same person. Example: <UserControl x:Name="MyPersonEditor"> <Grid> <Grid x:Name="ViewGrid" Visibility="Visible"> <TextBlock Text="Name:"/> <TextBlock Text="{Binding Person.Name}"/> <Button Content=

问题 I would like to custom my queries with CrudRepository : This is my code: @Repository public interface CustomerRepository extends CrudRepository<Customer, Long> { @Query("UPDATE customer c SET c.firstName = :firstName WHERE c.id = :id") Integer setNewFirstNameForId(@Param("firstName") String firstName, @Param("id") long id); } @Entity public class Customer { @Id @GeneratedValue(strategy=GenerationType.AUTO) private long id; private String firstName; private String lastName; protected Customer(

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . I am looking for a simple CRUD (or DAL) Generator for C#. I don't want anything heavyweight since I only have a couple of tables in a

问题 I'm using MongoDB 3.2 and MongoDB Java Driver 3.2. I have an array of a couple of hundreds of updated documents which should be now saved/stored in MongoDB. In order to do that, I iterate over the array and call for each document in this array the updateOne() method. Now, I want to re-implement this logic with a bulk update. I tried to find an example of bulk update in MongoDB 3.2 with MongoDB Java Driver 3.2. I tried this code: MongoClient mongo = new MongoClient("localhost", 27017); DB db =

问题 How is the best way to load Category model, for ProductController in new, edit update and create actions Product has categories collection class Product < ActiveRecord::Base has_many :categories end Always for new, edit, create and update actions, I need to load the categories collection to populate a check_box_tag list The "baby steps" for this situation is: class Admin::ProductsController < Admin::AdminApplicationController def new @product = Product.new @categories = Category.all end def

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . I'm looking for a simple MVC framework for PHP and would like something that handles basic user auth (for the admin) and generates it's own CRUD pages out of the box. Edit: I'd really like something that creates these admin pages on the fly or "automatically" instead of the whole "baking" concept or having to

问题 I want to set up the CRUD for users, available just for administrators of my web application. So in routes.rb: namespace :admin do resources :user end which means this: admin_user_index GET /admin/user(.:format) admin/user#index POST /admin/user(.:format) admin/user#create new_admin_user GET /admin/user/new(.:format) admin/user#new edit_admin_user GET /admin/user/:id/edit(.:format) admin/user#edit admin_user GET /admin/user/:id(.:format) admin/user#show PUT /admin/user/:id(.:format) admin