feat adds: SELECT queries and creates a table for existing data

lesson_25/db/db_app/src/main/java/com/codedifferently/lesson25/factory/LibraryDbDataLoader.java

@@ -2,6 +2,7 @@
 
 import com.codedifferently.lesson25.models.LibraryDataModel;
 import com.codedifferently.lesson25.repository.LibraryGuestRepository;
+import com.codedifferently.lesson25.repository.LibraryUserRepository;
 import com.codedifferently.lesson25.repository.MediaItemRepository;
 import java.io.IOException;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -13,13 +14,15 @@ public final class LibraryDbDataLoader implements LibraryDataLoader {
 
   @Autowired private MediaItemRepository mediaItemsRepository;
   @Autowired private LibraryGuestRepository libraryGuestRepository;
+  @Autowired private LibraryUserRepository libraryUserRepository;
 
   @Override
   public LibraryDataModel loadData() throws IOException {
     var model = new LibraryDataModel();
 
     model.mediaItems = mediaItemsRepository.findAll();
     model.guests = libraryGuestRepository.findAll();
+    model.users = libraryUserRepository.findAll();
 
     return model;
   }

lesson_25/db/db_app/src/main/java/com/codedifferently/lesson25/models/LibraryDataModel.java

@@ -17,6 +17,7 @@ public class LibraryDataModel {
 
   public List<MediaItemModel> mediaItems;
   public List<LibraryGuestModel> guests;
+  public List<LibraryUserModel> users;
 
   public List<MediaItem> getMediaItems() {
     List<MediaItem> results = new ArrayList<>();

lesson_25/db/db_app/src/main/java/com/codedifferently/lesson25/models/LibraryUserModel.java

@@ -0,0 +1,26 @@
+package com.codedifferently.lesson25.models;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+
+@Entity
+@Table(name = "library_users")
+public class LibraryUserModel {
+
+  @Id 
+  public String id;
+
+  @Column(unique = true, nullable = false)
+  public String email;
+
+  @Column(name = "first_name", nullable = false)
+  public String firstName;
+
+  @Column(name = "last_name", nullable = false)
+  public String lastName;
+
+  @Column(name = "password_hash", nullable = false)
+  public String passwordHash;
+}

lesson_25/db/db_app/src/main/java/com/codedifferently/lesson25/repository/LibraryUserRepository.java

@@ -0,0 +1,13 @@
+package com.codedifferently.lesson25.repository;
+
+import java.util.List;
+
+import org.springframework.data.repository.CrudRepository;
+
+import com.codedifferently.lesson25.models.LibraryUserModel;
+
+public interface LibraryUserRepository extends CrudRepository<LibraryUserModel, String> {
+
+  @Override
+  List<LibraryUserModel> findAll();
+}

lesson_25/db/db_app/src/main/resources/data.sql

@@ -0,0 +1,12 @@
+-- Populating library_users table with sample data
+INSERT OR IGNORE INTO library_users (id, email, first_name, last_name, password_hash) VALUES
+('550e8400-e29b-41d4-a716-446655440001', 'john.doe@example.com', 'John', 'Doe', '$2b$10$rOeWgMLJ8J8j8J8j8J8j8OmQ8J8j8J8j8J8j8J8j8J8j8J8j8J8j8'),
+('550e8400-e29b-41d4-a716-446655440002', 'jane.smith@example.com', 'Jane', 'Smith', '$2b$10$rOeWgMLJ8J8j8J8j8J8j8OmQ8J8j8J8j8J8j8J8j8J8j8J8j8J8j8'),
+('550e8400-e29b-41d4-a716-446655440003', 'mike.johnson@example.com', 'Mike', 'Johnson', '$2b$10$rOeWgMLJ8J8j8J8j8J8j8OmQ8J8j8J8j8J8j8J8j8J8j8J8j8J8j8'),
+('550e8400-e29b-41d4-a716-446655440004', 'sarah.wilson@example.com', 'Sarah', 'Wilson', '$2b$10$rOeWgMLJ8J8j8J8j8J8j8OmQ8J8j8J8j8J8j8J8j8J8j8J8j8J8j8'),
+('550e8400-e29b-41d4-a716-446655440005', 'david.brown@example.com', 'David', 'Brown', '$2b$10$rOeWgMLJ8J8j8J8j8J8j8OmQ8J8j8J8j8J8j8J8j8J8j8J8j8J8j8'),
+('550e8400-e29b-41d4-a716-446655440006', 'emily.davis@example.com', 'Emily', 'Davis', '$2b$10$rOeWgMLJ8J8j8J8j8J8j8OmQ8J8j8J8j8J8j8J8j8J8j8J8j8J8j8'),
+('550e8400-e29b-41d4-a716-446655440007', 'robert.miller@example.com', 'Robert', 'Miller', '$2b$10$rOeWgMLJ8J8j8J8j8J8j8OmQ8J8j8J8j8J8j8J8j8J8j8J8j8J8j8'),
+('550e8400-e29b-41d4-a716-446655440008', 'lisa.garcia@example.com', 'Lisa', 'Garcia', '$2b$10$rOeWgMLJ8J8j8J8j8J8j8OmQ8J8j8J8j8J8j8J8j8J8j8J8j8J8j8'),
+('550e8400-e29b-41d4-a716-446655440009', 'james.martinez@example.com', 'James', 'Martinez', '$2b$10$rOeWgMLJ8J8j8J8j8J8j8OmQ8J8j8J8j8J8j8J8j8J8j8J8j8J8j8'),
+('550e8400-e29b-41d4-a716-446655440010', 'amanda.anderson@example.com', 'Amanda', 'Anderson', '$2b$10$rOeWgMLJ8J8j8J8j8J8j8OmQ8J8j8J8j8J8j8J8j8J8j8J8j8J8j8');

lesson_25/db/db_app/src/main/resources/queries/jarededge.sql

@@ -0,0 +1,24 @@
+-- SQL Queries for Library Database
+SELECT type, COUNT(*) as count 
+FROM media_items 
+GROUP BY type;
+
+SELECT SUM(pages) 
+FROM media_items 
+JOIN checked_out_items ON media_items.id = checked_out_items.item_id;
+
+SELECT guests.name, guests.email, media_items.title 
+FROM guests 
+LEFT JOIN checked_out_items ON guests.email = checked_out_items.email
+LEFT JOIN media_items ON checked_out_items.item_id = media_items.id;
+
+-- Table Creation
+CREATE TABLE library_users (
+    id TEXT NOT NULL,
+    email TEXT NOT NULL,
+    first_name TEXT NOT NULL,
+    last_name TEXT NOT NULL,
+    password_hash TEXT NOT NULL,
+    PRIMARY KEY (id),
+    UNIQUE (email)
+);