Add query booksByAuthor

nikonst · nikonst · commit 0bdaff364f27 · 2024-09-17T10:24:12.000+03:00
diff --git a/graphQLApollo/index.js b/graphQLApollo/index.js
@@ -34,14 +34,25 @@ const resolvers = {
     booksAndAuthors() {
       let booksAndAuthorsArray = []
       for (let i = 0; i < db.books.length; i++) {
-        for(let j = 0; j < db.authors.length; j++) {
-          if(db.books[i].author === db.authors[j].id) {
-            booksAndAuthorsArray.push({title: db.books[i].title, authorName: db.authors[j].name })
+        for (let j = 0; j < db.authors.length; j++) {
+          if (db.books[i].author === db.authors[j].id) {
+            booksAndAuthorsArray.push({ title: db.books[i].title, authorName: db.authors[j].name })
           }
         }
       }
       return booksAndAuthorsArray
     },
+    booksByAuthor(parent, args, context) {
+      const authorsID = db.authors.find(a => {
+        if (a.name === args.name) {
+          return a
+        }
+      })
+      const booksByAuthor = db.books.filter(b => {
+        return b.author === authorsID.id
+      })
+      return booksByAuthor
+    },
     book(parent, args, context) {
       //console.log(parent, "\n", context)
       let result = db.books.find((b) => {
diff --git a/graphQLApollo/schema/schema.js b/graphQLApollo/schema/schema.js
@@ -25,12 +25,13 @@ export const typeDefs = `#graphql
     title: String!
     authorName: String!
   }
-    
+  
   type Query {
     books: [Book]
     book(id: Int!): Book
     authors: [Author]
     addressAuthor(name: String!): Address
     booksAndAuthors: [BookAndAuthor]
+    booksByAuthor(name: String!): [Book]
   }
 `

Original file line number	Diff line number	Diff line change
@@ -25,12 +25,13 @@ export const typeDefs = `#graphql
`25`	`25`	`title: String!`
`26`	`26`	`authorName: String!`
`27`	`27`	`}`
`28`		`-`
	`28`	`+`
`29`	`29`	`type Query {`
`30`	`30`	`books: [Book]`
`31`	`31`	`book(id: Int!): Book`
`32`	`32`	`authors: [Author]`
`33`	`33`	`addressAuthor(name: String!): Address`
`34`	`34`	`booksAndAuthors: [BookAndAuthor]`
	`35`	`+ booksByAuthor(name: String!): [Book]`
`35`	`36`	`}`
`36`	`37`	`