Iniciados Deletes

Dia 59 até 62 - Node - Proj Biblioteca/controllers/authorController.js

@@ -1,62 +1,192 @@
-var Author = require('../models/author');
-var async = require('async');
-var Book = require('../models/book');
+const Author = require("../models/author");
+const async = require("async");
+const Book = require("../models/book");
+const { body, validationResult } = require("express-validator");
 
 // Display list of all Authors.
-exports.author_list = function(req, res, next) {
-    Author.find()
-      .sort([['family_name', 'ascending']])
-      .exec(function (err, list_authors) {
-        if (err) { return next(err); }
-        //Successful, so render
-        res.render('author_list', { title: 'Author List', author_list: list_authors });
+exports.author_list = function (req, res, next) {
+  Author.find()
+    .sort([["family_name", "ascending"]])
+    .exec(function (err, list_authors) {
+      if (err) {
+        return next(err);
+      }
+      //Successful, so render
+      res.render("author_list", {
+        title: "Author List",
+        author_list: list_authors,
       });
-  };
+    });
+};
 
 // Display detail page for a specific Author.
-exports.author_detail = function(req, res, next) {
-    async.parallel({
-        author: function(callback) {
-            Author.findById(req.params.id)
-              .exec(callback)
-        },
-        authors_books: function(callback) {
-          Book.find({ 'author': req.params.id },'title summary')
-          .exec(callback)
-        },
-    }, function(err, results) {
-        if (err) { return next(err); } // Error in API usage.
-        if (results.author==null) { // No results.
-            var err = new Error('Author not found');
-            err.status = 404;
-            return next(err);
-        }
-        // Successful, so render.
-        res.render('author_detail', { title: 'Author Detail', author: results.author, author_books: results.authors_books } );
-    });
+exports.author_detail = function (req, res, next) {
+  async.parallel(
+    {
+      author: function (callback) {
+        Author.findById(req.params.id).exec(callback);
+      },
+      authors_books: function (callback) {
+        Book.find({ author: req.params.id }, "title summary").exec(callback);
+      },
+    },
+    function (err, results) {
+      if (err) {
+        return next(err);
+      } // Error in API usage.
+      if (results.author == null) {
+        // No results.
+        var err = new Error("Author not found");
+        err.status = 404;
+        return next(err);
+      }
+      // Successful, so render.
+      res.render("author_detail", {
+        title: "Author Detail",
+        author: results.author,
+        author_books: results.authors_books,
+      });
+    }
+  );
 };
 
 // Display Author create form on GET.
-exports.author_create_get = function(req, res) {
-    res.send('NOT IMPLEMENTED: Author create GET');
+exports.author_create_get = function (req, res, next) {
+  res.render("author_form", { title: "Create Author" });
 };
+
 // Handle Author create on POST.
-exports.author_create_post = function(req, res) {
-    res.send('NOT IMPLEMENTED: Author create POST');
-};
+exports.author_create_post = [
+  // Validate and sanitize fields.
+  body("first_name")
+    .trim()
+    .isLength({ min: 1 })
+    .escape()
+    .withMessage("First name must be specified.")
+    .isAlphanumeric()
+    .withMessage("First name has non-alphanumeric characters."),
+  body("family_name")
+    .trim()
+    .isLength({ min: 1 })
+    .escape()
+    .withMessage("Family name must be specified.")
+    .isAlphanumeric()
+    .withMessage("Family name has non-alphanumeric characters."),
+  body("date_of_birth", "Invalid date of birth")
+    .optional({ checkFalsy: true })
+    .isISO8601()
+    .toDate(),
+  body("date_of_death", "Invalid date of death")
+    .optional({ checkFalsy: true })
+    .isISO8601()
+    .toDate(),
+
+  // Process request after validation and sanitization.
+  (req, res, next) => {
+    // Extract the validation errors from a request.
+    const errors = validationResult(req);
+
+    if (!errors.isEmpty()) {
+      // There are errors. Render form again with sanitized values/errors messages.
+      res.render("author_form", {
+        title: "Create Author",
+        author: req.body,
+        errors: errors.array(),
+      });
+      return;
+    } else {
+      // Data from form is valid.
+
+      // Create an Author object with escaped and trimmed data.
+      var author = new Author({
+        first_name: req.body.first_name,
+        family_name: req.body.family_name,
+        date_of_birth: req.body.date_of_birth,
+        date_of_death: req.body.date_of_death,
+      });
+      author.save(function (err) {
+        if (err) {
+          return next(err);
+        }
+        // Successful - redirect to new author record.
+        res.redirect(author.url);
+      });
+    }
+  },
+];
+
 // Display Author delete form on GET.
-exports.author_delete_get = function(req, res) {
-    res.send('NOT IMPLEMENTED: Author delete GET');
+exports.author_delete_get = function (req, res, next) {
+  async.parallel(
+    {
+      author: function (callback) {
+        Author.findById(req.params.id).exec(callback);
+      },
+      authors_books: function (callback) {
+        Book.find({ author: req.params.id }).exec(callback);
+      },
+    },
+    function (err, results) {
+      if (err) {
+        return next(err);
+      }
+      if (results.author == null) {
+        // No results.
+        res.redirect("/catalog/authors");
+      }
+      // Successful, so render.
+      res.render("author_delete", {
+        title: "Delete Author",
+        author: results.author,
+        author_books: results.authors_books,
+      });
+    }
+  );
 };
+
 // Handle Author delete on POST.
-exports.author_delete_post = function(req, res) {
-    res.send('NOT IMPLEMENTED: Author delete POST');
+exports.author_delete_post = function (req, res, next) {
+  async.parallel(
+    {
+      author: function (callback) {
+        Author.findById(req.body.authorid).exec(callback);
+      },
+      authors_books: function (callback) {
+        Book.find({ author: req.body.authorid }).exec(callback);
+      },
+    },
+    function (err, results) {
+      if (err) {
+        return next(err);
+      }
+      // Success
+      if (results.authors_books.length > 0) {
+        // Author has books. Render in same way as for GET route.
+        res.render("author_delete", {
+          title: "Delete Author",
+          author: results.author,
+          author_books: results.authors_books,
+        });
+        return;
+      } else {
+        // Author has no books. Delete object and redirect to the list of authors.
+        Author.findByIdAndRemove(req.body.authorid, function deleteAuthor(err) {
+          if (err) {
+            return next(err);
+          }
+          // Success - go to author list
+          res.redirect("/catalog/authors");
+        });
+      }
+    }
+  );
 };
+
 // Display Author update form on GET.
-exports.author_update_get = function(req, res) {
-    res.send('NOT IMPLEMENTED: Author update GET');
+exports.author_update_get = function (req, res) {
+  res.send("NOT IMPLEMENTED: Author update GET");
 };
 // Handle Author update on POST.
-exports.author_update_post = function(req, res) {
-    res.send('NOT IMPLEMENTED: Author update POST');
+exports.author_update_post = function (req, res) {
+  res.send("NOT IMPLEMENTED: Author update POST");
 };