Create pageController

src/controllers/pageController.ts

@@ -0,0 +1,78 @@
+import { PageLink } from '../models';
+import { PageLinkAttributes, PageLinkInstance } from '../models/PageLink';
+
+/**
+ * Creates a page with the given attribues
+ *
+ * @param attributes
+ * @returns The newly created page.
+ */
+export function createPage(attributes: PageLinkAttributes) : Promise<PageLinkInstance> {
+  const newPageLink: PageLinkInstance = await PageLink.create(attribues);
+  return newPageLink;
+}
+
+/**
+ * Gets the page with the given id.
+ *
+ * @param id
+ */
+export function getPage(id: number): Promise<PageLinkInstance | null> {
+  const pageLink: PageLinkInstance | null = await PageLink.findById(id);
+  return pageLink;
+}
+
+/**
+ * Gets all pages.
+ *
+ * @param id
+ */
+export function getAllPages(): Promise<PageLinkInstance[]> {
+  const pageLink: PageLinkInstance[] = await PageLink.all();
+  return pageLink;
+}
+
+/**
+ * Updates a page with the given attributes. Returns the updated page, or undefined if the page is not updated.
+ *
+ * @export
+ * @param {number} id
+ * @param {*} attributes
+ * @returns {(any | undefined)}
+ */
+export function updatePage(id: number, attributes: PageLinkAttributes): Promise<PageLinkInstance | null> {
+  const [numberOfUpdatedPageLinks, updatedPageLinks] = await PageLink.update(
+    attributes,
+    {
+      where: { id },
+      returning: true,
+    }
+  );
+
+  if (numberOfUpdatedPageLinks === 1) {
+    return updatedPageLinks[0];
+  } else if (numberOfUpdatedPageLinks !== 0) {
+    throw new Error(
+      'More than 1 rows updated from single id in `updatePage`! This is bad!'
+    );
+  }
+  return null;
+}
+
+/**
+ * Deletes a page. Returns true if the page was successfully deleted, false otherwise.
+ *
+ * @param id
+ */
+export function deletePage(id: number): Promise<boolean> {
+  const numberOfDeletedPageLinks = await PageLink.destroy({
+    where: { id },
+  });
+
+  if (numberOfDeletedPageLinks === 1) {
+    return true;
+  } else if (numberOfDeletedPageLinks !== 0) {
+    throw new Error('More than 1 rows deleted from single id! This is bad!');
+  }
+  return false;
+}