Update schame

* add all post to db scripte

prisma/schema.prisma

@@ -8,7 +8,7 @@ generator client {
 
 datasource db {
   provider             = "mysql"
-  url                  = env("PLANETSCALE_DB_HOST")
+  url                  = env("PLANETSCALE_PRISMA_DATABASE_URL")
   referentialIntegrity = "prisma"
 }
 
@@ -31,29 +31,30 @@ model Tweets {
 }
 
 model Posts {
-  id         String     @id @default(uuid())
-  Users      Users?     @relation(fields: [usersId], references: [id])
+  id         String    @id @default(uuid())
+  Users      Users?    @relation(fields: [usersId], references: [id])
   usersId    String?
   title      String
-  date       DateTime   @default(now())
-  updateAt   DateTime   @updatedAt
+  date       DateTime  @default(now())
+  updateAt   DateTime  @updatedAt
   tags       Tags[]
-  categories Category[]
+  categories Category? @relation(fields: [categoryId], references: [id])
   url        String
-  index_img  String
-  content    String     @db.LongText
+  index_img  String?
+  content    String    @db.LongText
+  desc       String    @db.VarChar(255)
+  file_name  String    @db.VarChar(255)
+  categoryId String
 }
 
 model Tags {
-  id      String  @id @default(uuid())
-  name    String
-  Posts   Posts[] @relation(fields: [postsId], references: [id])
-  postsId String?
+  id    String  @id @default(uuid())
+  name  String
+  Posts Posts[]
 }
 
 model Category {
-  id      String  @id @default(uuid())
-  name    String
-  Posts   Posts[] @relation(fields: [postsId], references: [id])
-  postsId String?
+  id    String  @id @default(uuid())
+  name  String
+  Posts Posts[]
 }

scripts/build-post.mjs

@@ -0,0 +1,259 @@
+import prismaClient from '@prisma/client';
+const { PrismaClient } = prismaClient;
+
+import { readdir, readFile } from 'fs/promises';
+import { join } from 'path';
+import matter from 'gray-matter';
+import { remark } from 'remark';
+import strip from 'strip-markdown';
+
+const prisma = new PrismaClient();
+
+const postsDirectory = join(process.cwd(), 'public/posts');
+
+/**
+ * Read all post information.
+ * @returns
+ */
+async function getSortedPostsData() {
+  // Get file names under /posts
+  const fileNames = await readdir(postsDirectory);
+  const allPostsData = await Promise.all(
+    fileNames.map(async (fileName) => {
+      // Remove ".md" from file name to get id
+      const file_name = fileName.replace(/\.md$/, '');
+
+      // Read markdown file as string
+      const fullPath = join(postsDirectory, fileName);
+      const fileContents = await readFile(fullPath, 'utf8');
+
+      // Use gray-matter to parse the post metadata section
+      const matterResult = matter(fileContents);
+
+      // Process markdown to plain text
+      const contentText = await remark()
+        .use(strip)
+        .process(matterResult.content);
+
+      // Combine the data with the id
+      return {
+        file_name,
+        // Add post description
+        content: matterResult.content,
+        desc: `${contentText.toString().slice(0, 100)}...`,
+        ...{
+          ...matterResult.data,
+          date: matterResult.data.date.toISOString(),
+        },
+      };
+    })
+  );
+
+  // Sort posts by date
+  return allPostsData.sort(({ date: a }, { date: b }) => {
+    if (a < b) {
+      return 1;
+    } else if (a > b) {
+      return -1;
+    } else {
+      return 0;
+    }
+  });
+}
+
+async function saveTagsToDB(posts) {
+  const allTagsSet = new Set();
+  // Save all tags into a Set.
+  posts.map((post) => {
+    if (post.tags) {
+      Array.isArray(post.tags)
+        ? post.tags.map((tag) => allTagsSet.add(tag))
+        : allTagsSet.add(post.tags);
+    }
+  });
+  const allTags = Array.from(allTagsSet);
+  // Find tag in DB by name
+
+  for (const tag of allTags) {
+    const tagInDB = await prisma.tags.findFirst({
+      select: {
+        name: true,
+      },
+      where: {
+        name: tag,
+      },
+    });
+
+    // If don't exist, insert tag to DB.
+    if (tagInDB == null) {
+      const tagReadToDB = await prisma.tags.create({
+        data: {
+          name: tag,
+        },
+      });
+
+      console.log(
+        `Save tag ${tagReadToDB.name} sucessfuly! id: ${tagReadToDB.id}`
+      );
+    }
+  }
+
+  console.log('Save tag to DB done!');
+}
+
+async function saveCategoryToDB(posts) {
+  const allCategoies = [];
+  posts.map((post) => {
+    if (post.categories) allCategoies.push(post.categories);
+  });
+
+  for (const category of allCategoies) {
+    const categoryInDB = await prisma.category.findFirst({
+      select: {
+        name: true,
+      },
+      where: {
+        name: category,
+      },
+    });
+
+    // If don't exist, insert tag to DB.
+    if (categoryInDB == null) {
+      const categoryReadToDB = await prisma.category.create({
+        data: {
+          name: category,
+        },
+      });
+
+      console.log(
+        `Save category ${categoryReadToDB.name} sucessfuly! id: ${categoryReadToDB.id}`
+      );
+    }
+  }
+
+  console.log('Save category to DB done!');
+}
+
+async function savePostToDB(posts) {
+  const xfy = await prisma.users.findFirst({
+    select: {
+      id: true,
+      username: true,
+    },
+    where: {
+      username: 'xfy',
+    },
+  });
+
+  for (const post of posts) {
+    const postInDB = await prisma.posts.findFirst({
+      select: {
+        file_name: true,
+      },
+      where: {
+        file_name: post.file_name,
+      },
+    });
+
+    // If don't exist, insert tag to DB.
+    if (postInDB == null) {
+      const {
+        title,
+        date,
+        tags,
+        categories,
+        url,
+        index_img,
+        content,
+        desc,
+        file_name,
+      } = post;
+
+      const categoryId = await prisma.category.findFirst({
+        select: {
+          id: true,
+        },
+        where: {
+          name: categories,
+        },
+      });
+
+      const postReadToDB = await prisma.posts.create({
+        data: {
+          Users: {
+            connect: {
+              id: xfy.id,
+            },
+          },
+          title,
+          date,
+          url,
+          index_img: index_img ?? null,
+          content,
+          desc,
+          file_name,
+          tags: tags
+            ? {
+                connect: await findPostTag(tags),
+              }
+            : {},
+          categories: {
+            connect: {
+              id: categoryId.id,
+            },
+          },
+        },
+      });
+
+      console.log(
+        `Save post ${postReadToDB.title} sucessfuly! id: ${postReadToDB.id}`
+      );
+    }
+  }
+
+  console.log('Save post to DB done!');
+}
+
+async function findPostTag(tags) {
+  let tagIds = [];
+  if (Array.isArray(tags)) {
+    for (const tag of tags) {
+      const tagInDB = await prisma.tags.findFirst({
+        select: {
+          id: true,
+        },
+        where: {
+          name: tag,
+        },
+      });
+      tagIds.push({ id: tagInDB.id });
+    }
+    return tagIds;
+  } else {
+    const tagInDB = await prisma.tags.findFirst({
+      select: {
+        id: true,
+      },
+      where: {
+        name: tags,
+      },
+    });
+    return { id: tagInDB.id };
+  }
+}
+
+async function main() {
+  const posts = await getSortedPostsData();
+  await saveTagsToDB(posts);
+  await saveCategoryToDB(posts);
+  await savePostToDB(posts);
+}
+
+main()
+  .then()
+  .catch((e) => {
+    console.error(e);
+  })
+  .finally(async () => {
+    await prisma.$disconnect();
+  });

scripts/test.mjs

@@ -0,0 +1,20 @@
+import prismaClient from '@prisma/client';
+const { PrismaClient } = prismaClient;
+
+const prisma = new PrismaClient();
+
+async function main() {
+  const content = await prisma.posts.findMany({
+    select: {
+      tags: {
+        select: {
+          name: true,
+        },
+      },
+    },
+  });
+
+  console.log(content);
+}
+
+main().then();