Main

.env

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+PORT=9000;

.gitignore

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+node_modules

api/server.js

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+const express = require("express");
+const server = express();
+const tarifRouter = require("./tarifler/tarif-router");
+
+server.use(express.json());
+server.use("/api/tarifler", tarifRouter);
+
+module.exports = server;

api/tarifler/tarif-middleware.js

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+const tarifModel = require("../tarifler/tarif-model");
+
+
+const checkTarifId = async function (req, res, next) {
+    try {
+        const isExist = await tarifModel.idyeGoreTarifGetir(req.params.id);
+        if (isExist.length == 0) {
+            res.status(404).message({ message: `${req.params.id} id'li tarif bulunamadı` });
+
+        } else {
+            req.tarif = isExist;
+            next();
+        }
+
+    } catch (error) {
+        next(error);
+
+    }
+}
+module.exports = {
+    checkTarifId
+}

api/tarifler/tarif-model.js

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+const db = require("../../data/db.config");
+
+
+const icindekileriGetir = async function (adim_id) {
+    const icindekiler = await db("icindekiler_adimlar as ia")
+        .leftJoin("icindekiler as i", "ia.icindekiler_id", "i.icindekiler_id")
+        .select("i.*")
+    return icindekiler;
+}
+const idyeGoreTarifGetir = async function (tarif_id) {
+    const tarifler = await db("tarifler as t")
+        .leftJoin("adimlar as a", "t.tarif_id", "a.tarif_id")
+        .leftJoin("icindekiler_adimlar as ia", "ia.adim_id", "a.adim_id")
+        .leftJoin("icindekiler as i", "ia.icindekiler_id", "i.icindekiler_id")
+        .select(
+            "t.*", "a.adim_id", "a.adim_sirasi", "a.adim_talimati",
+            "i.icindekiler_id", "i.icindekiler_adi", "i.miktar"
+        )
+        .where("t.tarif_id", tarif_id);
+    if (tarifler.length === 0) {
+        return [];
+    }
+    const tarifModel = {
+        tarif_id: tarif_id,
+        tarif_adi: tarifler[0],
+        kayit_tarihi: tarifler[0].kayit_tarihi,
+        adimlar: []
+    }
+    tarifler.forEach(async (tarif) => {
+
+
+    });
+    for (let i = 0; i < tarifler.length; i++) {
+        const tarif = tarifler[i];
+    }
+    return tarifModel;
+}
+module.exports = {
+    idyeGoreTarifGetir
+}

api/tarifler/tarif-router.js

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+const express = require("express");
+const router = express.Router();
+
+const mw = require("../tarifler/tarif-middleware");
+
+router.get("/:id", mw.checkTarifId, (req, res, next) => {
+    try {
+        res.json(req.tarif);
+
+    } catch (error) {
+        next(error);
+    }
+});
+module.exports = router;

data/db.config.js

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+const knex = require("knex");
+const configfile = require("../knexfile");
+
+
+const environmemnt = "development";
+module.exports = knex(configFile[environment]);

data/migrations/20230304212152_tarifler.js

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+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = function (knex) {
+    const all = knex.schema.createTable("tarifler", t => {
+        t.increments("tarif_id"),
+            t.string("tarif_adi").notNullable().unique()
+        t.timestamp("kayit_tarihi").defaultTo(knex.fn.now())
+
+    })
+        .createTable("adimlar", t => {
+            t.increments("adim_id")
+            t.integer("adim_sirasi").notNullable().unsigned()
+            t.string("adim_talimati").notNullable()
+            t.integer("tarif_id").notNullable().unsigned()
+                .references("tarif_id")
+                .inTable("tarifler")
+        })
+        .createTable("icindekiler", t => {
+            t.increments("icindekiler_id")
+            t.string("icindekiler_adi").notNullable()
+            t.float("miktar").notNullable()
+        })
+        .createTable("icindekiler_adimlar", t => {
+            t.increments("icindekiler_adimlar_id")
+            t.integer("adim_id")
+                .references("adim_id")
+                .inTable("adimlar")
+            t.integer("icindekiler_id")
+                .references("icindekiler_id")
+                .inTable("icindekiler")
+        });
+    return all;
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = function (knex) {
+    return knex.schema
+        .dropTableIfExists("icindekiler_adimlar")
+        .dropTableIfExists("adimlar")
+        .dropTableIfExists("icindekiler")
+        .dropTableIfExists("tarifler")
+};

index.js

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+const server = require("./api/server");
+
+const port = 9001;
+
+server.listen(port, () => {
+    console.log("listening on", port);
+});

knexfile.js

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+// Update with your config settings.
+
+/**
+ * @type { Object.<string, import("knex").Knex.Config> }
+ */
+module.exports = {
+  development: {
+    client: "sqlite3",
+    connection: {
+      filename: "./dev.sqlite3"
+    },
+    migrations: {
+      directory: "./data/migrations"
+    },
+    seeds: {
+      directory: "./data/seeds "
+    },
+    useNullAsDefault: true,
+    pool: {
+      afterCreate: (conn, done) => {
+        conn.run("PRAGMA foreign_keys=ON", done);
+      }
+    }
+  }
+};