From 9263f3262cdbe9f37cbc116745c9e9c547a7f57b Mon Sep 17 00:00:00 2001
From: k-kbk <kkbk0077@gmail.com>
Date: Mon, 20 May 2024 14:27:41 +0900
Subject: [PATCH] =?UTF-8?q?feat=20|=20DB=20=EC=84=A4=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../com/example/jaringobi/MainActivity.kt     |  4 ++
 .../java/com/example/jaringobi/db/Contract.kt | 46 +++++++++++++++++++
 .../java/com/example/jaringobi/db/DBHelper.kt | 34 ++++++++++++++
 3 files changed, 84 insertions(+)
 create mode 100644 app/src/main/java/com/example/jaringobi/db/Contract.kt
 create mode 100644 app/src/main/java/com/example/jaringobi/db/DBHelper.kt

diff --git a/app/src/main/java/com/example/jaringobi/MainActivity.kt b/app/src/main/java/com/example/jaringobi/MainActivity.kt
index a867f61..11cbd7f 100644
--- a/app/src/main/java/com/example/jaringobi/MainActivity.kt
+++ b/app/src/main/java/com/example/jaringobi/MainActivity.kt
@@ -3,14 +3,18 @@ package com.example.jaringobi
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
 import com.example.jaringobi.databinding.ActivityMainBinding
+import com.example.jaringobi.db.DBHelper
 
 class MainActivity : AppCompatActivity() {
     private lateinit var binding: ActivityMainBinding
+    private lateinit var dbHelper: DBHelper
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
         binding = ActivityMainBinding.inflate(layoutInflater)
         setContentView(binding.root)
+
+        dbHelper = DBHelper(this)
     }
 }
diff --git a/app/src/main/java/com/example/jaringobi/db/Contract.kt b/app/src/main/java/com/example/jaringobi/db/Contract.kt
new file mode 100644
index 0000000..e43c7ff
--- /dev/null
+++ b/app/src/main/java/com/example/jaringobi/db/Contract.kt
@@ -0,0 +1,46 @@
+package com.example.jaringobi.db
+
+import android.provider.BaseColumns
+
+object Contract {
+    const val DATABASE_NAME = "jaringobi.db"
+    const val DATABASE_VERSION = 1
+
+    object GoalEntry : BaseColumns {
+        private const val TABLE_NAME = "goals"
+        private const val COLUMN_YEAR = "year"
+        private const val COLUMN_MONTH = "month"
+        private const val COLUMN_AMOUNT = "amount"
+        private const val COLUMN_CURRENT_SPENT = "current_spent"
+
+        const val CREATE_TABLE =
+            "CREATE TABLE $TABLE_NAME" +
+                "(" +
+                "${BaseColumns._ID} INTEGER PRIMARY KEY AUTOINCREMENT," +
+                "$COLUMN_YEAR INTEGER NOT NULL, " +
+                "$COLUMN_MONTH INTEGER NOT NULL, " +
+                "$COLUMN_AMOUNT INTEGER NOT NULL, " +
+                "$COLUMN_CURRENT_SPENT INTEGER NOT NULL DEFAULT 0" +
+                ")"
+
+        const val DROP_TABLE = "DROP TABLE IF EXISTS $TABLE_NAME"
+    }
+
+    object ExpenseEntry : BaseColumns {
+        private const val TABLE_NAME = "expenses"
+        private const val COLUMN_PLACE = "place"
+        private const val COLUMN_AMOUNT = "amount"
+        private const val COLUMN_DATE = "date"
+
+        const val CREATE_TABLE =
+            "CREATE TABLE $TABLE_NAME" +
+                "(" +
+                "${BaseColumns._ID} INTEGER PRIMARY KEY AUTOINCREMENT," +
+                "$COLUMN_PLACE TEXT NOT NULL," +
+                "$COLUMN_AMOUNT INTEGER NOT NULL," +
+                "$COLUMN_DATE TEXT NOT NULL" +
+                ")"
+
+        const val DROP_TABLE = "DROP TABLE IF EXISTS $TABLE_NAME"
+    }
+}
diff --git a/app/src/main/java/com/example/jaringobi/db/DBHelper.kt b/app/src/main/java/com/example/jaringobi/db/DBHelper.kt
new file mode 100644
index 0000000..eec008e
--- /dev/null
+++ b/app/src/main/java/com/example/jaringobi/db/DBHelper.kt
@@ -0,0 +1,34 @@
+package com.example.jaringobi.db
+
+import android.content.Context
+import android.database.sqlite.SQLiteDatabase
+import android.database.sqlite.SQLiteOpenHelper
+import com.example.jaringobi.db.Contract.ExpenseEntry
+import com.example.jaringobi.db.Contract.GoalEntry
+
+class DBHelper(context: Context) : SQLiteOpenHelper(
+    context,
+    Contract.DATABASE_NAME,
+    null,
+    Contract.DATABASE_VERSION,
+) {
+    override fun onCreate(db: SQLiteDatabase?) {
+        Thread {
+            db?.execSQL(ExpenseEntry.CREATE_TABLE)
+            db?.execSQL(GoalEntry.CREATE_TABLE)
+        }.start()
+    }
+
+    override fun onUpgrade(
+        db: SQLiteDatabase?,
+        oldVersion: Int,
+        newVersion: Int,
+    ) {
+        Thread {
+            db?.execSQL(ExpenseEntry.DROP_TABLE)
+            db?.execSQL(GoalEntry.DROP_TABLE)
+        }.start()
+        
+        onCreate(db)
+    }
+}