Реализован рассчет зарплаты в рамках какого-либо срока

Author: SergeyGT

app/src/main/java/com/example/farmhelper/DBFarm.kt

@@ -6,11 +6,12 @@ import android.content.Context
 import android.database.Cursor
 import android.database.sqlite.SQLiteDatabase
 import android.database.sqlite.SQLiteOpenHelper
+import android.util.Log
 import androidx.core.content.contentValuesOf
 import androidx.lifecycle.ViewModelProvider
 
 class DBFarm(val context: Context, val factory: SQLiteDatabase.CursorFactory?) :
-    SQLiteOpenHelper(context, "user", factory, 5){
+    SQLiteOpenHelper(context, "user", factory, 8){
     override fun onCreate(db: SQLiteDatabase?) {
         val query = "CREATE TABLE users (idUsers INTEGER PRIMARY KEY AUTOINCREMENT, login TEXT, pass TEXT)"
         db!!.execSQL(query)
@@ -96,6 +97,7 @@ class DBFarm(val context: Context, val factory: SQLiteDatabase.CursorFactory?) :
         valuesSalary.put("hourly_rate", salary.hoursRate)
         valuesSalary.put("hectares", salary.hectares)
         valuesSalary.put("hectare_rate", salary.hectaresRate)
+
         val db = this.writableDatabase
         db.insert("salary", null, valuesSalary)
         db.close()
@@ -119,4 +121,32 @@ class DBFarm(val context: Context, val factory: SQLiteDatabase.CursorFactory?) :
 
     }
 
+    fun calculateSalary(employeeId: Int, startDate: String, endDate: String): Double {
+        val db = this.readableDatabase
+        Log.d("DBFarm", "Calculating salary for employeeId: $employeeId, from: $startDate to: $endDate")
+        val query = """
+            SELECT SUM(hours * hourly_rate + hectares * hectare_rate) 
+            FROM salary 
+            WHERE employee_id = ? 
+            AND work_date BETWEEN ? AND ?
+        """
+        // Логирование запроса и параметров
+        Log.d("DBFarm", "SQL Query: $query")
+        Log.d("DBFarm", "Parameters: ${arrayOf(employeeId.toString(), startDate, endDate).joinToString(", ")}")
+        val cursor: Cursor = db.rawQuery(query, arrayOf(employeeId.toString(), startDate, endDate))
+        val totalSalary = if (cursor.moveToFirst()) {
+            val result = cursor.getDouble(0)
+            Log.d("DBFarm", "Total Salary: $result")
+            result
+        } else {
+            Log.d("DBFarm", "No data found.")
+            0.0
+        }
+        cursor.close()
+        db.close()
+        return totalSalary
+    }
+
+
+
 }

app/src/main/java/com/example/farmhelper/zpCash.kt

@@ -1,16 +1,47 @@
 package com.example.farmhelper
 
 import android.os.Bundle
+import android.widget.Button
+import android.widget.EditText
+import android.widget.TextView
 import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
+import java.text.SimpleDateFormat
+import java.util.Locale
 
 class zpCash : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         enableEdgeToEdge()
         setContentView(R.layout.activity_zp_cash)
+
+        fun convertDateFormat(date: String, fromFormat: String = "dd.MM.yyyy", toFormat: String = "yyyy-MM-dd"): String {
+            val inputDateFormat = SimpleDateFormat(fromFormat, Locale.getDefault())
+            val outputDateFormat = SimpleDateFormat(toFormat, Locale.getDefault())
+            val parsedDate = inputDateFormat.parse(date)
+            return outputDateFormat.format(parsedDate)
+        }
+
+        val employeeIdZp = intent.getIntExtra("EMPLOYEE_ID", -1)
+        val startDate: EditText = findViewById(R.id.startDate)
+        val endDate: EditText = findViewById(R.id.endDate)
+        val zp: TextView = findViewById(R.id.zpSum)
+        val btnCheck: Button = findViewById(R.id.btnCheckZp)
+
+        btnCheck.setOnClickListener {
+            val start = startDate.text.toString().trim()
+            val end = endDate.text.toString().trim()
+            val formatStartDate = convertDateFormat(start,"dd.MM.yyyy", "yyyy-MM-dd")
+            val formatEndDate = convertDateFormat(end,"dd.MM.yyyy", "yyyy-MM-dd")
+
+
+            val db = DBFarm(this, null)
+            val totalSum = db.calculateSalary(employeeIdZp, formatStartDate, formatEndDate)
+            zp.setText(totalSum.toString())
+        }
+
         ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
             val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)