# Monthly Salary Scholarship Exemption Implementation

## Overview
This document describes the updated implementation of scholarship-based fee exemption functionality. As per the updated requirements, only "মাসিক বেতন" (monthly salary) fees are exempted for scholarship students, while other fees still need to be paid.

## Changes Made

### 1. Fee Management Page (`fees/manage.php`)
- **Fee Assignment Logic**: Updated to only exclude scholarship students when assigning "মাসিক বেতন" (monthly salary) fees
- **Other Fees**: All other fee types are assigned to all students regardless of scholarship status
- **User Feedback**: Enhanced messages to clearly indicate when scholarship students are excluded
- **Recent Fees Display**: Updated to show scholarship exemption status for monthly salary fees

### 2. Fee Collection Page (`fees/student_fees.php`)
- **Fee Filtering**: Modified to only exclude "মাসিক বেতন" fees for scholarship students
- **Other Fees Collection**: All other fees can still be collected from scholarship students
- **Visual Indicators**: Added badges to clearly show which fees are exempted
- **User Interface**: Enhanced to display appropriate messages for both exempted and payable fees

### 3. Database Logic
- **Selective Exemption**: Only "মাসিক বেতন" fees are exempted for scholarship students
- **Other Fees**: All other fee types must still be paid by scholarship students
- **Query Updates**: Modified queries to check fee types along with scholarship status

## Functionality

### Fee Assignment
When assigning fees to a class:
1. For "মাসিক বেতন" fees:
   - Only students with `scholarship = 'no'` receive the fee
   - Students with `scholarship = 'yes'` are automatically excluded
   - Success messages indicate scholarship students are excluded
2. For all other fee types:
   - All students receive the fee regardless of scholarship status
   - No exclusions based on scholarship status

### Fee Collection
When collecting fees from a student:
1. For scholarship students:
   - "মাসিক বেতন" fees are automatically exempted and marked as "মওকুত"
   - All other fees can be collected as normal
   - UI clearly indicates which fees are exempted
2. For regular students:
   - All fees can be collected as before
   - No changes to existing functionality

### Recent Fees Display
The recent fees section now:
- Shows scholarship exemption status specifically for monthly salary fees
- Maintains all existing functionality for regular students
- Clearly indicates which monthly salary fees are exempted due to scholarship

## Testing
The implementation has been tested to ensure:
1. Scholarship students are properly excluded only from monthly salary fees
2. Scholarship students can still be charged for other fees
3. Regular students continue to work as before for all fee types
4. UI displays appropriate messages for both types of students and fees

## Future Considerations
- Implement additional fee type exemptions for scholarships
- Add configurable exemption rules for different scholarship types
- Create detailed reporting on scholarship-based fee exemptions
- Add partial exemption functionality for specific fee types