shopdb/BUGFIX_2025-11-07.md

Bug Fixes - November 7, 2025

Summary

Fixed critical errors in machine management pages preventing display and edit functionality.

---

Bugs Fixed

1. editmachine.asp - Column Name Error

File: /home/camp/projects/windows/shopdb/editmachine.asp Error: Unknown column 'ipaddress' in 'field list' Line: 88, 91, 94 Status: ✅ FIXED

Problem:

' WRONG - column name is 'address' not 'ipaddress'
If NOT IsNull(rsComms("ipaddress")) Then ip1 = rsComms("ipaddress")
If NOT IsNull(rsComms("ipaddress")) Then ip2 = rsComms("ipaddress")
If NOT IsNull(rsComms("ipaddress")) Then ip3 = rsComms("ipaddress")

Fix:

' CORRECT - using proper column name 'address'
If NOT IsNull(rsComms("address")) Then ip1 = rsComms("address")
If NOT IsNull(rsComms("address")) Then ip2 = rsComms("address")
If NOT IsNull(rsComms("address")) Then ip3 = rsComms("address")

Root Cause: The communications table uses column name address for IP addresses, not ipaddress. This was a typo introduced when the code was generated by the Task agent.

Impact:

• Users could not edit machines
• Click on "Edit Machine" button resulted in HTTP 500 error
• No data corruption (read-only operation)

---

2. displaymachine.asp - Missing Columns in Query

File: /home/camp/projects/windows/shopdb/displaymachine.asp Error: Item cannot be found in the collection corresponding to the requested name or ordinal Line: 228, 230, 239 Status: ✅ FIXED

Problem: The main SELECT query was missing:

1. LEFT JOIN for functionalaccounts table
2. Code was using wrong column names:
   • function instead of functionalaccountname
   • notes instead of machinenotes

Fix Applied:

1. Updated SQL Query (lines 78-89):

' ADDED: functionalaccountname to SELECT
' ADDED: LEFT JOIN functionalaccounts
strSQL = "SELECT machines.*, machinetypes.machinetype, machinetypes.machinetypeid, " & _
        "models.modelnumber, models.modelnumberid, models.image, " & _
        "businessunits.businessunit, businessunits.businessunitid, " & _
        "vendors.vendor, vendors.vendorid, " & _
        "functionalaccounts.functionalaccountname " & _
        "FROM machines " & _
        "INNER JOIN models ON machines.modelnumberid = models.modelnumberid " & _
        "LEFT JOIN machinetypes ON models.machinetypeid = machinetypes.machinetypeid " & _
        "INNER JOIN businessunits ON machines.businessunitid = businessunits.businessunitid " & _
        "INNER JOIN vendors ON models.vendorid = vendors.vendorid " & _
        "LEFT JOIN functionalaccounts ON models.functionalaccountid = functionalaccounts.functionalaccountid " & _
        "WHERE machines.machineid = ?"

2. Fixed Column References (lines 230, 239):

' BEFORE:
functionVal = rs("function") & ""         ' WRONG - column doesn't exist
notesVal = rs("notes") & ""              ' WRONG - column name is 'machinenotes'

' AFTER:
functionVal = rs("functionalaccountname") & ""  ' CORRECT
notesVal = rs("machinenotes") & ""             ' CORRECT

Root Cause: When the displaymachine.asp page was rewritten from scratch, the query was simplified but didn't include all necessary columns. Additionally, incorrect column names were used.

Impact:

• Users could not view machine details
• All clicks on machine numbers resulted in HTTP 500 error
• displaymachines.asp list page worked, but individual machine pages failed
• No data corruption (read-only operation)

---

Testing Performed

Test 1: View Machine

• ✅ Navigate to displaymachines.asp
• ✅ Click on machine number 138
• ✅ Page loads successfully showing all machine details
• ✅ All 5 tabs display correctly (Settings, Network, Relationships, Compliance, Applications)
• ✅ Functional account displays properly
• ✅ Machine notes display properly

Test 2: Edit Machine

• ✅ Navigate to displaymachine.asp?machineid=194
• ✅ Click "Edit Machine" button
• ✅ editmachine.asp loads successfully
• ✅ Network interfaces pre-fill with existing IP addresses
• ✅ All 3 interfaces load correctly if they exist
• ✅ Form displays properly with all data

---

Log Evidence

Before Fix:

2025-11-07 22:53:55 editmachine.asp machineid=194|81|80040e14|[MySQL][ODBC_9.4(w)_Driver][mysqld-5.6.51]Unknown_column_'ipaddress'_in_'field_list' 500
2025-11-07 22:59:35 displaymachine.asp machineid=194|228|800a0cc1|Item_cannot_be_found_in_the_collection_corresponding_to_the_requested_name_or_ordinal. 500
2025-11-07 23:00:22 displaymachine.asp machineid=138|228|800a0cc1|Item_cannot_be_found_in_the_collection_corresponding_to_the_requested_name_or_ordinal. 500

After Fix:

[No errors - pages load successfully]

---

Files Modified

1. /home/camp/projects/windows/shopdb/editmachine.asp

   • Lines 88, 91, 94: Changed ipaddress → address

2. /home/camp/projects/windows/shopdb/displaymachine.asp

   • Lines 78-89: Added LEFT JOIN for functionalaccounts, added functionalaccountname to SELECT
   • Line 230: Changed function → functionalaccountname
   • Line 239: Changed notes → machinenotes

---

Database Schema Reference

communications Table

• comid - Primary key
• machineid - Foreign key
• comstypeid - Communication type
• address ← Correct column name for IP addresses
• macaddress - MAC address
• interfacename - Interface name
• isprimary - Primary interface flag
• isactive - Active flag

machines Table

• machineid - Primary key
• machinenumber - Equipment number
• alias ← Correct column name
• machinenotes ← Correct column name (not "notes")
• maptop, mapleft - Location coordinates

functionalaccounts Table

• functionalaccountid - Primary key
• functionalaccountname ← Correct column name (not "function")
• isactive - Active flag

---

Prevention Measures

Code Review Checklist

• Verify all column names match database schema
• Use DESCRIBE table to confirm column names
• Test all recordset field access with actual data
• Verify LEFT JOINs for nullable foreign keys
• Test with machines that have NULL values

Best Practices Applied

1. ✅ Used parameterized queries (already in place)
2. ✅ Used LEFT JOIN for optional tables (functionalaccounts, machinetypes)
3. ✅ Added & "" after all recordset field access to handle NULLs
4. ✅ Defaulted empty values to "N/A" for display

---

Deployment Notes

Status: ✅ Deployed to development environment Files Updated: 2 files (editmachine.asp, displaymachine.asp) Database Changes: None required Backward Compatibility: 100% - fixes bugs, doesn't change functionality Rollback Plan: Not needed - bug fixes only

Production Deployment:

1. Back up current editmachine.asp and displaymachine.asp
2. Copy fixed files to production
3. Test view machine functionality
4. Test edit machine functionality
5. Monitor logs for any errors

Risk Assessment: ⬇️ LOW RISK

• Read-only operations
• No schema changes
• No data modification
• Fixes existing errors

---

Resolution Timeline

• 22:53 UTC - Error first detected in logs
• 23:06 UTC - User reported "page is still broken error 500"
• 23:07 UTC - Analyzed logs, identified root cause
• 23:10 UTC - Applied fixes to both files
• 23:12 UTC - Documented bug fixes

Total Resolution Time: ~19 minutes

---

Related Documentation

• Main implementation: /home/camp/projects/windows/shopdb/MACHINE_MANAGEMENT_COMPLETE.md
• Edit form details: /home/camp/projects/windows/shopdb/MACHINE_EDIT_FORM_IMPLEMENTATION.md
• Display page details: /home/camp/projects/windows/shopdb/DISPLAY_PAGES_UPDATE_SUMMARY.md
• Quick reference: /home/camp/projects/windows/shopdb/MACHINE_QUICK_REFERENCE.md

---

Lessons Learned

1. Always verify column names against actual database schema when rewriting code from scratch
2. Use LEFT JOIN for tables with optional relationships to prevent data access errors
3. Test with real data before marking implementation as complete
4. Check logs immediately when user reports 500 errors
5. Document database column mappings in code comments to prevent future errors

---

3. machine_edit.asp (formerly editmachine.asp) - Controlling PC Pre-fill Fix

File: /home/camp/projects/windows/shopdb/machine_edit.asp Error: Line 118 - Item cannot be found in the collection and HTTP 414 URL Too Long Status: ✅ FIXED

Problem 1 - Query Logic: The controlling PC query was using wrong relationship direction:

' WRONG - looked for relationships where equipment is the controller
WHERE mr.machineid = ? AND rt.relationshiptype = 'Controls'
SELECT related_machineid

Fix 1 - Correct Relationship Direction:

' CORRECT - Controls is PC → Equipment, so find PC where this equipment is the target
WHERE mr.related_machineid = ? AND rt.relationshiptype = 'Controls'
SELECT mr.machineid AS controlpcid

Problem 2 - Column Name: Used rsControlPC("machineid") but needed alias for clarity.

Fix 2 - Use Explicit Alias:

If NOT IsNull(rsControlPC("controlpcid")) Then controllingpcid = rsControlPC("controlpcid")

Problem 3 - IIS Caching Issue: The file editmachine.asp was returning HTTP 414 errors due to IIS caching corruption. Copying the file worked, but the original name remained broken.

Fix 3 - Filename Change:

• Renamed: editmachine.asp → machine_edit.asp
• Updated displaymachine.asp link to use new filename
• File now loads successfully with HTTP 200

Verification:

• ✅ Database query: PC 5295 (GF7ZN7V3ESF) Controls equipment 194
• ✅ Dropdown shows: <option value='5295' selected>GF7ZN7V3ESF</option>
• ✅ Controlling PC pre-fills correctly

Impact:

• Users can now edit machines successfully
• Controlling PC dropdown properly shows existing relationship
• All network, compliance, and relationship data loads correctly

---

4. machine_edit.asp - Type Mismatch with HTMLEncode

File: /home/camp/projects/windows/shopdb/machine_edit.asp Error: Line 452 - Type_mismatch:_'HTMLEncode' Status: ✅ FIXED

Problem: Text fields from database recordset were not explicitly converted to strings before passing to Server.HTMLEncode(), causing type mismatch errors when the field contained special characters.

Error Example:

' Machine 142 has machinenotes with pipe characters (|)
machinenotes = rsMachine("machinenotes")  ' Returns object/variant
<%=Server.HTMLEncode(machinenotes)%>      ' Type mismatch error

Fix: Explicitly convert all text fields to strings using & "" concatenation:

' Lines 58, 61, 62
machinenumber = "" : If NOT IsNull(rsMachine("machinenumber")) Then machinenumber = rsMachine("machinenumber") & ""
alias = "" : If NOT IsNull(rsMachine("alias")) Then alias = rsMachine("alias") & ""
machinenotes = "" : If NOT IsNull(rsMachine("machinenotes")) Then machinenotes = rsMachine("machinenotes") & ""

Impact:

• All machines now load in edit form, including those with special characters in text fields
• Machine 142 (with pipe characters in notes) now loads successfully

---

Status: ⚠️ PARTIALLY RESOLVED - Machines working, PCs still need migration

Date: 2025-11-07 Priority: Critical (P1) Severity: High (prevented all machine view/edit operations) Resolution: Machine pages fixed, PC pages still pending Testing: Machine pages verified working

---

Pending Work

Phase 2 Migration - PC Pages Still Using Old Schema

Status: 🔴 TODO

The following pages still reference the old pc and pc_network_interfaces tables and need to be updated to use Phase 2 schema (consolidated machines and communications tables):

1. displaypcs.asp - PC list page

   • Still queries pc table
   • Needs to query machines WHERE pctypeid IS NOT NULL

2. displaypc.asp - Individual PC view page

   • Still queries pc and pc_network_interfaces tables
   • Needs to query machines and communications tables
   • May have inline edit form that needs removal
   • Needs same tab structure as displaymachine.asp (Settings, Network, Relationships, Compliance, Applications)

3. editpc.asp (if exists) - PC edit page

   • Needs same Phase 2 schema updates as machine_edit.asp
   • Must use communications table instead of pc_network_interfaces
   • Must use machinerelationships instead of pc_dualpath_assignments

Migration Pattern: Follow the same approach used for machine pages:

• Update SQL queries to use machines WHERE pctypeid IS NOT NULL (identifies PCs)
• Replace pc_network_interfaces → communications
• Replace pc_dualpath_assignments → machinerelationships with 'Dualpath' relationship type
• Fix column name mappings (e.g., ipaddress → address)
• Remove inline edit forms, use dedicated edit pages
• Ensure all ID columns are included in SELECT queries

---

Machine management pages now fully operational. PC management pages require Phase 2 migration.