Added transaction menu.

ddbank.sh

@@ -72,7 +72,7 @@ list_balance() {
         echo "2) Exact User Search"
         echo "3) User Search" 
         echo ""
-        echo "0) Go back."
+        echo "q) Go back."
         echo ""
         read -n1 -p "*Balance Menu: Select from the above: " ii
         echo ""
@@ -102,7 +102,7 @@ do
     echo "3) Transfer"
     echo "4) Quick balance check"
     echo ""
-    echo "0) Go Back"
+    echo "q) Go Back"
     echo ""
     read -n1 -p "*Banking Menu: Select from the above: " ii_bank
     echo ""
@@ -137,24 +137,59 @@ do
             read -p "Transer to user: " tran_user2
             read -p "Amount to transfer: " tran_amt
             # Grabs user IDs.
-            tran_user1_id=$($db_conn "select id,username,balance from account join balance using (id) where username='$tran_user1';" | awk 'FNR == 3' | awk -F\| '{print $1}')
-            tran_user2_id=$($db_conn "select id,username,balance from account join balance using (id) where username='$tran_user2';" | awk 'FNR == 3' | awk -F\| '{print $1}')
+            tran_user1_id=$($db_conn "select id,username,balance from account join balance using (id) where username='$tran_user1';" | awk 'FNR == 3' | awk -F\| '{print $1}') || echo "Invalid user!";
+            tran_user2_id=$($db_conn "select id,username,balance from account join balance using (id) where username='$tran_user2';" | awk 'FNR == 3' | awk -F\| '{print $1}') || echo "Invalid user!";
            # Does the math to complete the transfer.
             tran1_new_amt=$($db_conn "select balance - '$tran_amt' from balance where id = '$tran_user1_id';" | awk 'FNR ==3') 
             tran2_new_amt=$($db_conn "select balance + '$tran_amt' from balance where id = '$tran_user2_id';" | awk 'FNR ==3') 
             # Updates the database with the new amounts.
             $db_conn "update balance set balance = '$tran1_new_amt' where id = '$tran_user1_id';" 
-            $db_conn "update balance set balance = '$tran2_new_amt' where id = '$tran_user2_id';" ;;
+            $db_conn "update balance set balance = '$tran2_new_amt' where id = '$tran_user2_id';" 
+            # Transactioning
+            $db_conn "insert into transaction (id,username,amount,timestamp) values ('$tran_user1_id','$tran_user1','-$tran_amt','now');" 
+            LAST_USER=$tran_user1 ;;
+
         4 ) $db_conn "select id,username,balance from account join balance using (id) where username='$LAST_USER';" ;; 
 
-                       
-
- 
         * ) clear ;;
     esac
 done
 }
 
+tran_menu() {
+clear
+while true
+do
+    echo ""
+    echo "1) Show Transactions for user"
+    echo "2) Show last # Transactions."
+    echo ""
+    echo "q) Go back." 
+    echo ::
+    read -n1 -p "*Transaction Menu: Select from above: " ii_tmenu 
+    case $ii_tmenu in
+        1 ) echo ""
+            read -p "Transactions for user: " tmenu_user
+            read -p "Number of transactions: (0 for no limit) " tmenu_num1
+            if [ $tmenu_num1 = 0 ]; then { 
+                tmenu_num1=all
+            } fi
+            $db_conn "select id,username,amount,timestamp from transaction where username = '$tmenu_user' order by timestamp DESC limit $tmenu_num1;" ;;
+        2 ) echo ""
+            read -p "Number of transactions: " tmenu_num2
+            if [ $tmenu_num2 = 0 ]; then { 
+                tmenu_num2=all
+            } fi
+            $db_conn "select id,username,amount,timestamp from transaction order by timestamp DESC limit $tmenu_num2;"
+;;
+        [0q] ) break ;;
+        * ) clear ;;
+
+    esac
+done
+}
+
+
 clear
 while true 
 do
@@ -165,6 +200,7 @@ do
     echo "2) List user accounts."
     echo "3) List user(s) balance."
     echo "4) Banking Menu (Deposit, withdraw, transfer)"
+    echo "5) Transaction Menu"
     echo ""
     echo "9) Clear contents of screen"
     echo "0) Exit"
@@ -175,6 +211,7 @@ do
         2 ) list_user       ;;
         3 ) list_balance    ;;
         4 ) bank_menu       ;;
+        5 ) tran_menu       ;;
         9 ) clear           ;;
         0 ) break           ;;  
         * ) clear           ;;