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 Help with a database program
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JR




PostPosted: Wed Mar 10, 2004 9:46 am   Post subject: Help with a database program

hey, this is a program i made and it stores some book names ect, but when i try to output it i get some bugs and some other stuff. Can u help me fix it? thx and is there an easier way to put all those lines? instead of alot of lines like less.

code:

var num : int
var x : int
var ch : string (1)
var key : string (1)
var data : string
var bookname : array 1 .. 50 of string
var author : array 1 .. 50 of string
var YOP : array 1 .. 50 of string
var category : array 1 .. 50 of string
proc getKey
    getch (ch)
end getKey
proc menu
    cls
    drawfillbox (230, 390, 320, 440, 50)
    var font1 : int
    font1 := Font.New ("Impact:24")
    Font.Draw ("Menu", 250, 400, font1, blue)
    font1 := Font.New ("Impact:14")
    Font.Draw ("Choice 1:   Enter Data", 220, 350, font1, black)
    Font.Draw ("Choice 2:   View Data", 220, 300, font1, black)
    Font.Draw ("Choice 3:   Save Data", 220, 250, font1, black)
    Font.Draw ("Choice 8:   Exit", 220, 200, font1, black)
    put ""

end menu
menu
open : x, "H://A5/x.txt", put, get
loop
    locate (15, 1)
    put "What is your choice ?"
    getch (key)

    menu
    locate (20, 1)
    for i : 1 .. 50

        exit when index ("8", key) > 0
        if index ("1", key) > 0 then
            put "Enter the book name: "
            get bookname (i) : *
            put "Enter book author: "
            get author (i) : *
            put "Enter year of publish: "
            get YOP (i) : *
            put "Enter category: "
            get category (i) : *
            locate (25, 1)
            %press q twice to return to menu, if you wont press q you will just repat the process
            %all over agian
            getKey
            exit when ch = "q"
        elsif index ("2", key) > 0 then
            put "Here is the book data"
            put "BookName: ", bookname (i)
       put "Author: ", author (i)
            put "Year of publish: ", YOP (i)
            put "Category ", category (i)
        elsif index ("3", key) > 0 then
            var persent, progress : int := 0
            setscreen ("graphics:650;420")
            locate (9, 37)
            loop
                for b : 1 .. 1
                    drawfillbox (80 + progress, 185, 85 + progress, 225, 32)
                    delay (30)
                    progress += 5
                end for
                for a : 1 .. 1
                    persent += 1
                    delay (10)
                    locate (10, 40)
                    put "   "
                    locate (10, 40)
                    put "Saving... ", persent, " %"
                end for
                exit when persent = 100
                drawbox (75, 180, 585, 230, black)
            end loop
            cls
            put : x, data
            put " Your data has been saved"
        end if
    end for
end loop
close : x

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Paul




PostPosted: Wed Mar 10, 2004 11:58 am   Post subject: (No subject)

The locate thingy doesn't work well on the school resolution
and here
code:

 put "BookName: ", bookname (i)
       put "Author: ", author (i)
            put "Year of publish: ", YOP (i)
            put "Category ", category (i)

this runs 50 times, during the for loop I think, and if the user only enters one list of stuff, bookname (49) or whatever won't have any values. And so it won't output it.
so if you do this:
code:

for a: 1..50
bookname (a):=""
author(a):=""
YOP(a):=""
category(a):=""
end for

it will actually show everything, including the blank info, but that sux, so you need to have an if statement going something like this:
code:

if bookname(a) not = "" then
put bookname(a)
put author(a)
end if

and so on, also fix your formatting.
JR




PostPosted: Thu Mar 11, 2004 9:37 am   Post subject: (No subject)

where do i exactly put those lines?
Paul




PostPosted: Thu Mar 11, 2004 4:43 pm   Post subject: (No subject)

The first one you can put after your variables if you like, the second one is used to check if there is info in your variables, and if there is, it outputs it. So when a user goes to "View Data" or something, you put it there to output the data, so it won't output spaces.
JR




PostPosted: Thu Mar 11, 2004 6:01 pm   Post subject: (No subject)

ok i put it like that and it still doesnt work.

code:
var num : int
var x : int
var answer : string
var key : string (1)
var data : string
var bookname : array 1 .. 50 of string
var author : array 1 .. 50 of string
var YOP : array 1 .. 50 of string
var category : array 1 .. 50 of string

proc menu
    cls
    drawfillbox (230, 390, 320, 440, 50)
    var font1 : int
    font1 := Font.New ("Impact:24")
    Font.Draw ("Menu", 250, 400, font1, blue)
    font1 := Font.New ("Impact:14")
    Font.Draw ("Choice 1:   Enter Data", 220, 350, font1, black)
    Font.Draw ("Choice 2:   View Data", 220, 300, font1, black)
    Font.Draw ("Choice 3:   Save Data", 220, 250, font1, black)
    Font.Draw ("Choice 8:   Exit", 220, 200, font1, black)
    put ""
end menu
menu
open : x, "H://A5/x.txt", put, get
loop
    locate (15, 1)
    put "What is your choice ?"
    getch (key)
    menu
    locate (20, 1)
    for i : 1 .. 50
        exit when index ("8", key) > 0
        if index ("1", key) > 0 then
            put "Enter the book name: "
            get bookname (i) : *
            put "Enter book author: "
            get author (i) : *
            put "Enter year of publish: "
            get YOP (i) : *
            put "Enter category: "
            get category (i) : *
            locate (25, 1)
            put " do you want to add another book? "
            get answer
            if answer = "yes" then
                put " "
            elsif answer = "no" then
                cls
                menu
                exit
            end if
        elsif index ("2", key) > 0 then
            for a : 1 .. 50
                bookname (a) := ""
                author (a) := ""
                YOP (a) := ""
                category (a) := ""
                if bookname (a) not= "" then
                    put bookname (a)
                    put author (a)

                    put "BookName: ", bookname (i)
                    put "Author: ", author (i)
                    put "Year of publish: ", YOP (i)
                    put "Category ", category (i)
                end if
            end for
        elsif index ("3", key) > 0 then
            var persent, progress : int := 0
            setscreen ("graphics:650;420")
            locate (9, 37)
            loop
                for b : 1 .. 1
                    drawfillbox (80 + progress, 185, 85 + progress, 225, 32)
                    delay (30)
                    progress += 5
                end for
                for a : 1 .. 1
                    persent += 1
                    delay (10)
                    locate (10, 40)
                    put "   "
                    locate (10, 40)
                    put "Saving... ", persent, " %"
                end for
                exit when persent = 100
                drawbox (75, 180, 585, 230, black)
            end loop
            cls
            put : x, data
            put " Your data has been saved"
        end if
    end for
end loop
close : x
Thuged_Out_G




PostPosted: Thu Mar 18, 2004 12:47 am   Post subject: (No subject)

well you see...with this code you have here

code:

for a : 1 .. 50
                bookname (a) := ""
                author (a) := ""
                YOP (a) := ""
                category (a) := ""
                if bookname (a) not= "" then
                    put bookname (a)
                    put author (a)


your setting the array equal to nothing...and then saying, if blah isnt equal blank then put the info...but you are already setting it to be blank, so it will always be blank lol
JR




PostPosted: Thu Mar 18, 2004 3:27 pm   Post subject: (No subject)

so how do i fix it?
Thuged_Out_G




PostPosted: Thu Mar 18, 2004 4:56 pm   Post subject: (No subject)

ugh...your code is messy...you should make everything a procedure
JR




PostPosted: Sun Mar 21, 2004 3:07 pm   Post subject: (No subject)

bah i cant figure it out, can u plz help me?
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