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Old May 19th, 2004, 10:07 AM
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Default problem with insert

HI everybody

I have a problem, i need insert into a DB 6 values trough a FORM,

i need to insert manually 5 values (which are called PS, CM, CS, EX, BL) ...**the problem is ----> and the sixth value must be the result of adding PS+CM+CS+EX+BL

i have the next code, but i dont have any idea of how perform this calculation on "inserting" time

Can you help me ..please ¡

__________________________________________________ __
<%@ page contentType="text/html; charset=iso-8859-1" language="java" import="java.sql.*" errorPage="" %>
<%@ include file="Connections/myconexion.jsp" %>
<%
// *** Edit Operations: declare variables

// set the form action variable
String MM_editAction = request.getRequestURI();
if (request.getQueryString() != null && request.getQueryString().length() > 0) {
  String queryString = request.getQueryString();
  String tempStr = "";
  for (int i=0; i < queryString.length(); i++) {
    if (queryString.charAt(i) == '<') tempStr = tempStr + "&lt;";
    else if (queryString.charAt(i) == '>') tempStr = tempStr + "&gt;";
    else if (queryString.charAt(i) == '"') tempStr = tempStr + "&quot;";
    else tempStr = tempStr + queryString.charAt(i);
  }
  MM_editAction += "?" + tempStr;
}

// connection information
String MM_editDriver = null, MM_editConnection = null, MM_editUserName = null, MM_editPassword = null;

// redirect information
String MM_editRedirectUrl = null;

// query string to execute
StringBuffer MM_editQuery = null;

// boolean to abort record edit
boolean MM_abortEdit = false;

// table information
String MM_editTable = null, MM_editColumn = null, MM_recordId = null;

// form field information
String[] MM_fields = null, MM_columns = null;
%>
<%
// *** Insert Record: set variables

if (request.getParameter("MM_insert") != null && request.getParameter("MM_insert").toString().equal s("form1")) {

  MM_editDriver = MM_myconexion_DRIVER;
  MM_editConnection = MM_myconexion_STRING;
  MM_editUserName = MM_myconexion_USERNAME;
  MM_editPassword = MM_myconexion_PASSWORD;
  MM_editTable = "DB.agents";
  MM_editRedirectUrl = "";
  String MM_fieldsStr = "PS|value|CM|value|EX|value|CS|value|BL|value|resu ltado|value";
  String MM_columnsStr = "PS|none,none,NULL|CM|none,none,NULL|EX|none,none, NULL|CS|none,none,NULL|BL|none,none,NULL|resultado |none,none,NULL";

  // create the MM_fields and MM_columns arrays
  java.util.StringTokenizer tokens = new java.util.StringTokenizer(MM_fieldsStr,"|");
  MM_fields = new String[tokens.countTokens()];
  for (int i=0; tokens.hasMoreTokens(); i++) MM_fields[i] = tokens.nextToken();

  tokens = new java.util.StringTokenizer(MM_columnsStr,"|");
  MM_columns = new String[tokens.countTokens()];
  for (int i=0; tokens.hasMoreTokens(); i++) MM_columns[i] = tokens.nextToken();

  // set the form values
  for (int i=0; i+1 < MM_fields.length; i+=2) {
    MM_fields[i+1] = ((request.getParameter(MM_fields[i])!=null)?(String)request.getParameter(MM_fields[i]):"");
  }

  // append the query string to the redirect URL
  if (MM_editRedirectUrl.length() != 0 && request.getQueryString() != null) {
    MM_editRedirectUrl += ((MM_editRedirectUrl.indexOf('?') == -1)?"?":"&") + request.getQueryString();
  }
}
%>
<%
// *** Insert Record: construct a sql insert statement and execute it

if (request.getParameter("MM_insert") != null) {

  // create the insert sql statement
  StringBuffer MM_tableValues = new StringBuffer(), MM_dbValues = new StringBuffer();
  for (int i=0; i+1 < MM_fields.length; i+=2) {
    String formVal = MM_fields[i+1];
    String elem;
    java.util.StringTokenizer tokens = new java.util.StringTokenizer(MM_columns[i+1],",");
    String delim = ((elem = (String)tokens.nextToken()) != null && elem.compareTo("none")!=0)?elem:"";
    String altVal = ((elem = (String)tokens.nextToken()) != null && elem.compareTo("none")!=0)?elem:"";
    String emptyVal = ((elem = (String)tokens.nextToken()) != null && elem.compareTo("none")!=0)?elem:"";
    if (formVal.length() == 0) {
      formVal = emptyVal;
    } else {
      if (altVal.length() != 0) {
        formVal = altVal;
      } else if (delim.compareTo("'") == 0) { // escape quotes
        StringBuffer escQuotes = new StringBuffer(formVal);
        for (int j=0; j < escQuotes.length(); j++)
          if (escQuotes.charAt(j) == '\'') escQuotes.insert(j++,'\'');
        formVal = "'" + escQuotes + "'";
      } else {
        formVal = delim + formVal + delim;
      }
    }
    MM_tableValues.append((i!=0)?",":"").append(MM_col umns[i]);
    MM_dbValues.append((i!=0)?",":"").append(formVal);
  }
  MM_editQuery = new StringBuffer("insert into " + MM_editTable);
  MM_editQuery.append(" (").append(MM_tableValues.toString()).append(") values (");
  MM_editQuery.append(MM_dbValues.toString()).append (")");

  if (!MM_abortEdit) {
    // finish the sql and execute it
    Driver MM_driver = (Driver)Class.forName(MM_editDriver).newInstance() ;
    Connection MM_connection = DriverManager.getConnection(MM_editConnection,MM_e ditUserName,MM_editPassword);
    PreparedStatement MM_editStatement = MM_connection.prepareStatement(MM_editQuery.toStri ng());
    MM_editStatement.executeUpdate();
    MM_connection.close();

    // redirect with URL parameters
    if (MM_editRedirectUrl.length() != 0) {
      response.sendRedirect(response.encodeRedirectURL(M M_editRedirectUrl));
      return;
    }
  }
}
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>

<body>
<form method="post" action="<%=MM_editAction%>" name="form1">
  <table align="center">
    <tr valign="baseline">
      <td nowrap align="right">PS:</td>
      <td>
        <input type="text" name="PS" value="" size="32">
      </td>
    </tr>
    <tr valign="baseline">
      <td nowrap align="right">CM:</td>
      <td>
        <input type="text" name="CM" value="" size="32">
      </td>
    </tr>
    <tr valign="baseline">
      <td nowrap align="right">EX:</td>
      <td>
        <input type="text" name="EX" value="" size="32">
      </td>
    </tr>
    <tr valign="baseline">
      <td nowrap align="right">CS:</td>
      <td>
        <input type="text" name="CS" value="" size="32">
      </td>
    </tr>
    <tr valign="baseline">
      <td nowrap align="right">BL:</td>
      <td>
        <input type="text" name="BL" value="" size="32">
      </td>
    </tr>
    <tr valign="baseline">
      <td nowrap align="right">Resultado:</td>
      <td>
        <input type="text" name="resultado" value="" size="32">
      </td>
    </tr>
    <tr valign="baseline">
      <td nowrap align="right">&nbsp;</td>
      <td>
        <input type="submit" value="Insert record">
      </td>
    </tr>
  </table>
  <input type="hidden" name="MM_insert" value="form1">
</form>
<p>&nbsp;</p>
</body>
</html>
__________________________________________________ _____________


:) thanks

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