root/lex/trunk/jsp/rules.jsp

<%@ include file="include/setup.jsp" %>
<%@ include file="include/auth.jsp" %>

<% String pageTitle = "Parser Rules"; %>
<%@ include file="include/header.jsp" %>

<%@ page import="java.util.*" %>
<%@ page import="java.sql.ResultSet" %>
<%@ page import="com.qwirx.lex.ontology.*" %>
<%@ page import="com.qwirx.lex.wordnet.*" %>
<%@ page import="com.qwirx.lex.parser.*" %>
<%@ page import="com.qwirx.lex.morph.*" %>

<script language="javascript">
<!--
        
        function confirm_delete()
        {
                return confirm("Are you sure you want to delete this rule?");
        }
        
//-->
</script>

<%

    int editRuleId = -1;
    
    {
        String editRuleIdParam = request.getParameter("erid");
        if (editRuleIdParam != null)
        {
                editRuleId = Integer.parseInt(editRuleIdParam);
        }
    }
    
        if (request.getParameter("save") != null)
        {
                Change ch = sql.createChange(SqlChange.UPDATE, 
                                "lexicon_entries", "ID = " + editRuleId);
                ch.setString("Symbol", request.getParameter("lhs"));
                ch.setString("Lexeme", request.getParameter("rhs"));
                ch.execute();           
        }
        else if (request.getParameter("delete") != null)
        {
                Change ch = sql.createChange(SqlChange.DELETE, 
                                "lexicon_entries", "ID = " + editRuleId);
                ch.execute();           
        }

    sql.prepareSelect
        ("SELECT ID,Symbol,Lexeme FROM lexicon_entries " +
         "WHERE Symbol IS NOT NULL " +
         "AND   Lexeme IS NOT NULL " +
         "ORDER BY Symbol, Lexeme");
         
    ResultSet rs = sql.select();
    
    if (rs.isLast())
    {
        %><h3>No rules found in database!</h3><%
    }
    else
        { 
                %>
                <form name="edit_rule_form" method="post"
                        action="rules.jsp#rule_<%= editRuleId %>">
                <table border="1">
                <th>ID</th>
                <th>Left-Hand Side</th>
                <th>Right-Hand Side</th>
                <th>Actions</th>
                <%
                
            while (rs.next()) 
        {
                int ruleId = rs.getInt(1);
                
                if (ruleId == editRuleId)
                {
                                %>
                                <tr class="hilite">
                                <%
                }
                else
                {                       
                                %>
                                <tr>
                                <%
                }

                        %>                      
                        <th id="rule_<%= ruleId %>"><%= ruleId %></th>
                        <%
                        
                        if (ruleId == editRuleId)
                        {
                                %>
                                <td><input name="lhs" size="10" value="<%= rs.getString(2) %>" /></td>
                                <td><input name="rhs" size="40" value="<%= rs.getString(3) %>" /></td>
                                <td>
                                        <input type="hidden" name="erid" value="<%= ruleId %>" />
                                        <input type="submit" name="save" value="Save" />
                                        <input type="submit" name="delete" value="Delete" 
                                                onClick="return confirm_delete()" />
                                </td>
                                <%
                        }
                        else
                        {
                                %>
                                <td><%= rs.getString(2) %></td>
                                <td><%= rs.getString(3) %></td>
                                <td><a href="rules.jsp?erid=<%= rs.getInt(1) %>#rule_<%= 
                                        ruleId %>">Edit</a></td>
                                <%
                        }
                        
                        %>                      
                        </tr>
                        <%
                }
                
                %>
                </table>
                </form>
                <%
    }   
%>

<%@ include file="include/footer.jsp" %>