static void updateQueryHandler(ref QueryBuilder newQuery, string sqlStr)
{
string[] tokenList = new string[] { "update", "set", "where", "nullterminator" };
System.Collections.ArrayList tokenised = new System.Collections.ArrayList();
newQuery.setType(ABSTRACTQUERYTYPES.UpdateQuery);
// build the token list
tokenised = SQLConsole.Data.utils.tokenizeList(sqlStr, tokenList);
foreach (tokenItem tokenitem in tokenised)
{
string tokenString = tokenitem.tokenValue;
string comString = tokenitem.tokenName;
string paramString = tokenString.Substring(tokenString.IndexOf(comString) + comString.Length + 1).Trim();
//string comString = tokenString.Substring(0, tokenString.IndexOf(" ")).Trim();
//string paramString = tokenString.Substring(tokenString.IndexOf(" ") + 1).Trim();
string tablename = "";
switch (comString)
{
case "update":
tablename = paramString;
newQuery.addSource(tablename);
break;
case "set":
// set something=something, ilsjeiljg='sejil=gji\'seg', sjegiiljseg=slegijl
string curKey = ""; string curVal = "";
bool strQuoting = false;
bool doKey = false;
bool doAdd = false;
for (int i = 0; i <= paramString.Length; i++)
{
if (!doKey)
{
if (i < paramString.Length)
{
if (paramString[i].Equals('='))
doKey = true;
else if (!paramString[i].Equals(',') && !paramString[i].Equals(' '))
curKey += paramString[i];
}
}
else
{
if (i < paramString.Length)
{
if ((paramString[i].Equals('\'')) && (!paramString[i - 1].Equals('\\')))
{
if (strQuoting)
{
strQuoting = false;
doAdd = true;
}
else
{
strQuoting = true; i++;
}
}
else if ((paramString[i].Equals(',')) && (strQuoting == false))
{
doAdd = true;
i++;
}
}
else doAdd = true;
if (doAdd)
{
string fieldname = curKey;
string fieldValue = curVal;
strQuoting = false;
doAdd = false;
doKey = false;
newQuery.addField(new AField(fieldname.Trim(), fieldValue.Trim()));
curKey = "";
curVal = "";
}
else
{
curVal += paramString[i];
}
}
}
break;
case "where":
newQuery.conditionalString = paramString;
break;
}
}
}
static void insertQueryHandler(ref QueryBuilder newQuery, string sqlStr)
{
try
{
newQuery.setType(ABSTRACTQUERYTYPES.InsertQuery);
string[] tokens = sqlStr.Split(' ');
System.Collections.Queue fieldQueue = new System.Collections.Queue(15);
for (int i = 0; i < tokens.Length; i++)
{
string tokenPeek = tokens[i];
if (tokens[i].Equals("into")) //Next token will be the tablename
newQuery.addSource(tokens[++i]);
if ((tokens[i].Equals("(")) && (!tokens[i - 2].Equals("values")))
{ //fieldlist
// process fieldlist
string fieldname;
i++; //just move forward to the tagset.
while (!tokens[i].Equals(")"))
{
fieldname = tokens[i++];
//if (fieldname.Trim().Substring(fieldname.Length - 1).Equals(","))
// fieldname = fieldname.Trim().Substring(0, fieldname.Trim().Length - 1);
foreach(string field in fieldname.Split(','))
if(field.Trim().Length > 0)
fieldQueue.Enqueue(field);
}
string test = tokens[i + 1];
}
else if ((tokens[i + 1].Equals("(")) && (tokens[i].ToLower().Equals("values")))
{ //valuelist
// process valuelist
i++; i++;
string restOfString = "";
while (i < tokens.Length)
restOfString += tokens[i++] + " ";
int strquoteon = 0;
string fieldVal = "";
bool quotedType = false;
for (int x = 0; x < restOfString.Length; x++)
{
if ((restOfString[x].Equals('\'')) && (strquoteon == 0))
{
strquoteon = 1;
quotedType = true;
//x++; //skip the quote
fieldVal = "";
//fieldVal += restOfString[x];
}
else if ((strquoteon == 0) && ((restOfString[x].Equals(',')) || (restOfString[x].Equals(')'))))
{
string fieldname = (string)fieldQueue.Dequeue();
// Make sure we're not quoting.
newQuery.addField(new AField(fieldname, fieldVal.Trim()));
fieldVal = "";
quotedType = false;
}
else if (x > 0)
{
if (restOfString[x].Equals('\'') && restOfString[x + 1].Equals('\''))
{
// escaped quote
fieldVal += "''";
x = x + 1;
}
// case for if it appears like an
// escaped quote, but it is not
// eg: '\\' as the value
else if (restOfString[x].Equals('\\') && restOfString[x + 1].Equals('\'') && !restOfString[x - 1].Equals('\''))
{
// escaped quote
fieldVal += "\\'";
x = x + 1;
}
else
{
if (restOfString[x].Equals('\''))
{
strquoteon = 0;
//fieldVal += restOfString[x];
}
else
{
if (!((strquoteon == 0) && (quotedType == true)))
fieldVal += restOfString[x];
}
}
}
else
{
fieldVal += restOfString[x];
}
}
break;
}
}
}
catch (Exception e)
{
System.Diagnostics.Debug.Print(e.Message);
newQuery = null;
}
}
static void selectQueryHandler(ref QueryBuilder newQuery, string sqlStr)
{
string[] tokenList = new string[] { "select", "from", "inner join", "where", "group by", "order by", "limit" };
string tmp = "";
for(int i=0;i<=tokenList.Length-1;i++) {
tmp = tokenList[i];
sqlStr = sqlStr.Replace(tmp, "[" + tmp + "]");
tokenList[i]="["+tmp+"]";
}
System.Collections.ArrayList tokenised = new System.Collections.ArrayList();
newQuery.setType(ABSTRACTQUERYTYPES.SelectQuery);
newQuery.QueryLimit.lStart = -1;
newQuery.QueryLimit.lLimit = -1;
// build the token list
tokenised = SQLConsole.Data.utils.tokenizeList(sqlStr, tokenList);
foreach (tokenItem tokenitem in tokenised)
{
string tokenString = tokenitem.tokenValue;
string comString = tokenitem.tokenName;
string paramString = tokenString.Substring(tokenString.IndexOf(tokenitem.tokenName) + tokenitem.tokenName.Length + 1).Trim();
if(paramString.Length > 10)
if (paramString.Trim().ToLower().Substring(0, "distinct".Length) == "distinct")
{
newQuery.distinct = true;
paramString = paramString.Trim().Substring("distinct ".Length);
}
//string comString = tokenString.Substring(0, tokenString.IndexOf(" ")).Trim();
//string paramString = tokenString.Substring(tokenString.IndexOf(" ") + 1).Trim();
string tableAlias = ""; string tablename = "";
string[] fieldList;
switch (comString)
{
case "select":
string[] fieldnames = paramString.Split(',');
string realname = "";
string agg;
ABSTRACTAGGREGATE aggMode = ABSTRACTAGGREGATE.None;
foreach (string field in fieldnames)
{
realname = field.Trim();
if (field.IndexOf(")") > 0)
{
realname = field.Substring(field.IndexOf("(") + 1, field.IndexOf(")") - field.IndexOf("(") - 1);
realname = realname.Trim();
agg = field.Substring(0, field.IndexOf("(") - 1);
switch (agg)
{
case "count":
aggMode = ABSTRACTAGGREGATE.Count;
break;
case "max":
aggMode = ABSTRACTAGGREGATE.Max;
break;
case "min":
aggMode = ABSTRACTAGGREGATE.Min;
break;
}
}
if (realname.IndexOf(".") > 0)
newQuery.addField(new AField(realname.Substring(realname.IndexOf(".") + 1), null, realname.Substring(0, realname.IndexOf("."))));
else
{
if (realname == "*")
{
// deal with this seperately.
newQuery.addField(new AField(realname, null));
}
else
{
// Work out what source this field belongs to...
string pureName = realname.Substring(realname.IndexOf(".") + 1);
string[] sources = {};
for (int i = 0; i < tokenised.Count; i++)
{
if (((tokenItem)tokenised[i]).tokenName == "from")
{
string sourcesList = ((tokenItem)tokenised[i]).tokenValue;
sourcesList = sourcesList.Substring(sourcesList.IndexOf(((tokenItem)tokenised[i]).tokenName) + ((tokenItem)tokenised[i]).tokenName.Length + 1);
sourcesList.Trim();
string[] sources2 = sourcesList.Split(',');
sources = (string[])utils.ConcatenateArrays(sources, sources2);
}
else if (((tokenItem)tokenised[i]).tokenName == "inner join") {
string sourcesList = ((tokenItem)tokenised[i]).tokenValue;
sourcesList = sourcesList.Substring(sourcesList.IndexOf(((tokenItem)tokenised[i]).tokenName) + ((tokenItem)tokenised[i]).tokenName.Length + 1);
sourcesList = sourcesList.Substring(0, sourcesList.IndexOf(" on "));
sourcesList.Trim();
string[] sources2 = { sourcesList };
sources = (string[])utils.ConcatenateArrays(sources, sources2);
}
else if (((tokenItem)tokenised[i]).tokenName == "outer join") {
string sourcesList = ((tokenItem)tokenised[i]).tokenValue;
sourcesList = sourcesList.Substring(sourcesList.IndexOf(((tokenItem)tokenised[i]).tokenName) + ((tokenItem)tokenised[i]).tokenName.Length + 1);
sourcesList = sourcesList.Substring(0, sourcesList.IndexOf(" on "));
sourcesList.Trim();
string[] sources2 = { sourcesList };
sources = (string[])utils.ConcatenateArrays(sources, sources2);
}
else if (((tokenItem)tokenised[i]).tokenName == "join") {
string sourcesList = ((tokenItem)tokenised[i]).tokenValue;
sourcesList = sourcesList.Substring(sourcesList.IndexOf(((tokenItem)tokenised[i]).tokenName) + ((tokenItem)tokenised[i]).tokenName.Length + 1);
if(sourcesList.IndexOf(" on ") > 0)
sourcesList = sourcesList.Substring(0, sourcesList.IndexOf(" on "));
sourcesList.Trim();
string[] sources2 = { sourcesList };
sources = (string[])utils.ConcatenateArrays(sources, sources2);
}
}
AField newField = null;
foreach (string source in sources)
{
ATable src = null;
if (source.IndexOf(" ") > 0)
src = newQuery.getDatabaseObject().getTableObject(source.Substring(0, source.IndexOf(" ")));
else
src = newQuery.getDatabaseObject().getTableObject(source);
if (src == null)
throw (new Exception("Bad table name exception"));
if (src.getFieldByName(pureName) != null)
{
if (newField != null) throw (new Exception("Ambiguous field name: " + realname + ". Field could belong to more than one source table."));
newField = src.getFieldByName(pureName);
if (source.IndexOf(" ") > 0)
{
newField.owner = source.Substring(source.IndexOf(" ")+1);
}
}
}
if (newField == null)
throw (new Exception("Unable to determine source for field: " + realname));
newQuery.addField(newField);
//newQuery.addField(new AField(realname, null, (ATable)((QueryBuilder.SOURCEBINDING)newQuery.getSourceList()[0]).sourceObject));
//newQuery.addField(new AField(realname,null,""));
}
}
if (realname.IndexOf(".") > 0)
newQuery.getField(realname.Substring(realname.IndexOf(".") + 1), realname.Substring(0, realname.IndexOf("."))).function = aggMode;
else
newQuery.getField(realname).function = aggMode;
}
break;
case "distinct":
newQuery.distinct = true;
break;
case "from":
if (paramString.IndexOf(' ') != -1) {
tableAlias = paramString.Substring(paramString.IndexOf(' ') + 1);
tablename = paramString.Substring(0, paramString.IndexOf(' '));
}
else
tablename = paramString.Trim();
newQuery.addSource(new ATable(tablename, tableAlias));
break;
case "inner join":
System.Collections.ArrayList joinList = new System.Collections.ArrayList();
paramString = "inner join " + paramString;
if (paramString.ToLower().IndexOf("inner join", "inner join".Length + 1) >= 2)
{
while (paramString.Length >= 0)
{
string tmp2 = paramString;
if (paramString.ToLower().IndexOf("inner join", "inner join".Length + 1) >= 2)
tmp2 = paramString.ToLower().Substring(0, paramString.ToLower().IndexOf("inner join", "inner join".Length + 2)).Trim();
else
{
joinList.Add(tmp2);
break;
}
joinList.Add(tmp2);
paramString = paramString.ToLower().Substring(paramString.ToLower().IndexOf("inner join", "inner join".Length + 2)).Trim();
}
}
else
{
joinList.Add(paramString);
}
foreach (string tmpstr in joinList)
{
paramString = tmpstr.Substring("inner join".Length+1);
// inner join anothertable on sjlieglij=sliejgil
string lTmp = paramString.Substring(0, paramString.IndexOf(" on "));
if (lTmp.IndexOf(' ') != -1)
{
tableAlias = lTmp.Substring(lTmp.IndexOf(' ')).Trim();
tablename = lTmp.Substring(0, lTmp.IndexOf(' ')).Trim();
}
else
tablename = lTmp.Trim();
lTmp = paramString.Substring(paramString.IndexOf(" on") + " on".Length + 1);
string srcTable = ""; string dstTable = "";
string srcField = ""; string dstField = "";
srcTable = lTmp.Substring(0, lTmp.IndexOf('='));
dstTable = lTmp.Substring(lTmp.IndexOf('=') + 1);
if (srcTable.IndexOf('.') > 0)
{
// Assume specifed table.
srcField = srcTable.Substring(srcTable.IndexOf(".") + 1);
srcTable = srcTable.Substring(0, srcTable.IndexOf("."));
}
if (dstTable.IndexOf('.') > 0)
{
// Assume specifed table.
dstField = dstTable.Substring(dstTable.IndexOf(".") + 1);
dstTable = dstTable.Substring(0, dstTable.IndexOf("."));
}
newQuery.addSource(new ATable(tablename, tableAlias), ABSTRACTSOURCEBINDTYPES.INNERJOIN, ((QueryBuilder.SOURCEBINDING)newQuery.getSourceList()[newQuery.getSourceList().Count - 1]).sourceObject, srcField, dstField);
}
//newQuery.addSource(new ATable(tablename, tableAlias), ABSTRACTSOURCEBINDTYPES.INNERJOIN, null, lTmp.Substring(0, lTmp.IndexOf('=')), lTmp.Substring(lTmp.IndexOf('=')+1));
break;
case "join":
joinList = new System.Collections.ArrayList();
paramString = "join " + paramString;
if (paramString.ToLower().IndexOf("join", "join".Length + 1) >= 2)
{
while (paramString.Length >= 0)
{
string tmp2 = paramString;
if (paramString.ToLower().IndexOf("join", "join".Length + 1) >= 2)
tmp2 = paramString.ToLower().Substring(0, paramString.ToLower().IndexOf("join", "join".Length + 2)).Trim();
else
{
joinList.Add(tmp2);
break;
}
joinList.Add(tmp2);
paramString = paramString.ToLower().Substring(paramString.ToLower().IndexOf("join", "join".Length + 2)).Trim();
}
}
else
{
joinList.Add(paramString);
}
foreach (string tmpstr in joinList)
{
paramString = tmpstr.Substring("join".Length + 1);
// inner join anothertable on sjlieglij=sliejgil
string lTmp = paramString.Substring(0, paramString.IndexOf(" on "));
if (lTmp.IndexOf(' ') != -1)
{
tableAlias = lTmp.Substring(lTmp.IndexOf(' ')).Trim();
tablename = lTmp.Substring(0, lTmp.IndexOf(' ')).Trim();
}
else
tablename = lTmp.Trim();
lTmp = paramString.Substring(paramString.IndexOf(" on") + " on".Length + 1);
string srcTable = ""; string dstTable = "";
string srcField = ""; string dstField = "";
srcTable = lTmp.Substring(0, lTmp.IndexOf('='));
dstTable = lTmp.Substring(lTmp.IndexOf('=') + 1);
if (srcTable.IndexOf('.') > 0)
{
// Assume specifed table.
srcField = srcTable.Substring(srcTable.IndexOf(".") + 1);
srcTable = srcTable.Substring(0, srcTable.IndexOf("."));
}
if (dstTable.IndexOf('.') > 0)
{
// Assume specifed table.
dstField = dstTable.Substring(dstTable.IndexOf(".") + 1);
dstTable = dstTable.Substring(0, dstTable.IndexOf("."));
}
newQuery.addSource(new ATable(tablename, tableAlias), ABSTRACTSOURCEBINDTYPES.INNERJOIN, ((QueryBuilder.SOURCEBINDING)newQuery.getSourceList()[newQuery.getSourceList().Count - 1]).sourceObject, srcField, dstField);
}
//newQuery.addSource(new ATable(tablename, tableAlias), ABSTRACTSOURCEBINDTYPES.INNERJOIN, null, lTmp.Substring(0, lTmp.IndexOf('=')), lTmp.Substring(lTmp.IndexOf('=')+1));
break;
case "where":
// where b.id = sjilegj, b.Name = fjff
// where b.id = silegjlsg and
newQuery.conditionalString = paramString;
break;
case "group by":
fieldList = paramString.Split(',');
foreach(string ff in fieldList) {
newQuery.getField(ff).GroupBy = true;
}
break;
case "order by":
fieldList = paramString.Split(',');
foreach (string ff in fieldList)
{
/* patch...
bugfix: orderby where the field is not in the select field list
* ie: select * from [table] order by field
*/
string fname = null;
string fOrderType = null;
if (ff.IndexOf(' ') > 0)
{
ff.Trim();
fname = ff.Substring(0, ff.IndexOf(' '));
fOrderType = ff.Substring(ff.IndexOf(' ') + 1);
}
else
fname = ff;
if (newQuery.getField(fname) == null)
{
if (fname.IndexOf(".") > 0)
{
string tblName = ((ATable)newQuery.getSourceTableByAlias(fname.Substring(0, fname.IndexOf(".")))).name;
AField fld = newQuery.getDatabaseObject().getTableObject(tblName).getFieldByName((fname.Substring(fname.IndexOf(".") + 1)));
fld.owner = fname.Substring(0, fname.IndexOf("."));
newQuery.addField(fld);
}
else
newQuery.addField(newQuery.getDatabaseObject().GetTableCache().getCachedTable(((ATable)((QueryBuilder.SOURCEBINDING)newQuery.getSourceList()[0]).sourceObject).name).getFieldByName(fname));
}
if(fOrderType != null) {
if (fOrderType.ToLower() == "asc")
newQuery.getField(fname).OrderBy = ABSTRACTORDERTYPE.Ascending;
else
newQuery.getField(fname).OrderBy = ABSTRACTORDERTYPE.Descending;
}
else { //default to order by asc
if (fname.IndexOf(".")>0)
{
fname = fname.Substring(fname.IndexOf(".")+1);
}
if (fname == newQuery.getField(fname).name)
{
newQuery.getField(fname).OrderBy = ABSTRACTORDERTYPE.Ascending;
}
}
}
break;
case "limit":
newQuery.QueryLimit.lStart = 0;
if (paramString.IndexOf(',') > 0)
{
// format limit 0,5
// format limit offset, count
newQuery.QueryLimit.lStart = Convert.ToInt32(paramString.Substring(0, paramString.IndexOf(',')));
newQuery.QueryLimit.lLimit = Convert.ToInt32(paramString.Substring(paramString.IndexOf(',') + 1));
}
else
newQuery.QueryLimit.lLimit = Convert.ToInt32(paramString);
break;
}
}
}
public static QueryBuilder CreateQueryBuilder(string csql, Database dbObj)
{
// This function will create a querybuilder object from commonsql
QueryBuilder newQuery = new QueryBuilder(dbObj);
// normalize commonsql:
int offset = 0;
int iQuote = 0;
if (csql.IndexOf(";") <= 0) csql += ";";
for (int i = 0; i < (csql.Length-offset); i++)
{
if (csql[i] == '\'' && iQuote == 0)
iQuote = 1;
else
if (csql[i] == '\'' && iQuote == 1)
{
if(csql[i-1] != '\'' && csql[i-1] != '\\')
iQuote = 0;
}
else if (iQuote == 0)
{
if ((csql[i + offset].Equals('(') || csql[i + offset].Equals(')')) && (!csql[(i + offset) - 1].Equals(' ')))
{ // space to the left
csql = csql.Insert((i + (offset++)), " ");
}
if ((csql[i + offset].Equals('(') || csql[i + offset].Equals(')')) && (!csql[(i + offset) + 1].Equals(' ')))
{ // space to the left
csql = csql.Insert((i + (offset++)) + 1, " ");
}
}
}
// endnormalize
string[] sqlStatements = csql.Split(';');
foreach (string sqlStr in sqlStatements)
{
if (!sqlStr.Trim().Equals(""))
{
//if (sqlStr.Substring(sqlStr.Length - 1).Equals(";"))
// sqlStr = sqlStr.Substring(0, sqlStr.Length - 1);
string[] tokens = sqlStr.Split(' ');
switch (tokens[0].ToLower())
{
case "drop":
if (tokens[1].ToLower().Equals("table"))
newQuery.setType(ABSTRACTQUERYTYPES.DropQuery);
if (tokens[1].ToLower().Equals("database"))
newQuery.setType(ABSTRACTQUERYTYPES.DropQuery);
newQuery.addSource(tokens[2].ToLower());
newQuery.addField(new AField("droptype", tokens[1].ToLower()));
break;
case "insert":
insertQueryHandler(ref newQuery, sqlStr);
break;
case "delete":
deleteQueryHandler(ref newQuery, sqlStr);
break;
case "show":
break;
case "select":
selectQueryHandler(ref newQuery, sqlStr);
break;
case "update":
updateQueryHandler(ref newQuery, sqlStr);
break;
case "alter":
alterQueryHandler(ref newQuery, sqlStr);
break;
}
}
}
return newQuery;
}
