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from and having clause added with auto left joins

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This commit is contained in:
ankitg
2010-08-12 05:20:44 +05:30
parent 638cee4dec
commit e6bb88117f
3 changed files with 358 additions and 8 deletions
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220
pmd/scripts/history.js
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@@ -100,7 +100,7 @@ function and_or(index) {
}
/**
* To display details of obects(where,rename,aggregate,groupby,orderby)
* To display details of obects(where,rename,aggregate,groupby,orderby,having)
*
* @param index index of history_array where change is to be made
*
@@ -124,6 +124,16 @@ function detail (index) {
if (type == "OrderBy") {
str = 'OrderBy ' + history_array[index].get_column_name() ;
}
if (type == "Having") {
str = 'Having ';
if (history_array[index].get_obj().get_operator() != 'None') {
str += history_array[index].get_obj().get_operator() + '( ' + history_array[index].get_column_name() + ' )';
str += history_array[index].get_obj().getrelation_operator() + history_array[index].get_obj().getquery();
}
else {
str = 'Having ' + history_array[index].get_column_name() + history_array[index].get_obj().getrelation_operator() + history_array[index].get_obj().getquery();
}
}
return str;
}
@@ -137,6 +147,12 @@ function detail (index) {
**/
function history_delete(index) {
for(var k =0 ;k < from_array.length;k++){
if(from_array[k] == history_array[index].get_tab()){
from_array.splice(k,1);
break;
}
}
history_array.splice(index,1);
var existingDiv = document.getElementById('ab');
existingDiv.innerHTML = display(0,0);
@@ -162,6 +178,16 @@ function history_edit(index) {
document.getElementById('query_where').style.zIndex = '9';
document.getElementById('query_where').style.visibility = 'visible';
}
if (type == "Having") {
document.getElementById('hQuery').value = history_array[index].get_obj().getquery();
document.getElementById('hrel_opt').value = history_array[index].get_obj().getrelation_operator();
document.getElementById('hoperator').value = history_array[index].get_obj().get_operator();
document.getElementById('query_having').style.left = '230px';
document.getElementById('query_having').style.top = '330px';
document.getElementById('query_having').style.position = 'absolute';
document.getElementById('query_having').style.zIndex = '9';
document.getElementById('query_having').style.visibility = 'visible';
}
if (type == "Rename") {
document.getElementById('query_rename_to').style.left = '230px';
document.getElementById('query_rename_to').style.top = '330px';
@@ -209,6 +235,14 @@ function edit(type) {
}
document.getElementById('query_where').style.visibility = 'hidden';
}
if (type == "Having") {
if (document.getElementById('hrel_opt').value != '--' && document.getElementById('hQuery').value !="") {
history_array[g_index].get_obj().setquery(document.getElementById('hQuery').value);
history_array[g_index].get_obj().setrelation_operator(document.getElementById('hrel_opt').value);
history_array[g_index].get_obj().set_operator(document.getElementById('hoperator').value);
}
document.getElementById('query_having').style.visibility = 'hidden';
}
var existingDiv = document.getElementById('ab');
existingDiv.innerHTML = display(0,0);
panel(1);
@@ -287,6 +321,7 @@ function history(ncolumn_name,nobj,ntab,nobj_no,ntype) {
*
**/
var where = function (nrelation_operator,nquery) {
var relation_operator;
var query;
@@ -306,6 +341,33 @@ var where = function (nrelation_operator,nquery) {
this.setrelation_operator(nrelation_operator);
};
var having = function (nrelation_operator,nquery,noperator) {
var relation_operator;
var query;
var operator;
this.set_operator = function(noperator) {
operator = noperator;
};
this.setrelation_operator = function(nrelation_operator) {
relation_operator = nrelation_operator;
};
this.setquery = function(nquery) {
query = nquery;
};
this.getquery = function() {
return query;
};
this.getrelation_operator = function() {
return relation_operator;
};
this.get_operator = function() {
return operator;
};
this.setquery(nquery);
this.setrelation_operator(nrelation_operator);
this.set_operator(noperator);
};
/**
* rename object closure,makes an object with all information of rename
*
@@ -342,7 +404,29 @@ var aggregate = function(noperator) {
this.set_operator(noperator);
};
function unique(arrayName) {
var newArray=new Array();
label:for(var i=0; i<arrayName.length;i++ )
{
for(var j=0; j<newArray.length;j++ )
{
if(newArray[j]==arrayName[i])
continue label;
}
newArray[newArray.length] = arrayName[i];
}
return newArray;
}
function found(arrayName,value) {
for(var i=0; i<arrayName.length; i++) {
if(arrayName[i] == value) { return 1;}
}
return -1;
}
function build_query(formtitle, fadin) {
var q_select = "SELECT ";
var temp;
for(i = 0;i < select_field.length; i++) {
@@ -358,10 +442,14 @@ function build_query(formtitle, fadin) {
}
}
q_select = q_select.substring(0,q_select.length - 1);
q_select += " FROM WHERE ";
q_select += query_where();
if(query_groupby() != "") { q_select += "GROUP BY" + query_groupby(); }
if(query_orderby() != "") { q_select += "ORDER BY" + query_orderby(); }
q_select += " FROM " + query_from();
if(query_where() != "") {
q_select +="\n WHERE";
q_select += query_where();
}
if(query_groupby() != "") { q_select += "\nGROUP BY " + query_groupby(); }
if(query_having() != "") { q_select += "\nHAVING " + query_having(); }
if(query_orderby() != "") { q_select += "\nORDER BY " + query_orderby(); }
var box = document.getElementById('box');
document.getElementById('filter').style.display='block';
var btitle = document.getElementById('boxtitle');
@@ -379,6 +467,107 @@ function build_query(formtitle, fadin) {
// document.getElementById('hint').style.visibility = "visible";
}
function query_from() {
var i =0;
var tab_left = [];
var tab_used = [];
var t_tab_used = [];
var t_tab_left = [];
var temp;
var query = "";
var quer = "";
var parts = [];
var t_array = [];
t_array = from_array;
var K = 0;
for(i; i < history_array.length ; i++) {
from_array.push(history_array[i].get_tab());
}
from_array = unique( from_array );
tab_left = from_array;
temp = tab_left.shift();
quer = temp;
tab_used.push(temp);
for( i =0; i<2 ; i++) {
for (K in contr){
for (key in contr[K]){// contr name
// if master table (key2) matches with tab used get all keys and check if tab_left matches
//after this check if master table (key2) matches with tab left then check if any foriegn matches with master .
for (key2 in contr[K][key]){// table name
parts = key2.split(".");
if(found(tab_used,parts[1]) > 0) {
for (key3 in contr[K][key][key2]) {
parts1 = contr[K][key][key2][key3][0].split(".");
if(found(tab_left,parts1[1]) > 0) {
query += "\n" + 'LEFT JOIN ';
query += '`' + parts1[0] + '`.`' + parts1[1] + '` ON ' ;
query += '`' + parts[1] +'`.`' + key3 + '` = ';
query += '`' + parts1[1] + '`.`' + contr[K][key][key2][key3][1] + '` ';
t_tab_left.push(parts1[1]);
}
}
}
}
}
}
K = 0;
t_tab_left = unique (t_tab_left);
tab_used = add_array(t_tab_left,tab_used);
tab_left = remove_array(t_tab_left,tab_left);
t_tab_left = [];
for (K in contr) {
for (key in contr[K]) {
for (key2 in contr[K][key]){// table name
parts = key2.split(".");
if(found(tab_left,parts[1]) > 0)
{
for (key3 in contr[K][key][key2]) // field name
{
parts1 = contr[K][key][key2][key3][0].split(".");
if(found(tab_used,parts1[1]) > 0) {
query += "\n" + 'LEFT JOIN ';
query += '`' + parts[0] + '`.`' + parts[1] + '` ON ' ;
query += '`' + parts1[1] + '`.`' + contr[K][key][key2][key3][1] + '` = ';
query += '`' + parts[1] + '`.`' + key3 + '` ';
t_tab_left.push(parts[1]);
}
}
}
}
}
}
t_tab_left = unique (t_tab_left);
tab_used = add_array(t_tab_left,tab_used);
tab_left = remove_array(t_tab_left,tab_left);
t_tab_left = [];
}
for (k in tab_left) {
quer += " , `" + tab_left[k] + "`";
}
query = quer + query;
from_array = t_array;
return query;
}
/* document.write(key3+";"); //master_field
document.write(contr[K][key][key2][key3][0]+";"); // foreign_table
document.write(contr[K][key][key2][key3][1]+";"); //forieign_feild */
function add_array(add,arr){
for( var i=0; i<add.length; i++){
arr.push(add[i]);
}
return arr;
}
function remove_array(rem,arr){
for(var i=0; i<rem.length; i++){
for(var j=0; j<arr.length; j++)
if(rem[i] == arr[j]) { arr.splice(j,1); }
}
return arr;
}
function query_groupby() {
var i = 0;
var str = "";
@@ -389,6 +578,25 @@ function query_groupby() {
return str;
}
function query_having() {
var i = 0;
var and = "(";
for(i; i < history_array.length;i++) {
if(history_array[i].get_type() == "Having") {
if (history_array[i].get_obj().get_operator() != 'None') {
and += history_array[i].get_obj().get_operator() + "(" + history_array[i].get_column_name() + " ) " + history_array[i].get_obj().getrelation_operator();
and += " " + history_array[i].get_obj().getquery() + ", " ;
}
else {
and += history_array[i].get_column_name() + " " + history_array[i].get_obj().getrelation_operator() + " " + history_array[i].get_obj().getquery() + ", ";
}
}
}
if (and =="(") { and = "" ;}
else { and = and.substr(0,and.length -2) + ")";}
return and;
}
function query_orderby() {
var i = 0;
var str = "" ;
@@ -417,7 +625,7 @@ function query_where(){
else { or = "" ;}
if (and !="(") {and = and.substring(0,(and.length - 5)) + ")"; }
else {and = "" ;}
and = and + " OR " + or + " )";
if ( or != "" ) { and = and + " OR " + or + " )"; }
return and;
}