3 * Copyright(c) 2006-2009 Ext JS, LLC
5 * http://www.extjs.com/license
8 // Asbtract base class for SqlDB classes
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9 Ext.data.SqlDB = function(config){
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10 Ext.apply(this, config);
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11 Ext.data.SqlDB.superclass.constructor.call(this);
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19 Ext.extend(Ext.data.SqlDB, Ext.util.Observable, {
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24 open : function(file, cb, scope){
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30 exec : function(sql, cb, scope){
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33 execBy : function(sql, args, cb, scope){
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36 query : function(sql, cb, scope){
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39 queryBy : function(sql, args, cb, scope){
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42 // protected/inherited method
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43 isOpen : function(){
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44 return this.openState;
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47 getTable : function(name, keyName){
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48 return new Ext.data.SqlDB.Table(this, name, keyName);
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51 createTable : function(o){
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52 var tableName = o.name;
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53 var keyName = o.key;
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55 var cb = o.callback;
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56 var scope = o.scope;
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57 if(!(fs instanceof Array)){ // Ext fields collection
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61 for(var i = 0, len = fs.length; i < len; i++){
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62 var f = fs[i], s = f.name;
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75 if(f.allowNull === false || f.name == keyName){
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78 if(f.name == keyName){
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79 s += ' PRIMARY KEY';
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81 if(f.unique === true){
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85 buf[buf.length] = s;
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87 var sql = ['CREATE TABLE IF NOT EXISTS ', tableName, ' (', buf.join(','), ')'].join('');
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88 this.exec(sql, cb, scope);
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93 Ext.data.SqlDB.getInstance = function(db, config){
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94 if(window.htmlControl){ // air
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95 return new Ext.data.AirDB(config);
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97 return new Ext.data.GearsDB(config);
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102 Ext.data.SqlDB.Table = function(conn, name, keyName){
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105 this.keyName = keyName;
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108 Ext.data.SqlDB.Table.prototype = {
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109 update : function(o, cb, scope){
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110 var clause = this.keyName + " = :" + this.keyName;
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111 this.updateBy(o, clause, {}, cb, scope);
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114 updateBy : function(o, clause, args, cb, scope){
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115 var sql = "UPDATE " + this.name + " set ";
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116 var fs = [], a = [];
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118 if(o.hasOwnProperty(key)){
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119 fs[fs.length] = key + ' = ?';
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120 a[a.length] = o[key];
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123 for(var key in args){
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124 if(args.hasOwnProperty(key)){
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125 a[a.length] = args[key];
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128 sql = [sql, fs.join(','), ' WHERE ', clause].join('');
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129 this.conn.execBy(sql, a, cb, scope);
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132 insert : function(o, cb, scope){
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133 var sql = "INSERT into " + this.name + " ";
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134 var fs = [], vs = [], a = [];
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136 if(o.hasOwnProperty(key)){
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137 fs[fs.length] = key;
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138 vs[vs.length] = '?';
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139 a[a.length] = o[key];
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142 sql = [sql, '(', fs.join(','), ') VALUES (', vs.join(','), ')'].join('');
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143 this.conn.execBy(sql, a, cb, scope);
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146 select : function(clause, cb, scope){
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147 this.selectBy(clause, null, cb, scope);
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150 selectBy : function(clause, args, cb, scope){
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151 var sql = "select * from " + this.name;
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153 sql += ' ' + clause;
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156 this.conn.queryBy(sql, args, cb, scope);
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159 remove : function(clause, cb, scope){
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160 this.deleteBy(clause, null, cb, scope);
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163 removeBy : function(clause, args, cb, scope){
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164 var sql = "delete from " + this.name;
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166 sql += ' where ' + clause;
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169 this.conn.execBy(sql, args, cb, scope);
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173 Ext.data.SqlDB.Proxy = function(conn, table, keyName, store){
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174 Ext.data.SqlDB.Proxy.superclass.constructor.call(this);
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176 this.table = this.conn.getTable(table, keyName);
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177 this.store = store;
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179 this.store.on('add', this.onAdd, this);
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180 this.store.on('update', this.onUpdate, this);
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181 this.store.on('remove', this.onRemove, this);
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184 Ext.extend(Ext.data.SqlDB.Proxy, Ext.data.DataProxy, {
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185 load : function(params, reader, callback, scope, arg){
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186 if(!this.conn.isOpen()){ // assume that the connection is in the process of opening
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187 this.conn.on('open', function(){
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188 this.load(params, reader, callback, scope, arg);
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189 }, this, {single:true});
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192 if(this.fireEvent("beforeload", this, params, reader, callback, scope, arg) !== false){
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193 var clause = params.where || '';
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194 var args = params.args || [];
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195 var group = params.groupBy;
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196 var sort = params.sort;
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197 var dir = params.dir;
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200 clause += ' ORDER BY ';
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201 if(group && group != sort){
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202 clause += group + ' ASC, ';
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204 clause += sort + ' ' + (dir || 'ASC');
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207 this.table.selectBy(clause, args,
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208 this.onLoad.createDelegate(this, [{callback:callback, scope:scope, arg:arg, reader: reader}], 0));
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210 callback.call(scope||this, null, arg, false);
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214 onLoad : function(trans, rs, e, stmt){
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216 this.fireEvent("loadexception", this, null, trans.arg, e);
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217 trans.callback.call(trans.scope||window, null, trans.arg, false);
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220 var result = trans.reader.readRecords(rs);
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221 this.fireEvent("load", this, rs, trans.arg);
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222 trans.callback.call(trans.scope||window, result, trans.arg, true);
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225 processData : function(o){
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226 var fs = this.store.fields;
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229 var f = fs.key(key), v = o[key];
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231 if(f.type == 'date'){
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232 r[key] = v ? v.format('Y-m-d H:i:s') : '';
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233 }else if(f.type == 'boolean'){
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234 r[key] = v ? 1 : 0;
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243 onUpdate : function(ds, record){
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244 var changes = record.getChanges();
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245 var kn = this.table.keyName;
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246 this.table.updateBy(this.processData(changes), kn + ' = ?', [record.data[kn]]);
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247 record.commit(true);
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250 onAdd : function(ds, records, index){
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251 for(var i = 0, len = records.length; i < len; i++){
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252 this.table.insert(this.processData(records[i].data));
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256 onRemove : function(ds, record, index){
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257 var kn = this.table.keyName;
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258 this.table.removeBy(kn + ' = ?', [record.data[kn]]);
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