98 lines
1.7 KiB
JavaScript
98 lines
1.7 KiB
JavaScript
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var Connection = require('./connection');
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module.exports = new Class({
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Extends: Vn.Object
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,Tag: 'db-query'
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,Properties: {
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/**
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* The connection used to execute the statement.
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*/
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conn: {
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type: Connection
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,set: function(x) {
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this._conn = x;
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this.onChange();
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}
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,get: function() {
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return this._conn;
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}
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},
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/**
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* The model query.
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*/
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query: {
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type: String
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,set: function(x) {
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this._stmt = new Sql.String({query: x});
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this.onChange();
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}
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,get: function() {
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return this._stmt.render(null);
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}
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},
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/**
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* The model select statement.
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*/
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stmt: {
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type: Sql.Stmt
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,set: function(x) {
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this._stmt = x;
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this.onChange();
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}
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,get: function() {
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return this._stmt;
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}
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},
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/**
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* The lot used to execute the statement.
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*/
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lot: {
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type: Vn.LotIface
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,set: function(x) {
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this.link({_lot: x}, {'change': this.onChange});
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this.onChange();
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}
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,get: function() {
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return this._lot;
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}
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},
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/**
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* Wether to execute automatically de query que it's ready.
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*/
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autoLoad: {
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type: Boolean,
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value: false
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}
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}
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,appendChild: function(child) {
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if (child.nodeType === Node.TEXT_NODE)
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this.query = child.textContent;
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}
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,loadXml: function(builder, node) {
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Vn.Object.prototype.loadXml.call(this, builder, node);
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var query = node.firstChild.nodeValue;
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if (query)
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this.query = query;
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}
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,execute: function() {
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this._conn.execStmt(this._stmt,
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this.onQueryDone.bind(this), this._lot);
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}
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,onQueryDone: function(resultSet) {
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this.emit('ready', resultSet);
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}
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,onChange: function() {
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if (this.autoLoad && this._conn && this._stmt && this._lot)
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this.execute();
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}
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});
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