33 lines
528 B
JavaScript
33 lines
528 B
JavaScript
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var Dml = require ('./dml');
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/**
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* The equivalent of a SQL update.
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**/
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module.exports = new Class
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({
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Extends: Dml
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,render: function (batch)
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{
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var sql;
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var n;
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sql = 'UPDATE ' + this.renderTarget (batch) + ' SET ';
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for (n = 0; n < this.field.length; n++)
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{
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if (n > 0)
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sql += ', ';
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sql += this.field[n].render () + ' = ' + this.expr[n].render(batch);
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}
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if (this.where)
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sql += ' WHERE ' + this.where.render (batch);
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sql += ' LIMIT 1'; // Only for security.
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return sql;
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}
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});
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