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@@ -571,7 +571,7 @@ public abstract class Model<M extends Model> implements Serializable {
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public boolean delete() {
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public boolean delete() {
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Table table = _getTable();
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Table table = _getTable();
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String[] pKeys = table.getPrimaryKey();
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String[] pKeys = table.getPrimaryKey();
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- if (pKeys.length == 1) {
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+ if (pKeys.length == 1) { // 优化：主键大概率只有一个
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Object id = attrs.get(pKeys[0]);
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Object id = attrs.get(pKeys[0]);
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if (id == null)
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if (id == null)
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throw new ActiveRecordException("Primary key " + pKeys[0] + " can not be null");
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throw new ActiveRecordException("Primary key " + pKeys[0] + " can not be null");
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James