public boolean createEntity(Dao dao, Entity<?> en) {
StringBuilder sb = new StringBuilder("CREATE TABLE " + en.getTableName() + "(");
// 创建字段
for (MappingField mf : en.getMappingFields()) {
if (mf.isReadonly()) continue;
sb.append('\n').append(mf.getColumnName());
// 自增主键特殊形式关键字
if (mf.isId() && mf.isAutoIncreasement()) {
sb.append(" SERIAL");
} else {
sb.append(' ').append(evalFieldType(mf));
// 非主键的 @Name，应该加入唯一性约束
if (mf.isName() && en.getPkType() != PkType.NAME) {
sb.append(" UNIQUE NOT NULL");
}
// 普通字段
else {
if (mf.isUnsigned()) sb.append(" UNSIGNED");
if (mf.isNotNull()) sb.append(" NOT NULL");
if (mf.isAutoIncreasement()) throw Lang.noImplement();
if (mf.hasDefaultValue())
sb.append(" DEFAULT '").append(getDefaultValue(mf)).append('\'');
}
}
sb.append(',');
}
// 创建主键
List<MappingField> pks = en.getPks();
if (!pks.isEmpty()) {
sb.append('\n');
sb.append(
String.format(
"CONSTRAINT %s_pkey PRIMARY KEY (",
en.getTableName().replace('.', '_').replace('"', '_')));
for (MappingField pk : pks) {
sb.append(pk.getColumnName()).append(',');
}
sb.setCharAt(sb.length() - 1, ')');
sb.append("\n ");
}
// 结束表字段设置
sb.setCharAt(sb.length() - 1, ')');
// 执行创建语句
dao.execute(Sqls.create(sb.toString()));
// 创建索引
dao.execute(createIndexs(en).toArray(new Sql[0]));
// 创建关联表
createRelation(dao, en);
// 添加注释(表注释与字段注释)
addComment(dao, en);
return true;
}
@SuppressWarnings({"unchecked", "rawtypes"})
public static boolean filterFields(
Object obj, FieldMatcher matcher, Dao dao, Callback2<MappingField, Object> callback) {
if (obj == null) return false;
obj = Lang.first(obj);
if (obj == null) {
return false;
}
if (obj.getClass() == Class.class) {
throw Lang.impossible();
}
if (obj instanceof String || obj instanceof Number || obj instanceof Boolean) {
throw Lang.impossible();
}
Entity en = dao.getEntity(obj.getClass());
if (en == null) {
throw Lang.impossible();
}
List<MappingField> mfs = en.getMappingFields();
if (matcher != null) {
Iterator<MappingField> it = mfs.iterator();
while (it.hasNext()) {
MappingField mf = it.next();
if (!matcher.match(mf.getName())) it.remove();
}
}
boolean flag = false;
for (MappingField mf : mfs) {
if (matcher.isIgnoreId() && mf.isId()) continue;
if (matcher.isIgnoreName() && mf.isName()) continue;
if (matcher.isIgnorePk() && mf.isCompositePk()) continue;
Object val = mf.getValue(obj);
if (val == null) {
if (matcher.isIgnoreNull()) continue;
}
if (val instanceof Number && ((Number) val).doubleValue() == 0.0) {
if (matcher.isIgnoreZero()) continue;
}
if (val instanceof Date) {
if (matcher.isIgnoreDate()) continue;
}
callback.invoke(mf, val);
flag = true;
}
return flag;
}
