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Jaime Jiménez
2025-09-26 17:57:06 +02:00
parent 01a1ac4b71
commit 88b43847f0
29 changed files with 27681 additions and 138 deletions
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26
src/main/java/com/imprimelibros/erp/datatables/DataTablesSpecification.java
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@ -8,30 +8,42 @@ import java.util.List;
public class DataTablesSpecification {
/**
* Crea una Specification con búsqueda global y por columna (LIKE case-insensitive)
* @param dt request de datatables
* Crea una Specification con búsqueda global y por columna (LIKE
* case-insensitive)
*
* @param dt request de datatables
* @param searchableFields campos del entity para el buscador global
*/
public static <T> Specification<T> build(DataTablesRequest dt, List<String> searchableFields) {
return (root, query, cb) -> {
List<Predicate> ands = new ArrayList<>();
// Filtro por columna (si quieres soportarlo)
// Filtro por columna (si lo usas en el cliente)
for (int i = 0; i < dt.columns.size(); i++) {
DataTablesRequest.Column col = dt.columns.get(i);
if (col.searchable && col.search != null && col.search.value != null && !col.search.value.isEmpty()) {
ands.add(like(cb, root.get(col.name), col.search.value));
try {
ands.add(like(cb, root.get(col.name), col.search.value));
} catch (IllegalArgumentException ex) {
// columna no mapeada o relación: la ignoramos
}
}
}
// Búsqueda global
if (dt.search != null && dt.search.value != null && !dt.search.value.isEmpty() && !searchableFields.isEmpty()) {
if (dt.search != null && dt.search.value != null && !dt.search.value.isEmpty()
&& !searchableFields.isEmpty()) {
String term = "%" + dt.search.value.trim().toLowerCase() + "%";
List<Predicate> ors = new ArrayList<>();
for (String f : searchableFields) {
ors.add(cb.like(cb.lower(root.get(f).as(String.class)), term));
try {
ors.add(cb.like(cb.lower(root.get(f).as(String.class)), term));
} catch (IllegalArgumentException ex) {
// campo no simple: lo saltamos
}
}
ands.add(cb.or(ors.toArray(new Predicate[0])));
if (!ors.isEmpty())
ands.add(cb.or(ors.toArray(new Predicate[0])));
}
return ands.isEmpty() ? cb.conjunction() : cb.and(ands.toArray(new Predicate[0]));