51 lines
2.0 KiB
Java
Executable File
51 lines
2.0 KiB
Java
Executable File
package com.plannaplan.repositories;
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import java.util.List;
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import java.util.Optional;
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import com.plannaplan.entities.Groups;
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import org.springframework.data.jpa.repository.JpaRepository;
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import org.springframework.data.jpa.repository.Query;
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import org.springframework.data.repository.query.Param;
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import org.springframework.stereotype.Repository;
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/**
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* GroupRepository.find:
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* Return list of:
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* SELECT * FROM Groups WHERE time = i AND room = j AND capacity = k .
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*
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* Where i, j, k, ?1, ?2, ?3 are equale to variables.
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*
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* GroupRepository.getByCourse:
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* Return list of:
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* SELECT * FROM Groups WHERE course_id = i .
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*
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* Where i, ?1 are equale to variables.
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*/
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@Repository
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public interface GroupRepository extends JpaRepository<Groups, Long> {
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@Query("FROM Groups WHERE time = ?1 AND room = ?2 AND capacity = ?3")
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Optional<Groups> find(@Param("time") int time, @Param("room") String room, @Param("capacity") int capacity);
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@Query("FROM Groups WHERE zajCykId = ?1 AND grNr = ?2")
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Optional<Groups> find(@Param("zajCykId") Integer zaj_cyk_id, @Param("grNr") Integer gr_nr);
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@Query("FROM Groups WHERE course_id = ?1")
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List<Groups> getByCourse(@Param("id") Long id);
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@Query("SELECT COUNT(*) AS assinged_times FROM Assignment WHERE isPastAssignment=false GROUP BY group HAVING group_id=?1")
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Optional<Number> getAssignedAmount(Long groupId);
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/**
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* PLAIN SQL QUERY: SELECT group_id, COUNT(*) assinged_times FROM assignment
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* WHERE is_past_assignment=0 GROUP BY group_id HAVING group_id IN (:ids)")
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*
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* @param groupIds list of groups ids
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* @return list of objects arrays where first object is Groups instance and
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* second is Long that is taken places value
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*/
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@Query("SELECT group, COUNT(*) AS assinged_times FROM Assignment a WHERE a.isPastAssignment=false GROUP BY a.group HAVING group_id IN (:ids)")
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List<Object[]> getAssignedAmounts(@Param("ids") List<Long> groupIds);
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} |