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handle missing course IDs

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This commit is contained in:
Jonathan Barrow 2022-01-02 09:28:16 -05:00
parent 65ade9ec45
commit cb4166560c
1 changed files with 14 additions and 2 deletions
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16
database.go
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@ -281,7 +281,15 @@ func getCourseMetadataByDataID(dataID uint64) *CourseMetadata {
var dataType uint16
var period uint16
_ = cassandraClusterSession.Query(`SELECT owner_pid, size, name, meta_binary, flag, creation_date, update_date, data_type, period FROM pretendo_smm.courses WHERE data_id=?`, dataID).Scan(&ownerPID, &size, &name, &metaBinary, &flag, &createdTime, &updatedTime, &dataType, &period)
err := cassandraClusterSession.Query(`SELECT owner_pid, size, name, meta_binary, flag, creation_date, update_date, data_type, period FROM pretendo_smm.courses WHERE data_id=?`, dataID).Scan(&ownerPID, &size, &name, &metaBinary, &flag, &createdTime, &updatedTime, &dataType, &period)
if err != nil {
if err == gocql.ErrNotFound {
return nil
} else {
log.Fatal(err)
}
}
var stars uint32
var attempts uint32
@ -315,7 +323,11 @@ func getCourseMetadataByDataIDs(dataIDs []uint64) []*CourseMetadata {
courseMetadatas := make([]*CourseMetadata, 0)
for i := 0; i < len(dataIDs); i++ {
courseMetadatas = append(courseMetadatas, getCourseMetadataByDataID(dataIDs[i]))
courseMetadata := getCourseMetadataByDataID(dataIDs[i])
if courseMetadata != nil {
courseMetadatas = append(courseMetadatas, courseMetadata)
}
}
return courseMetadatas