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Community Catalog: filter out Subjects that belong to no Subject Sets #75

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Aug 13, 2024
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Community Catalog: filter out Subjects that belong to no Subject Sets #75

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22 changes: 14 additions & 8 deletions src/projects.js
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Original file line number Diff line number Diff line change
Expand Up @@ -106,9 +106,7 @@ Output:
async function processOneProject(project) {
try {
let subjects = await fetchAllSubjects(project.id)
if (project.special_rules) {
subjects = refineSubjectsSelection(subjects, project.special_rules)
}
subjects = refineSubjectsSelection(subjects, project.special_rules)
return await writeProjectData(project, subjects)

} catch (err) {
Expand Down Expand Up @@ -164,17 +162,25 @@ async function fetchSubjectsByPage(projectId = '', page = 1, pageSize = 100) {
}
}

/* Applies special rules to the subject selection.
/* Cleans up and applies special rules to the subject selection.
*/
function refineSubjectsSelection(subjects = [], specialRules = {}) {
let selectedSubjects = subjects.slice()

// Filter out Subjects that don't belong to any Subject Sets
// i.e. remove deleted Subjects
selectedSubjects = selectedSubjects.filter(subject => (
subject.links?.subject_sets?.length > 0
))

// Filter out Subjects from specific Subject Sets.
// Useful for removing beta Subjects.
selectedSubjects = selectedSubjects.filter(subject => ( // For each Subject, remove it if...
!subject.links?.subject_sets?.some(sset => ( // ...any of its linked subject sets...
specialRules.exclude_subject_sets.includes(sset) // ...are in the list of ignored/excluded subject sets.
))))
if (specialRules.exclude_subject_sets) {
selectedSubjects = selectedSubjects.filter(subject => ( // For each Subject, remove it if...
!subject.links?.subject_sets?.some(sset => ( // ...any of its linked subject sets...
specialRules.exclude_subject_sets.includes(sset) // ...are in the list of ignored/excluded subject sets.
))))
}

return selectedSubjects
}
Expand Down