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Original file line number | Diff line number | Diff line change |
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module Types | ||
module MarcRecordsQuery | ||
def with_limit(limit, what, **args, &block) | ||
return send(what, **args, &block) unless limit | ||
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i = 0 | ||
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send(what, **args).each do |record| | ||
yield record | ||
i += 1 | ||
break if i >= limit | ||
end | ||
end | ||
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def each_record(organization = nil, &block) | ||
return to_enum(:each_record, organization) unless block | ||
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l = Array(organization) if organization | ||
l ||= Organization.accessible_by(current_ability) | ||
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l.each do |org| | ||
org.default_stream.uploads.find_each do |upload| | ||
upload.each_marc_record_metadata(&block) | ||
end | ||
end | ||
end | ||
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def filter_records(filter: nil, organization: nil, &block) | ||
return to_enum(:filter_records, filter: filter, organization: organization) unless block | ||
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return each_record(organization, &block) unless filter | ||
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each_record(organization) do |record| | ||
yield record if filter.all? { |f| evaluate_marcspec_filter(record.marc, f) } | ||
end | ||
end | ||
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def evaluate_marcspec_filter(record, filter) | ||
if filter.include?('$') | ||
field, subfield = filter.split('$', 2) | ||
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matching_fields(field).any? do |f| | ||
f[subfield] | ||
end | ||
elsif filter.starts_with? 'LDR' | ||
record.leader | ||
elsif filter.match?(/^\d{3}[a-z]$/) | ||
field = filter[0..2] | ||
subfield = filter[3] | ||
evaluate_marcspec_filter(record, "#{field}$#{subfield}") | ||
else | ||
matching_fields(filter).any? | ||
end | ||
end | ||
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def matching_fields(record, field) | ||
return record.fields(filter) if field.match?(/[a-z0-9A-Z]{3}/) | ||
return to_enum(:matching_fields, record, field) unless block_given? | ||
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field_as_regex = Regexp.new(field) | ||
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record.fields.each do |f| | ||
yield f if f.tag.match?(field_as_regex) | ||
end | ||
end | ||
end | ||
end |
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