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34 lines
1 KiB
Ruby
Vendored
34 lines
1 KiB
Ruby
Vendored
# frozen_string_literal: true
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module DiscourseWorkflows
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module Pagination
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DEFAULT_LIMIT = 25
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MAX_LIMIT = 100
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Page = Data.define(:records, :total_rows, :load_more_url)
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def self.normalize_limit(limit)
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(limit || DEFAULT_LIMIT).clamp(1, MAX_LIMIT)
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end
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def self.cursor_page(scope:, cursor:, limit:, path:, query: {}, column: :id)
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paginated_scope = cursor ? scope.where("#{column} < ?", cursor) : scope
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records = paginated_scope.limit(limit + 1).to_a
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has_more = records.size > limit
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records = records.first(limit) if has_more
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Page.new(
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records: records,
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total_rows: scope.count,
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load_more_url: build_load_more_url(path, records, limit, query, has_more, column),
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)
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end
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def self.build_load_more_url(path, records, limit, query, has_more, column = :id)
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return if !has_more || records.empty?
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cursor = records.last.public_send(column)
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"#{path}?#{query.merge(cursor: cursor, limit: limit).compact_blank.to_query}"
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end
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end
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end
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