62 lines
1.5 KiB
Ruby
62 lines
1.5 KiB
Ruby
# frozen_string_literal: true
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class PostQuery
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extend Memoist
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attr_reader :search, :parser, :builder, :ast
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delegate :tag?, :metatag?, :wildcard?, :metatags, :wildcards, :tag_names, :metatags, to: :ast
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def initialize(search, current_user: User.anonymous, tag_limit: nil, safe_mode: false, hide_deleted_posts: false)
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@search = search
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@parser = Parser.new(search)
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@builder = PostQueryBuilder.new(search, current_user, tag_limit: tag_limit, safe_mode: safe_mode, hide_deleted_posts: hide_deleted_posts)
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@ast = parser.parse.simplify
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end
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def fast_count(...)
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builder.normalized_query.fast_count(...)
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end
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def tags
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Tag.where(name: tag_names)
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end
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# True if this search would return all posts (normally because the search is the empty string).
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def is_empty_search?
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ast.all?
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end
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# True if this search would return nothing (normally because there was a syntax error).
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def is_null_search?
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ast.none?
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end
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def is_single_tag?
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ast.tag?
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end
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def select_metatags(*names)
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metatags.select { |metatag| metatag.name.in?(names.map(&:to_s).map(&:downcase)) }
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end
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def has_metatag?(*names)
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select_metatags(*names).present?
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end
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def find_metatag(*names)
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select_metatags(*names).first&.value
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end
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# Return a new query AST, with aliased tags replaced with real tags.
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def replace_aliases
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ast.replace_tags(aliases)
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end
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# A hash mapping aliased tag names to real tag names.
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def aliases
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TagAlias.aliases_for(tag_names)
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end
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memoize :tags, :aliases
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end
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