Module: CouchbaseOrm::QueryHelper::ClassMethods

Defined in:
lib/couchbase-orm/utilities/query_helper.rb

Instance Method Summary collapse

Instance Method Details

#bind(value, params) ⇒ Object 



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# File 'lib/couchbase-orm/utilities/query_helper.rb', line 19

def bind(value, params)
    if value.nil?
        nil
    else
        params << serialize_for_binding(value)
        "$#{params.length}"
    end
end

#build_match(key, value, params: nil) ⇒ Object 



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# File 'lib/couchbase-orm/utilities/query_helper.rb', line 34

def build_match(key, value, params: nil)
    use_is_null = self.properties_always_exists_in_document
    key = "meta().id" if key.to_s == "id"
    case
    when value.nil? && use_is_null
        "#{key} IS NULL"
    when value.nil? && !use_is_null
        "#{key} IS NOT VALUED"
    when value.is_a?(Hash) && attribute_types[key.to_s].is_a?(CouchbaseOrm::Types::Array)
        "any #{key.to_s.singularize} in #{key} satisfies (#{build_match_hash("#{key.to_s.singularize}", value, params: params)}) end"
    when value.is_a?(Hash) && !attribute_types[key.to_s].is_a?(CouchbaseOrm::Types::Array)
        build_match_hash(key, value, params: params)
    when value.is_a?(Array) && value.include?(nil)
        "(#{build_match(key, nil, params: params)} OR #{build_match(key, value.compact, params: params)})"
    when value.is_a?(Array)
        "#{key} IN #{resolve_value(value, params)}"
    when value.is_a?(Range)
        build_match_range(key, value, params: params)
    else
        "#{key} = #{resolve_value(value, params)}"
    end
end

#build_match_hash(key, value, params: nil) ⇒ Object 



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# File 'lib/couchbase-orm/utilities/query_helper.rb', line 57

def build_match_hash(key, value, params: nil)
    matches = []
    value.each do |k, v|
        case k
        when :_gt
            matches << "#{key} > #{resolve_value(v, params)}"
        when :_gte
            matches << "#{key} >= #{resolve_value(v, params)}"
        when :_lt
            matches << "#{key} < #{resolve_value(v, params)}"
        when :_lte
            matches << "#{key} <= #{resolve_value(v, params)}"
        when :_ne
            matches << "#{key} != #{resolve_value(v, params)}"

        # TODO v2
        # when :_in
        #     matches << "#{key} IN #{quote(v)}"
        # when :_nin
        #     matches << "#{key} NOT IN #{quote(v)}"
        # when :_like
        #     matches << "#{key} LIKE #{quote(v)}"
        # when :_nlike
        #     matches << "#{key} NOT LIKE #{quote(v)}"
        # when :_between
        #     matches << "#{key} BETWEEN #{quote(v[0])} AND #{quote(v[1])}"
        # when :_nbetween
        #     matches << "#{key} NOT BETWEEN #{quote(v[0])} AND #{quote(v[1])}"
        # when :_exists
        #     matches << "#{key} IS #{v ? "" : "NOT "}VALUED"
        # when :_regex
        #     matches << "#{key} REGEXP #{quote(v)}"
        # when :_nregex
        #     matches << "#{key} NOT REGEXP #{quote(v)}"
        # when :_match
        #     matches << "#{key} MATCH #{quote(v)}"
        # when :_nmatch
        #     matches << "#{key} NOT MATCH #{quote(v)}"

        # TODO v3
        # when :_any
        #     matches << "#{key} ANY #{quote(v)}"
        # when :_nany
        #     matches << "#{key} NOT ANY #{quote(v)}"
        # when :_all
        #     matches << "#{key} ALL #{quote(v)}"
        # when :_nall
        #     matches << "#{key} NOT ALL #{quote(v)}"
        # when :_within
        #     matches << "#{key} WITHIN #{quote(v)}"
        #when :_nwithin
        #    matches << "#{key} NOT WITHIN #{quote(v)}"
        else
            matches << build_match("#{key}.#{k}", v, params: params)
        end
    end

    matches.join(" AND ")
end

#build_match_range(key, value, params: nil) ⇒ Object 



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# File 'lib/couchbase-orm/utilities/query_helper.rb', line 117

def build_match_range(key, value, params: nil)
    matches = []
    matches << "#{key} >= #{resolve_value(value.begin, params)}"
    if value.exclude_end?
        matches << "#{key} < #{resolve_value(value.end, params)}"
    else
        matches << "#{key} <= #{resolve_value(value.end, params)}"
    end
    matches.join(" AND ")
end

#build_not_match(key, value, params: nil) ⇒ Object 



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# File 'lib/couchbase-orm/utilities/query_helper.rb', line 129

def build_not_match(key, value, params: nil)
    use_is_null = self.properties_always_exists_in_document
    key = "meta().id" if key.to_s == "id"
    case
    when value.nil? && use_is_null
        "#{key} IS NOT NULL"
    when value.nil? && !use_is_null
        "#{key} IS VALUED"
    when value.is_a?(Array) && value.include?(nil)
        "(#{build_not_match(key, nil, params: params)} AND #{build_not_match(key, value.compact, params: params)})"
    when value.is_a?(Array)
        "#{key} NOT IN #{resolve_value(value, params)}"
    else
        "#{key} != #{resolve_value(value, params)}"
    end
end

#quote(value) ⇒ Object 



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# File 'lib/couchbase-orm/utilities/query_helper.rb', line 159

def quote(value)
    if [String, Date].any? { |clazz| value.is_a?(clazz) }
        "'#{N1ql.sanitize(value)}'"
    elsif [DateTime, Time].any? { |clazz| value.is_a?(clazz) }
        formatedDate = value&.iso8601(@precision || 0)
        "'#{N1ql.sanitize(formatedDate)}'"
    elsif value.is_a? Array
        "[#{value.map{|v|quote(v)}.join(', ')}]"
    elsif value.nil?
        nil
    else
        N1ql.sanitize(value).to_s
    end
end

#resolve_value(value, params) ⇒ Object

Renders a value either as a positional parameter (when params is provided) or as an inline quoted literal (when it is nil).



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# File 'lib/couchbase-orm/utilities/query_helper.rb', line 30

def resolve_value(value, params)
    params ? bind(value, params) : quote(value)
end

#serialize_for_binding(value) ⇒ Object 



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# File 'lib/couchbase-orm/utilities/query_helper.rb', line 7

def serialize_for_binding(value)
    if value.is_a?(Array)
        value.map { |v| serialize_for_binding(v) }
    elsif [DateTime, Time].any? { |clazz| value.is_a?(clazz) } || (value.respond_to?(:acts_like?) && value.acts_like?(:time))
        value.iso8601(@precision || 0)
    elsif value.is_a?(Date)
        value.to_s
    else
        value
    end
end

#serialize_value(key, value_before_type_cast) ⇒ Object 



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# File 'lib/couchbase-orm/utilities/query_helper.rb', line 146

def serialize_value(key, value_before_type_cast)
    value =
        if value_before_type_cast.is_a?(Array)
            value_before_type_cast.map do |v|
                attribute_types[key.to_s].serialize(attribute_types[key.to_s].cast(v))
            end
        else
            attribute_types[key.to_s].serialize(attribute_types[key.to_s].cast(value_before_type_cast))
        end
    CouchbaseOrm.logger.debug { "convert_values: #{key} => #{value_before_type_cast.inspect} => #{value.inspect} #{value.class} #{attribute_types[key.to_s]}" }
    value
end