98 lines
3.3 KiB
Swift
98 lines
3.3 KiB
Swift
//
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// SQLite.swift
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// https://github.com/stephencelis/SQLite.swift
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// Copyright © 2014-2015 Stephen Celis.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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extension Module {
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public static func FTS5(_ config: FTS5Config) -> Module {
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return Module(name: "fts5", arguments: config.arguments())
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}
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}
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/// Configuration for the [FTS5](https://www.sqlite.org/fts5.html) extension.
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///
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/// **Note:** this is currently only applicable when using SQLite.swift together with a FTS5-enabled version
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/// of SQLite.
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open class FTS5Config : FTSConfig {
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public enum Detail : CustomStringConvertible {
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/// store rowid, column number, term offset
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case full
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/// store rowid, column number
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case column
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/// store rowid
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case none
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public var description: String {
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switch self {
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case .full: return "full"
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case .column: return "column"
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case .none: return "none"
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}
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}
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}
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var detail: Detail?
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var contentRowId: Expressible?
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var columnSize: Int?
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override public init() {
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}
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/// [External Content Tables](https://www.sqlite.org/fts5.html#section_4_4_2)
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open func contentRowId(_ column: Expressible) -> Self {
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self.contentRowId = column
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return self
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}
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/// [The Columnsize Option](https://www.sqlite.org/fts5.html#section_4_5)
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open func columnSize(_ size: Int) -> Self {
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self.columnSize = size
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return self
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}
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/// [The Detail Option](https://www.sqlite.org/fts5.html#section_4_6)
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open func detail(_ detail: Detail) -> Self {
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self.detail = detail
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return self
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}
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override func options() -> Options {
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var options = super.options()
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options.append("content_rowid", value: contentRowId)
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if let columnSize = columnSize {
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options.append("columnsize", value: Expression<Int>(value: columnSize))
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}
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options.append("detail", value: detail)
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return options
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}
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override func formatColumnDefinitions() -> [Expressible] {
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return columnDefinitions.map { definition in
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if definition.options.contains(.unindexed) {
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return " ".join([definition.0, Expression<Void>(literal: "UNINDEXED")])
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} else {
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return definition.0
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}
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}
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}
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}
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