A repository of my frequently used methods and macros in swift

SwiftUtilities.swift

//
//  SwiftUtilities.swift
//
//  Created by Axel Rivera on 12/21/14.
//  Copyright (c) 2014 Axel Rivera. All rights reserved.
//

import Foundation

// MARK: - Macros

func dLog(message: String, filename: String = __FILE__, function: String = __FUNCTION__, line: Int = __LINE__) {
    #if DEBUG
        println("[\(filename.lastPathComponent):\(line)] \(function) - \(message)")
    #endif
}

func pathInDocumentsDirectory(fileName: String) -> String! {
    var documentStr: String!

    let dirArray = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)
    if let document = dirArray {
        if let str = document[0] as? String {
            documentStr = str.stringByAppendingPathComponent(fileName)
        }
    }

    return documentStr
}

func deletePathInDocumentDirectory(fileName: String) -> Bool {
    let filePath = pathInDocumentsDirectory(fileName)
    return NSFileManager.defaultManager().removeItemAtPath(filePath, error: nil)
}

func pathInTemporaryDirectory(fileName: String) -> String! {
    var tmpStr: String!

    if let tmpDir = NSTemporaryDirectory() {
        tmpStr = tmpDir.stringByAppendingPathComponent(fileName)
    }

    return tmpStr
}

func deletePathInTemporaryDirectory(fileName: String) -> Bool {
    let filePath = pathInTemporaryDirectory(fileName)
    return NSFileManager.defaultManager().removeItemAtPath(filePath, error: nil)
}

// MARK: - UIColor Extension

extension UIColor {

    convenience init(hex: NSInteger) {
        self.init(hex: hex, alpha: 1.0)
    }

    convenience init (hex: NSInteger, alpha: CGFloat) {
        let red = CGFloat((hex & 0xFF0000) >> 16) / 255.0
        let green = CGFloat((hex & 0xFF00) >> 8) / 255.0
        let blue = CGFloat((hex & 0xFF)) / 255.0
        self.init(red: red, green: green, blue: blue, alpha: alpha)
    }
    
}

// MARK: - NSDecimalNumber Extension

extension NSDecimalNumber {

    struct NumberFormatter {

        static var currency: NSNumberFormatter {
            let formatter = NSNumberFormatter()
            formatter.numberStyle = .CurrencyStyle
            formatter.positiveFormat = "¤#,##0.00"
            formatter.negativeFormat = "-¤#,##0.00"
            return formatter
        }
        
    }

    func currencyString() -> String! {
        return NumberFormatter.currency.stringFromNumber(self)
    }

    func isEqualToDecimalNumber(number: NSDecimalNumber) -> Bool {
        return self.isEqualToNumber(number)
    }

    func isGreaterThanDecimalNumber(number: NSDecimalNumber) -> Bool {
        return self.compare(number) == NSComparisonResult.OrderedDescending
    }

    func isLessThanDecimalNumber(number: NSDecimalNumber) -> Bool {
        return self.compare(number) == NSComparisonResult.OrderedAscending
    }

    func isGreaterThanOrEqualToDecimalNumber(number: NSDecimalNumber) -> Bool {
        return self.isGreaterThanDecimalNumber(number) || self.isEqualToDecimalNumber(number)
    }

    func isLessThanOrEqualToDecimalNumber(number: NSDecimalNumber) -> Bool {
        return self.isLessThanDecimalNumber(number) || self.isEqualToDecimalNumber(number)
    }

    func isEqualToZero() -> Bool {
        return self.isEqualToDecimalNumber(NSDecimalNumber.zero())
    }
    
}

// MARK: - Table Data Structures

typealias TableContent = [String: Any]

struct TableSection {
    var title: String?
    var footer: String?
    var rows = [TableRow]()

    init(title: String?, rows: [TableRow]) {
        self.title = title
        self.rows = rows
    }
}

struct TableRow {
    var content = TableContent()
    var height: CGFloat?
    var allowNavigation = false

    init(content: TableContent) {
        self.content = content
    }

    init(content: TableContent, allowNavigation: Bool) {
        self.content = content
        self.allowNavigation = allowNavigation
    }
}