Initial commit of geoip module

README.md

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+GeoIP Module
+============
+
+Maintainer Contact
+------------------
+Sean Harvey (Nickname: sharvey, halkyon)
+<sean (at) silverstripe (dot) com>

_config.php

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+<?php

code/CountryDropdownField.php

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+<?php
+
+/**
+ * A simple extension to {@link DropdownField}, pre-configured to list countries.
+ * It will default to the country of the current visitor or use the default
+ * country code provided using {@link Geoip::set_default_country_code()}.
+ *
+ * @package forms
+ * @subpackage fields-relational
+ */
+class CountryDropdownField extends DropdownField {
+
+	protected $defaultToVisitorCountry = true;
+
+	function __construct($name, $title = null, $source = null, $value = "", $form=null) {
+		if(!is_array($source)) $source = Geoip::getCountryDropDown();
+		if(!$value) $value = Geoip::visitor_country();
+
+		parent::__construct($name, ($title===null) ? $name : $title, $source, $value, $form);
+	}
+
+	function defaultToVisitorCountry($val) {
+		$this->defaultToVisitorCountry = $val;
+	}
+
+	function Field() {
+		$source = $this->getSource();
+
+		if($this->defaultToVisitorCountry && !$this->value || !isset($source[$this->value])) {
+			$this->value = ($vc = Geoip::visitor_country()) ? $vc : Geoip::get_default_country_code();
+		}
+
+		return parent::Field();
+	}
+}