Merge remote-tracking branch 'origin/master'

application/models/system/Variable_model.php

@@ -10,5 +10,92 @@ class Variable_model extends DB_Model
 		parent::__construct();
 		$this->dbTable = 'public.tbl_variable';
 		$this->pk = array('uid', 'name');
+		$this->hasSequence = false;
+
+		$this->load->model('system/Variablenname_model', 'VariablennameModel');
+	}
+
+	/**
+	 * Gets user variables and values for a uid.
+	 * If no value found in tbl_variable, default as defined in variablename_model is retrieved.
+	 * @param $uid
+	 * @param null $names optionally get only certain variables
+	 * @return array
+	 */
+	public function getVariables($uid, $names = null)
+	{
+		if (isEmptyString($uid) || (isset($names) && !is_array($names)))
+			$result = error('wrong parameters passed');
+		else
+		{
+			$vardata = array();
+
+			$qry = "SELECT name, wert FROM public.tbl_variable WHERE uid = ?";
+
+			if (isset($names))
+			{
+				$qry .= " AND name IN ('".implode(',', $names)."')";
+			}
+			$qry .= ";";
+
+			$varresults = $this->execQuery($qry, array($uid));
+
+			if (hasData($varresults))
+			{
+				$varresults = getData($varresults);
+					foreach ($varresults as $varresult)
+					{
+						if (isset($varresult->wert))
+							$vardata[$varresult->name] = $varresult->wert;
+					}
+			}
+
+			$vardefaults = $this->VariablennameModel->getDefaults($names);
+
+			if (hasData($vardefaults))
+			{
+				$vardefaults = getData($vardefaults);
+
+
+				foreach ($vardefaults as $vardefault)
+				{
+					if (!isset($vardata[$vardefault->name]) && isset($vardefault->defaultwert))
+					{
+						$vardata[$vardefault->name] = $vardefault->defaultwert;
+					}
+				}
+			}
+			$result = success($vardata);
+		}
+
+		return $result;
+	}
+
+	/**
+	 * Sets a variable value for a uid. Adds new entry if not present, updates entry otherwise.
+	 * @param $uid
+	 * @param $name
+	 * @param $wert
+	 * @return array
+	 */
+	public function setVariable($uid, $name, $wert)
+	{
+		$result = error('error when setting variable!');
+		if (!isEmptyString($uid) && !isEmptyString($name) && !isEmptyString($wert))
+		{
+			$varres = $this->loadWhere(array('uid' => $uid, 'name' => $name));
+
+			if (isSuccess($varres))
+			{
+				if (hasData($varres))
+				{
+					$result = $this->VariableModel->update(array('uid' => $uid, 'name' => $name), array('wert' => $wert));
+				}
+				else
+					$result = $this->VariableModel->insert(array('uid' => $uid, 'name' => $name, 'wert' => $wert));
+			}
+		}
+
+		return $result;
 	}
 }

application/models/system/Variablenname_model.php

@@ -0,0 +1,78 @@
+<?php
+
+class Variablenname_model extends DB_Model
+{
+	// Contains SQL queries retrieving default variable values if no default is set.
+	private $_dynamic_defaults = array(
+		'semester_aktuell' => 'SELECT studiensemester_kurzbz FROM public.tbl_studiensemester WHERE ende>now() ORDER BY start LIMIT 1',
+		'infocenter_studiensemester' => 'SELECT studiensemester_kurzbz FROM (
+										   SELECT DISTINCT ON (studienjahr_kurzbz) start, studiensemester_kurzbz
+										   FROM public.tbl_studiensemester
+										   ORDER BY studienjahr_kurzbz, start
+                                   		) sem
+										WHERE start > now()
+										LIMIT 1;'
+	);
+
+	/**
+	 * Constructor
+	 */
+	public function __construct()
+	{
+		parent::__construct();
+		$this->dbTable = 'public.tbl_variablenname';
+		$this->pk ='name';
+	}
+
+	/**
+	 * Gets defaults for user variables.
+	 * If no default value present in table, SQL can be executed for retrieving the value.
+	 * @param null $names optionally get only defaults for certain variables
+	 * @return array
+	 */
+	public function getDefaults($names = null)
+	{
+		$defaults = array();
+
+		$qry = "SELECT name, defaultwert FROM public.tbl_variablenname";
+
+		if (isset($names) && is_array($names))
+		{
+			$qry .= " WHERE name IN ('".implode(',', $names)."')";
+		}
+		$qry .= ";";
+
+		$defaultsres = $this->execQuery($qry);
+
+		if (hasData($defaultsres))
+		{
+			$defaults = getData($defaultsres);
+
+			foreach ($defaults as $default)
+			{
+				if (!isset($default->defaultwert))
+				{
+					if (isset($this->_dynamic_defaults[$default->name]))
+					{
+						$dyndefault = $this->execQuery($this->_dynamic_defaults[$default->name]);
+						if (hasData($dyndefault))
+						{
+							$dyndefault = getData($dyndefault);
+
+							if (count($dyndefault) === 1)
+							{
+								foreach ($dyndefault[0] as $value)
+								{
+									$default->defaultwert = $value;
+									break;
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+
+		return success($defaults);
+	}
+}

application/models/system/Webservicelog_model.php

@@ -1,13 +1,14 @@
 <?php
+
 class Webservicelog_model extends DB_Model
 {
-
 	/**
 	 * Constructor
 	 */
 	public function __construct()
 	{
 		parent::__construct();
+
 		$this->dbTable = 'system.tbl_webservicelog';
 		$this->pk = 'webservicelog_id';
 	}