Removed obsolete it_db, it_db_table, it_db_record

1 files changed, 0 insertions, 520 deletions

diff --git a/it_db_record.class b/it_db_record.class
deleted file mode 100644
index a716117..0000000
--- a/it_db_record.class
+++ /dev/null
@@ -1,520 +0,0 @@
-<?php
-/*
-**	$Id$
-**
-**	it_db_record.class - A database record based on it_db_table and it_db
-**
-**	ITools - the Internet Tools Library
-**
-**	Copyright (C) 1995-2003 by the ITools Authors.
-**	This program is free software; you can redistribute it and/or
-**	modify it under the terms of either the GNU General Public License
-**	or the GNU Lesser General Public License, as published by the Free
-**	Software Foundation. See http://www.gnu.org/licenses/ for details.
-*/
-
-/**
- * Functions to handle MySQL records
- * @see it_db, it_db_table
- */
-class it_db_record
-{
-	var $table;		/* Table object */
-	var $handle;		/* SQL handle for select() / fetch_next() */
-	var $keyfieldname;	/* Name of primary key field */
-	var $key;		/* Key of loaded record or empty if no record is loaded */
-	var $data = array();	/* Data fields */
-
-
-/**
- * Initialize internal data (table object and name of key field)
- * @param $table Underlying table object (class it_db_table)
- * @param $keyfieldname Optional name of primary key field, defaults to 'ID'
- */
-function it_db_record(&$table, $keyfieldname='ID')
-{
-	$this->table = &$table;
-	$this->keyfieldname = $keyfieldname;
-}
-
-
-/**
- * Change active key field
- * @param $keyfieldname Optional name of primary key field, defaults to 'ID'
- */
-function set_key_field($keyfieldname='ID')
-{
-	$this->keyfieldname = $keyfieldname;
-	$this->key = isset($this->data[$keyfieldname]) ? $this->data[$keyfieldname] : '';
-}
-
-
-/**
- * Select a set of records of this table according to an array of selection
- * and sorting criteria.
- * Use fetch_next() to iterate through the result set<br>
- * Example:<br>
- * $record->select(array('Type' => 'bar', 'Date >=' => '1999-01-01',
- *    '-Date <' => 'NOW()', 'User NI' => 'chris'), 'ORDER BY Date');
- *
- * @param $params optional array of fieldname => value tupels.
- * These are ANDed to form a WHERE clause.
- * fieldname can contain an operator (separated by space), the
- * default operator is '='. The special operator 'NI' specifies
- * that the argument must be contained in a comma-separated list.
- *
- * @param $sql Optional SQL addendum added after $params (ORDER BY etc.)
- * @param $fields Optional field list to select (defaults to '*')
- * @return Number of rows that matched this query
- * @see it_db_record::fetch_next, it_db_table::construct_sql_clause
- *
- */
-function select($params='', $sql='', $fields='*')
-{
-	$this->handle = $this->table->safe_sql_select($this->table->construct_sql_clause($params, $sql), $fields);
-	return $this->table->db->num_rows($this->handle);
-}
-
-
-/**
- * Post-process data after reading a record.
- * This is a stub-function that can be overloaded.
- */
-function _read_post_process()
-{
-}
-
-
-/**
- * Pre-process data before writing a record.
- * This is a stub-function that can be overloaded.
- * @param $tags Reference to update/create tags, can be modified as needed
- */
-function _write_pre_process(&$tags)
-{
-}
-
-
-/**
- * Fetch the next record of a select() query
- * @return true if a record was successfully fetched, false otherwise
- * @see it_db_record::select
- */
-function fetch_next()
-{
-	return $this->fetch($this->handle);
-}
-
-
-/**
- * Fetch the next record from an SQL result into this object.
- * If no more records are pending, clear the object's data.
- * @param $sqlresult Result of table::sql_select() or similar
- * @return 1 if a record was successfully fetched, 0 otherwise
- */
-function fetch(&$sqlresult)
-{
-	$result = 0;
-
-	if ($this->data = $this->table->db->fetch_assoc($sqlresult))
-	{
-		$this->key = $this->data[$this->keyfieldname];
-		$result = 1;
-	}
-	else
-	{
-		$this->key = "";	/* "No record is loaded" */
-		$this->data = array();	/* Clear local record data */
-	}
-
-	$this->_read_post_process();
-
-	return  $result;
-}
-
-
-/**
- * Read a record from table
- * @param $key key field value of the desired row
- * @return 1 on success, 0 otherwise
- */
-function read($key)
-{
-	$result = 0;
-
-	if ($key != "")
-	{
-		$result = $this->fetch($this->table->safe_sql_select("WHERE $this->keyfieldname='" . mysql_real_escape_string($key) . "'"));
-	}
-	else
-	{
-		$this->key = "";	/* "No record is loaded" */
-		$this->data = array();	/* Clear local record data */
-	}
-
-	$this->_read_post_process();
-
-	return $result;
-}
-
-
-/**
- * Create a new record in the table
- * @see it_db_record::record_create, it_db_record::safe_create
- * @param $tags array of Fieldname/Value pairs
- * @param $replace use REPLACE (1) instead of INSERT (otherwise)
- * @return MySQL result (0 means failure)
- */
-function create($tags, $replace=0)
-{
-	/* Pre-processing, $tags is passed by reference and may be modified here */
-	$this->_write_pre_process($tags);
-
-	$sql = $replace ? "REPLACE" : "INSERT";
-	$sql .= " INTO " . $this->table->name . " (";
-	$sql2 = '';
-
-	unset($this->data);
-	for ($sep=""; $ti = each($tags); $sep=",")
-	{
-		/* If the field name starts with '-', the value is taken as raw, no escaping
-		   is done and no quotes are put around it. */
-		if (substr($ti[0], 0, 1) == '-')
-		{
-			$ti[0] = substr($ti[0], 1);	/* Strip that '-' sign */
-			$val = $ti[1];
-		}
-		else
-			$val = isset($ti[1]) ? "'".mysql_real_escape_string($ti[1])."'" : 'NULL';
-
-		$this->data[$ti[0]] = $ti[1];	/* Store data for later use */
-
-		$sql .= $sep . $ti[0];
-		$sql2 .= "$sep$val";
-	}
-
-	$sql .= ") VALUES ($sql2)";
-
-	if ($result = $this->table->db->sql_query($sql))
-	{
-		/* If the key element was not given, it means it's an AUTO_INCREMENT thingy. */
-		if (($this->key = $this->data[$this->keyfieldname]) == "")
-		{
-			$result = $this->table->db->safe_sql_query("SELECT LAST_INSERT_ID()");
-			$this->key = mysql_result($result, 0, 0);
-		}
-
-		/* We need all fields from record, not only those we initialised */
-		$this->read($this->key);
-	}
-
-	return $result;
-}
-
-
-/**
- * Safe version of create (doesn't return in case of failure)
- * @see it_db_record::create, it_db_record::record_create
- * @param $tags array of Fieldname/Value pairs
- * @param $replace use REPLACE (1) instead of INSERT (otherwise)
- * @return MySQL result (0 means failure)
- */
-function safe_create($tags, $replace=0)
-{
-	if ($result = $this->create($tags, $replace))
-		return $result;
-	else
-		fail("it_db_record::safe_create() failed: " . $this->table->db->error());
-}
-
-
-/**
- * Update a record in the table
- * @param $tags array of Fieldname/Value pairs
- * @return MySQL result (0 means failure)
- */
-function update($tags)
-{
-	/* Pre-processing, $tags is passed by reference and may be modified here */
-	$this->_write_pre_process($tags);
-
-	if ($this->key == "")
-		it::fatal("it_db_record::update(): can't update undefined record");
-
-	/* If we have nothing to do, return instead of performing an invalid SQL query */
-	if (!count($tags))
-		return true;
-
-	$sql = "UPDATE " . $this->table->name . " SET ";
-
-	for ($sep="", $raw=0; $ti = each($tags); $sep=",")
-	{
-		/* If the field name starts with '-', the value is taken as raw, no escaping
-		   is done and no quotes are put around it. */
-		if (substr($ti[0], 0, 1) == '-')
-		{
-			$ti[0] = substr($ti[0], 1);	/* Strip that '-' sign */
-			$val = $ti[1];
-			$raw++;
-		}
-		else
-			$val = "'".mysql_real_escape_string($ti[1])."'";
-
-		$sql .= $sep.$ti[0].'='.$val;
-
-		if ($ti[0] == $this->key)
-		{
-			if ($this->data[$this->keyfieldname] != $ti[0])
-				it::fatal("$sql: trying to change key from $this->key.");
-		}
-
-		$this->data[$ti[0]] = $ti[1];
-	}
-
-	$sql .= " WHERE " . $this->keyfieldname . "='" . mysql_real_escape_string($this->key) . "'";
-
-	/* debug("it_db_record::update(): $sql"); */
-	$ret = $this->table->db->safe_sql_query($sql);
-
-	/* Only re-read record if necessary (for performance), but always do post-processing. */
-	if ($raw)
-		$this->read($this->key);
-	else
-		$this->_read_post_process();
-
-	return $ret;
-}
-
-
-/**
- * Delete the current record from the database
- * @param $key keyfield value of the record to be deleted. If this is missing, the current record is deleted. 
- * @return MySQL result (0 means failure)
- */
-function delete($key="")
-{
-	if (!$key) $key = $this->key;
-
-	if (($this->table->name == "") || ($this->keyfieldname == "") || ($key == ""))
-		it::fatal("it_db_record::delete(): no record\n");
-
-	$sql = "DELETE FROM " . $this->table->name . " WHERE ". $this->keyfieldname . "='" . mysql_real_escape_string($key) . "'";
-	if ($result = $this->table->db->sql_query($sql))
-	{
-		$this->key = "";
-		$this->data = array();
-	}
-	return $result;
-}
-
-
-/**
- * Return a field of a record.
- * @param $field field name
- * @return field value. If the field does not exists, issue an
- * error message and terminate program execution.
- */
-function safe_get_field($field)
-{
-	if ($field)
-	{
-		if (isset($this->data[$field]))
-			return $this->data[$field];
-		else it::fatal("it_db_record::safe_get_field(): field \"$field\" not present in record.");
-	}
-	else it::fatal("it_db_record::safe_get_field(): empty field name");
-}
-
-
-/**
- * Output all fields of a record in (ugly) html format
- */
-function dump_html()
-{
-	echo "<br>Dump of table " . $this->table->name . ", record " . $this->keyfieldname . " = \"" . $this->key . "\":<br><pre>\n";
-	reset($this->data); next($this->data);
-	while(list($key, $value) = each($this->data))
-	{
-		if ($key > 0) continue;	/* $$$ ugly */
-		echo $key . " = \"" . htmlspecialchars($value) . "\"\n";
-	}
-	echo "</pre><br>\n";
-}
-
-
-/**
- * Edit a record of a table. Create a new record if necessary.<br>
- * Example:<br>
- * $record->edit($id, array('ID' => $id));
- *
- * @param $key key value of the row to edit
- * @param $fixfields Array of fields not editable (with fixed values)
- * @return 1=changed, 2=created, -1=deleted, 0=nothing changed
- */
-function edit($key, $fixfields = array())
-{
-	$returnresult = 0;
-	$numfields = $this->table->num_fields();
-
-	if ($_REQUEST['_COMMAND'])
-	{
-		/*
-		**  If the key field is changed, $key will carry a wrong value, so we
-		**  take the correct one from $_RECORD_KEY_VALUE
-		*/
-		$key = $_REQUEST['_RECORD_KEY_VALUE'];
-
-		switch($_REQUEST['_COMMAND'])
-		{
-		case "EDIT":
-			$this->read($key);
-			$newdata = array();
-			$changes = 0;
-			for ($i=0; $i < $numfields; ++$i)
-			{
-				$fieldname = $this->table->fieldnames[$i];
-
-				/* Assumes field order is fixed */
-				if (isset($fixfields[$fieldname]))
-					$newvalue = $fixfields[$fieldname];
-				else if (is_array($_REQUEST["_RECORD_$fieldname"]))
-					$newvalue = join(',', $_REQUEST["_RECORD_$fieldname"]);
-				else
-					$newvalue = $_REQUEST["_RECORD_$fieldname"];
-	
-				if ($this->data[$fieldname] != $newvalue)
-				{
-					$newdata[$fieldname] = $newvalue;
-					$changes = 1;
-				}
-			}
-
-			if ($changes)
-			{
-				if ($this->update($newdata))
-				{
-					echo "<b>Änderung erfolgreich durchgef&uuml;hrt.</b><br>\n";
-					$returnresult = 1;
-				}
-				else
-					fail("Update failed.");
-			}
-			else echo "<b>Keine Änderungen.</b><br>\n";
-			break;
-
-		case "CREATE":
-			$newdata = array();
-			for ($i=0; $i < $numfields; ++$i)
-			{
-				$fieldname = $this->table->fieldnames[$i];
-				
-				if (isset($fixfields[$fieldname]))
-					$newvalue = $fixfields[$fieldname];
-				else if (is_array($_REQUEST["_RECORD_$fieldname"]))
-					$newvalue = join(',', $_REQUEST["_RECORD_$fieldname"]);
-				else
-					$newvalue = $_REQUEST["_RECORD_$fieldname"];
-
-				$newdata[$fieldname] = $newvalue;
-			}
-
-			if ($this->create($newdata))
-			{
-				$key = $this->key;
-				echo "<b>Datensatz erzeugt.</b><br>\n";
-				$returnresult = 2;
-			}
-			else
-				fail("Datensatz konnte nicht erzeugt werden.");
-			break;
-
-		case "DELETE":
-			if ($this->delete($key))
-			{
-				echo "<b>Datensatz gelöscht.</b><br>\n";
-				$returnresult = -1;
-			}
-			else
-				fail("Datensatz konnte nicht gelöscht werden.");
-			break;
-
-		default:
-			fail("Unknown _COMMAND \"{$_REQUEST['_COMMAND']}\"");
-			/* NOT REACHED */
-		}
-	}
-
-	if ($key != "")
-	{
-		$this->read($key);
-		$cmd = "EDIT";
-		$buttontext = "Änderungen übernehmen";
-	}
-	else
-	{
-		$cmd = "CREATE";
-		$buttontext = "Datensatz erzeugen";
-	}
-
-	echo "<form action=\"\" method=\"post\"><input type=\"hidden\" name=\"_COMMAND\" value=\"$cmd\"><input type=\"hidden\" name=\"_RECORD_KEY_NAME\" value=\"$this->keyfieldname\"><input type=\"hidden\" name=\"_RECORD_KEY_VALUE\" value=\"$this->key\">\n";
-	echo "<table border=1 cellspacing=0 cellpadding=4>\n";
-	for ($i=0; $i < $numfields; ++$i)
-	{
-		$fieldname = $this->table->fieldnames[$i];
-
-		/* Do not display fix fields */
-		if (isset($fixfields[$fieldname]))
-			continue;
-
-		$fieldflags = $this->table->fieldflags[$i];
-		$fieldlen  = $this->table->fieldlengths[$i];
-		$size = min($fieldlen, 65);
-
-		if ($fieldname == $this->keyfieldname)
-			echo "<tr><th align=right>$fieldname</th>";
-		else
-			echo "<tr><td align=right>$fieldname</td>";
-
-		if (strstr($fieldflags, "blob"))
-		{
-			if (strlen($this->data["$fieldname"]) < 256)
-				echo "<td><textarea name=\"_RECORD_$fieldname\" rows=4 cols=56 wrap=\"physical\">" . htmlspecialchars($this->data["$fieldname"]) . "</textarea></td></tr>\n";
-			else
-				echo "<td><textarea name=\"_RECORD_$fieldname\" rows=10 cols=75 wrap=\"physical\">" . htmlspecialchars($this->data["$fieldname"]) . "</textarea></td></tr>\n";
-		}
-		else if (strstr($fieldflags, "enum"))
-		{
-			$result = $this->table->db->safe_sql_query("SHOW columns FROM ". $this->table->name . " LIKE '$fieldname'");
-			$options = split("'", mysql_result($result, 0, 1));
-
-			$vals = explode(',', $this->data[$fieldname]);
-
-			for ($j = 0; $j < count($vals); $j++)
-				$values[$vals[$j]] = 1;
-
-			if (strstr($options[0], 'set'))
-				$attr = 'multiple';
-			else
-				$attr = 'set="1"';
-
-			echo "<td><select name=\"_RECORD_${fieldname}[]\" $attr>";
-			for ($j=1; $options[$j]; $j+=2)
-			{
-				$selected = $values[$options[$j]] ? " selected" : "";
-				echo "<option$selected>", $options[$j], "</option>";
-			}
-			echo "</select></td></tr>\n";
-		}
-		else
-			echo "<td><input type=\"text\" size=$size name=\"_RECORD_$fieldname\" maxlength=\"$fieldlen\" value=\"" . htmlspecialchars($this->data["$fieldname"]) . "\"></td></tr>\n";
-	}
-	echo "</table><br><input type=\"submit\" value=\"$buttontext\"></form>\n";
-
-	if ($this->key != "")
-		echo "<form action=\"\" method=\"post\"><input type=\"hidden\" name=\"_COMMAND\" value=\"DELETE\"><input type=\"hidden\" name=\"_RECORD_KEY_NAME\" value=\"$this->keyfieldname\"><input type=\"hidden\" name=\"_RECORD_KEY_VALUE\" value=\"$this->key\"><input type=\"submit\" value=\"Datensatz löschen\"></form>\n";
-
-	return $returnresult;
-}
-
-} /* End class it_db_record */
-?>