Обсуждение: template0

Thanks Guys!

Let me be a little for specific. I am trying to make a php/pg/apache app that when run checks for its database and if not found creates it. To do this I first connect to pg first under template1 and check for my database in pg_database. If found I close and connect to that database. If not found I create it while connected to template1 and then close and connect under my database. Here is the code. Maybe I need to post this to the php site. But when I look at using a database I need to connect to it with a user and dbname. I have been using template1 successfully except any new databases after the first one inherit the tables from the 1^st database and I though the way to get around this was to use template0? Am I out in left field about all this?

Thanks

Marcel

<?php

$pgtemplate="user=postgre dbname=template0";

$pguser="user=postgre dbname=recipe";

$db="recipe";

            $link=pg_connect($pgtemplate) or die ("Couldn't connect to template try again.<br>".pg_last_error());

            $query = "SELECT * FROM pg_database";

            $result = pg_query ($query) or die ("Couldn't get the database names".pg_last_error());

            // If it worked get the database names.

            $max_array=pg_numrows($result);

            $got_database = false;                          

            for ($i=0;$i<$max_array;$i++) {

                        $database= pg_fetch_array ($result) or print ("Can't get the array of databases<br>");         

                        //print (" the 1st database is {$database['datname']}.<br>");

                        if ($database['datname'] == $db) {

                                    $got_database = true;

                        }          

            }

            if ($got_database == false) {

                        // Need to build my database

                        print "No database<br>";

                        pg_query ("CREATE DATABASE $db") or die ("Could not create database".pg_last_error());

                        // Created new database. disconnect from the template1 and reconnect to the new database.

                        pg_close ($link);

                        $link=pg_connect($pguser) or die ("Couldn't connect to the new database<br>".pg_last_error());

                        $query = "CREATE TABLE cats (

                           cat character varying(25) NOT NULL,

                           jpg character varying(12) NOT NULL)

                        ";

                        pg_query($query) or

                        die ("Query Failed.<br>".pg_last_error());

                        $query = "CREATE TABLE recipe (

                           noo SERIAL,

                           nam character varying(50) NOT NULL,

                           cat character varying(25) NOT NULL,

                           ing text NOT NULL,

                           ins text NOT NULL,

                           PRIMARY KEY (noo)

                        )";

                        pg_query($query) or

                        die ("Query Failed.<br>".pg_last_error());