Documented import from snitz access database
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Converting a Snitz access database forum to BBpress
This documents how I transferred from a website using Snitz and an access database to a new site with BBress using Mysql.
This briefing assumes knowledge of
• FTP programmes and uploading/downloading files
• A way to access your wordpress database eg myphpadmin
• A way to see your access databaseIntroduction
BBpress has a conversion tool that lets you import data from several other forum packages. However two things are needed for this to work.
1. The data in a MySQL database format
2. A convertor programme that understands the structure of the source (in this case Snitz) forum.If you already have a MySQL verison of Snitz (Snitz supports Access, MS SQL, and MySQL), then you’ll still need to fix the date, and run a specific Snitz converter, but don’t need the upload to MySql in step 2.
Plan
The plan therefore is to
1. Fix date format (it is different between the two forums)
2. Convert the data to sql format
3. Run a snitz converter
4. Run repair to fix the linksExecution
I can only describe how I achieved this, I suspect there are lots of ways, but this one worked.
I had an access database on site x with hosting company a, and needed to transfer to a Mysql database on site y with hosting company b (basically I was taking over running someone else’s website management)
Step 1 fixing the data format
Snitz stores dates in the format yyyymmddhhmmss
BBpress stores dates in the format yyyy-mm-dd hh:mm:ssYou can fix this
• before you transfer the data to sql,
• after you have transferred it
• or during conversion,this will depend on where you knowledge lies. But you will need to fix it. If you don’t fix this, all the entries you import will show as posted 2014 years ago (basically year 0)
I converted before transferring to sql, as I an old and used to working with flat files! If you are more capable in sql, you could no doubt write a small programme to change the data format after you’ve uploaded to sql, and if more capable in php you could do it within the converter programme (see later)
The Snitz database has two tables with dates in that need changing. These are :
FORUM_TOPICS
FORUM_REPLYThis is how they showed in my Snitz database, but the prefix may be different with yours.
In FORUM_TOPICS you need to change
T_DATE
T_LAST_POSTIn FORUM_REPLY you need to change
T_REPLYI downloaded the access database from the old site to my PC. I then exported the two tables to an excel spreadsheet (in Access go to external data, and look for export to Excel. You’ll need to have created a blank spreadsheet with the name you want to use first) and ran the formula
=CONCATENATE(MID(N2,1,4),"-",MID(N2,5,2),"-",MID(N2,7,2)," “,MID(N2,9,2),":",MID(N2,11,2),":",MID(N2,13,2))Where column N contained the old date.
I then prefixed the original heading with OLD (eg heading T_DATE became OLDT_DATE) and headed the new column with the heading of the old one (eg T_DATE). I did this to a) preserve the original columns just in case, and b) to use for the clean slug in the conversion (see later).
I then deleted the old table in access, and imported the two excel ones back into Access (as before external data, then import).
I then had the same access database, but with the correct date formulas and a couple of extra columns with the old date format in them.
Step 2 – Convert access database to MySql database
The first thing you’ll need is a MySql database to upload to.
You can use the one you presumably already have with WordPress/BBpress. However you’ll just need to check that none of the names co-incide. Since my Snitz database used capitals (I don’t know if they all Snitz databases do), and BBpress uses lower case, I suspect that there is no risk in doing this, but one for you to consider.
I took the safety of creating a fresh blank database (my hosting package allows the creation of databases and manages them through phpMyadmin).
There are numerous programmes on the web that do access to Mysql conversion, but for no particular reason I chose Bullzip http://www.bullzip.com/.However this needs a 32bit ODBC driver to work, so unless you already have Mysql on your local PC, you’ll need to download the driver from http://www.mysql.com/downloads/connector/odbc/ – choose the 32 bit one.
Once installed it is a doddle to do the conversion.
You’ll need :
The access database on your pc
The host address of your MySql database
The database name
The username
The password.Run the wizard, and it’ll upload in minutes.
Finally if you’re going to do the date conversion discussed in Step 1 at this stage, now’s the time to do it.
Step 3 – Importing/converting the data
This is easy once you’ve got your head around it, but initially it can be very frustrating.
In essence you need to translate what one forum calls something to what the other needs.
For Snitz, I used the following translation
Forum section FORUM_FORUM forum Forum id FORUM_ID _bbp_forum_id Forum parent id CAT_ID _bbp_parent_id Forum title F_SUBJECT post_title Forum Slug (see note 1) FORUM_ID post_name Forum description F_DESCRIPTION post_content Forum Display Order F_ORDER Menu_order Forum Date Update Post_date Topic section FORUM_TOPICS topic Topic id TOPIC_ID _bbp_topic_id Forum id FORUM_ID _bbp_forum_id Topic author T_AUTHOR post_author Topic title T_SUBJECT post_title Topic Slug (see note 1) T_DATE post_name Forum id (if no parent 0) FORUM_ID post_parent Topic date update T_DATE post_date T_DATE post_date_gmt T_LAST_POST_DATE post_modified T_LAST_POST_DATE post_modified_gmt Tags section Ignored Post section FORUM_REPLY reply Post id REPLY_ID _bbp_post_id Forum id FORUM_ID _bbp_forum_id Topic id TOPIC_ID _bbp_topic_id Author ip R_IP _bbp_author_ip Post author R_AUTHOR post_author Topic slug R_DATE post_name Post Content R_MESSAGE post_content Topic id TOPIC_ID post_parent Topic date R_DATE post_date User Section FORUM_MEMBERS user Store old user id MEMBER_ID _bbp_user_id M_NAME user_login M_PASSWORD _bbp_password M_EMAIL user_email M_HOMEPAGE user_url M_AIM aim M_YAHOO yim[NOTE if you copy this and post in a word doc, you should be able to get a nice tabbed table]
Note 1I used OLDR_DATE & OLDT_DATE from the step 1 as my clean slugs. A slug is what BBpress uses for a URL to reference a post. It needs to be clean – ie not have formatting, odd characters like spaces etc. in it. I did debate using the topic ID, but was unsure if this was unique for BBpress – it may well be fine. So I used the references above as I was pretty sure that with our forum being not that busy, that no two people would have posted in the same second. If you choose to use some other field, such as topic ID, you’ll need to change the field in the converter document – see below.
This is then used against the example converter that BBpress supplies.
Whilst initially looking daunting, this is fairly easy to change to get it to work.
Step 3.1 Creating a Snitz.php
Firstly go to your site. Using FTP go to web/wp-content/plugins/bbpress/includes/admin/converters and locate example.php. FTP this to your PC and using an editor (notepad ++ is good – download it from http://notepad-plus-plus.org/) you need to change the default “froms” to those above
But first save it locally as “snitz.php”, and change the first couple of lines to read
/** * Implementation of snitz converter. */ class snitz extends BBP_Converter_BaseIf you don’t do this, the converter won’t recognise it.
Then you need to work through each of the lines of code changing the “default” source database tables and names to the correct ones.
So looking at you new
snitz.php, you’ll see for instance the first conversion is :// Forum id. Stored in postmeta. $this->field_map[] = array( 'from_tablename' => 'forum', 'from_fieldname' => 'forumid', 'to_type' => 'forum', 'to_fieldname' => '_bbp_forum_id'So to get this to work for Snitz you need to change the source table from ‘forum’ to “FORUM_FORUM” and the from field needs changing from ‘forumd’ to’ _bbp_forum_id’
Making the lines now read :
// Forum id. Stored in postmeta. $this->field_map[] = array( 'from_tablename' => 'FORUM_FORUM', 'from_fieldname' => 'FORUM_ID', 'to_type' => 'forum', 'to_fieldname' => '_bbp_forum_id'Using the translation table above you work through each of the lines, doing the substitution.
I commented out the tags section, as I couldn’t see that Snitz had tags. I also commented out the “
Store old user salt” and “User password verify class” sections as passwords won’t come across – see later on this.CRITICALLY I also added the following as the example doesn’t had a bit that brings the actual topic content across !
// Topic content. // Note: We join the posts table because topics do not have content. $this->field_map[] = array( 'from_tablename' => 'FORUM_TOPICS', 'from_fieldname' => 'T_MESSAGE', 'join_tablename' => 'thread', 'join_type' => 'INNER', 'join_expression' => 'USING (threadid) WHERE post.parentid = 0', 'to_type' => 'topic', 'to_fieldname' => 'post_content', 'callback_method' => 'callback_html'Once all that is done, save the file locally.
Then using FTP upload it to the same directory that example came from
Viz : web/wp-content/plugins/bbpress/includes/admin/converters
Now you’re ready to run the conversion!You’ll need the following info
Database server (localhost if your using you local Mysql database)
Database name
Database User
Database passwordThen in Dashboard, go to tools>forums>import forums
Select “snitz” from the converter list, and fill in the database info from above.
Click to select users, presuming that you want to bring these across.
Then click start, and sit back and watch. If you’ve got everything right, you’ll see a steady stream of lines such as “converting topics 1-100”
If Fails :
If it falls over, then you’ll need to work out which part of the snitz converter it doesn’t like (it’ll give you a line number). Usually you’ve got punctuations wrong, or called something by a wrong name. Remember snitz (in my case anyway) uses capitals, and bbpress needs lowercase, so ensure that’s all ok.
If nothing comes through (it usually says “starting conversion…conversion complete”), then you have got the connection wrong, as it’s not finding the database and tables.
If Success :
Then you’ll need to repair the links (Dashboard>tools>forums>repair forums). Otherwise in my case the forum listings came through, but with no topics listed against them.
Do as the tool suggests – I ran several at the same time, and wrote most of this document whilst waiting !
Finally – users
If you successfully imported your users, they’ll have accounts, but their passwords won’t work – Bbpress can’t bring these across.
The easiest way is to tell them to click “lost password” and enter their email address and then they can reset their own.
And that’s how it’s done !
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I changed the default value to “special” in this part below.
I don’t think this would cause that error, the fact that I’ve no idea what is causing that error “could” be in fact the cause of the error.
The “Reset Forums” tool includes the ability to delete all bbPress forum content and imported users, run this and that should get rid of your ~30k imported users.
After that, try changing that “special” back to “Snitz” (I think thats what it was) and se what happens.
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