Hello Glen,
I just want to know that the below relations in WeblogCategory.orm.xml
are required or not as now the parent is not used so, I don't think its
needed now. I have commented the below lines.
<many-to-one name="parent"
target-entity="org.apache.roller.weblogger.pojos.Category">
<join-column name="parentid" insertable="true"
updatable="true" nullable="true"/>
</many-to-one>
<one-to-many name="weblogCategories" mapped-by="parent"
target-entity="org.apache.roller.weblogger.pojos.Category" fetch="LAZY">
<cascade>
<cascade-remove/>
</cascade>
</one-to-many>
<transient name="inUse"/>
I asked this because, getting categories giving me mysql exception. The
new table is 'roller.category' but it executes for
'roller.category_category'.
I am not able to get what I have done wrong.
Internal Exception: com.mysql.jdbc.exceptions.MySQLSyntaxErrorException:
Table 'roller.category_category' doesn't exist
Error Code: 1146
Call: DELETE FROM category_category WHERE (WeblogCategory_id = ?)
bind => [1 parameter bound]
Query: DataModifyQuery(name="weblogCategories" sql="DELETE FROM
category_category WHERE (WeblogCategory_id = ?)")
Also, I have changed the getWeblogCategoryByPath to
getWeblogCategoryByName so feeds and other places work fine. I have able
to get catgeory list, new entries are creating successfully. Just
deleting the weblog is giving me above error.
Thanks
Gaurav
On Saturday 04 January 2014 12:53 PM, Gaurav wrote:
Hello Glen,
I have already deleted getPath and getParent and in the mid of
everything. I hope I will be able to complete this by Monday. If
still, I get some major issues due to this, I will switch to what you
suggested. Just give me time till Monday, as I have done almost 80% of
code cleaned regarding the path and parentcategory. I will get back to
you soon with some patches and then you can test it.
Also, my ICLA have been filed, got the receipt of my ICLA.
Thanks
Gaurav
On Wednesday 01 January 2014 08:07 AM, Glen Mazza wrote:
Gaurav, sorry, it just occurred to me there's a simpler intermediate
step that can be done. While we need the database table without a
path column, and to remove the "path" member *variable* from
WeblogCategory (or its replacement), we can still keep indefinitely
keep getPath(), just hardcode it to "/" + categoryName, which is
precisely what the old code returns for any top-level category--the
rest of the system can stay just as it did before. Switching the
rest of the code from getPath() to using getName() can be done at any
time, bit by bit whenever, that's not necessary to implement
positioning, that's just a code cleanup issue. Likewise, for
WeblogCategory.getParent(), it may be as simple as adding a root
category object as part of the Weblog's constructor (but not saved to
the database), and having WeblogCategory.getParent() just return
website.getParentCategory()--that way all categories for a weblog
will have the same root category as before, and the rest of the code
base should function fine. Once we're on the new table, then it's an
issue of implementing positioning--getting rid of getParent() and
getPath() can be done by anybody at a later date.
Regards,
Glen
On 12/31/2013 08:09 AM, Glen Mazza wrote:
No problem, I'm available to help (or finish it up) if needed. For
a seemingly simple switch, you're certainly getting a *full*
education of the Roller codebase. :)
BTW, I hope you're not testing via mvn jetty:run, as that requires
you to keep logging in for the first time, creating a blog for the
first time, etc., whenever you start it. Very inefficient and
tiring. Normally I just build (mvn clean install) and dump the WAR
into standalone Tomcat on my local machine. The database & other
configuration I keep permanently in roller-custom.properties in the
Tomcat lib/ folder, so the new WAR just takes over with the same
configuration, blogs, accounts, etc., that old WAR was using. (Check
the Roller install guide for full instructions.)
Also vital is that you know how to debug/trace Roller code in
Eclipse or IntelliJ while it is running on Tomcat (or another
servlet container). It's much simpler than it seems, and will save
you a lot of time. These instructions are for Eclipse but Intellij
(my preference) is basically the same:
http://www.jroller.com/gmazza/entry/eclipse_debug_web_services#ec3.
Checking variable values while it's running will point you to where
problems are much more quickly.
Happy New Year!
Regards,
Glen
On 12/31/2013 06:39 AM, Gaurav wrote:
Hello Glen,
As, I previously told you that the test cases are giving problem,
actually I think we have to do some changes in Test Cases also, as
many of the methods involving path and parent are removed so, many
times in test cases (it did not get correct values and give errors).
I have successfully showed the categories by website till now in
the admin section. Also, the entries are saved just, I ran out of
memory issue in happen when I save an entry that entry, although it
get saved when I refresh the page.
Also, as their is not path now, we have to do some changes in
velocity files, as feeds are giving error in showing, although if I
direct enter the URL its working fine. I have cleared many parts of
the code, just I have test of the roller parts which are linked the
path and parent. I am thinking of correcting the test cases, as I
can run them and if test cases are fine then might be everything
will work fine.
I will return to work on this after 3 days, as I will be and will
get be to it during coming weekend again. I will wrap this out asap
for you to test and will attach patches coming weekend.
Thanks
Gaurav
On Saturday 28 December 2013 05:49 PM, Gaurav wrote:
Thanks for that info, I have changed my settings in the eclipse.
Yes, you are right I will leave the ordering part for now and work
on clearing the code for now. For now I will just add a column in
category table with position, leaving it null for now.
Regards,
Gaurav
On Saturday 28 December 2013 05:33 PM, Glen Mazza wrote:
Your last ImprovedCreateUser.patch had some tab characters in it,
and our project uses spaces for tabs (just have Eclipse insert 4
spaces whenever you hit the tab key, with no tab characters.)
Very few Apache projects (any?) are tab-indented today. It is a
simple fix with IntelliJ IDEA (Edit -> Convert Indents -> To
Spaces), I'm sure Eclipse has an equivalent.
For blogs migrating from pre-5.1 versions, we can keep the
position NULL by default (and when you order by position, with
null values, they will come out in any order, like they do
today.) Whenever a new blog is created with the default three
categories, those can be assigned positions (probably 0-based for
leftmost is best.) For migrated blogs, once the user goes to the
category page and makes a change for the first time, numbers can
be written for the very first time--no special extra UI is needed
for this purpose. But like I was saying, this is such a lengthy
patch you may wish to forget about the ordering right now--it
doesn't work anyway in Roller right now. It may be best to get
us to the new table and get rid of the paths, and once we're on
that firmer foundation implementing positioning (on the Category
page and in the templates) will be much simpler.
Regards,
Glen
On 12/28/2013 06:14 AM, Gaurav wrote:
Hello Glen,
I will change the position to be integer, and will exclude the
category where parent null, but still what can be done for the
position as the old data did not have position, so how and on
what basis we have to add position to it. I was thinking that we
can left it as null, and provide some UI in backend where user
can assign position themselves.
I will take care of spacing, will search what I am doing wrong.
As, I am not sure is that you are talking about formatting the
code, or anything else. As I use tab (with 4 spaces) in Eclipse
IDE.
Thanks
Gaurav
On Saturday 28 December 2013 04:27 PM, Glen Mazza wrote:
BTW, not to be hated, but make sure any code you submit is
space-padded (4 spaces), *not* tab-padded. Your IDE should be
able to convert it for you if you've been doing tab-padding.
Regards,
Glen
On 12/28/2013 05:06 AM, Gaurav wrote:
Hello Glen,
I am confused on how to add and on what basis we have to addd
position to the new category table. Below two sql commands can
be used for coping data and deleting the root categories.
create table category (
id varchar(48) not null primary key,
name varchar(255) not null,
description varchar(255),
websiteid varchar(48) not null,
image varchar(255),
position varchar(48)
);
insert into category(id,name,description,websiteid,image)
select id,name,description,websiteid,image from weblogcategory;
delete from category where name="root";
What do you suggest for this ?
Thanks
Gaurav
On Saturday 28 December 2013 06:56 AM, Glen Mazza wrote:
Take your time, this is a messy change as it affects many
areas of the code. But Roller will be architecturally much
more solid and simpler once this change is done. I have your
ROL-1616 and ROL-1982 on my plate for this weekend.
Glen
On 12/27/2013 02:40 PM, Gaurav wrote:
Hello Glen,
I have deleted the path and all related methods, but its
seems to me that the path methods like
(getWeblogCategoryByPath) and many other path and parent
related methods, are scattered over the whole roller. There
are many occurrence of these methods and I have to sort out
each piece of code as now there is no path so, mostly we
check for categoryPath != null in if conditions, so these
are no longer needed.
Also, I as thinking after testing and completing this we can
delete the WeblogCategory and replace with Category method,
as it will be clean. I also figured out why my tests are
failing as during creating of weblogentry it did not find
the categories, as that class was using old WeblogCategory
table and using that class methods. I think I will
definitely will figure out everything at the end and will
successfully test with the unit tests.
I am now in the editor part so can display the categories on
front end, I am now all over the 1-2-3-4 steps you
mentioned. As soon as I will able to display the categories
(small issues left) at the backend, I will again go through
my changes. Also, at this time I can only create patch for
new table and migration script, as all other classes code
are interrelated so can't submit now. I will test every
single thing related to categories, then I will submit my
patches.
Although I have learned a lot new things, just spent last
two full days on this sorting out things, many times ending
up nowhere from where I started. But I am confident that I
will definitely complete this task. Just I am worrying that
I must be taking too much time.
If there is something, you can advice me I would happy to
follow that also.
Thanks
Gaurav
On Friday 27 December 2013 05:09 AM, Glen Mazza wrote:
If it helps, you can provide interim patches, so long as it
doesn't break the current code base. You may want to create
a patch just creating the new database table (which will be
ignored by the current code) and sql insert-select scripts
to move from the current table to the new one, then one
converting the code to using the new table without sorting,
then (finally) one that implements sorting of the categories.
Glen
On 12/26/2013 08:12 AM, Gaurav wrote:
Hello Glen,
I have created and updated all necessary files in JPA and
for database, I tried compiling the code it gave me errors
in test cases. As I am not sure that what I am wrong in
this. Although I tried compiling without running test
cases, it worked fine. I tested it with tomcat and new
table category is created and initial category (General,
Finance and Technology) are created with the position
1,2,3. Still there are many thing I have to clean up and
sort out and will test it again.
Thanks
Gaurav
On Thursday 26 December 2013 03:31 PM, Gaurav wrote:
Ok, got your point. I will check on other Roller parts
also if parent name and path aren't be using in any other
part of Roller. I will go into the RSS and Atom feeds
later on, and see what changes it need. As, till now I
have changed many files and created some, so will first
test this part then go into that feeds part.
Thanks
Gaurav
On Thursday 26 December 2013 03:23 PM, Glen Mazza wrote:
Sounds good, but may require more work to make sure all
is good with the RSS and Atom feeds as a result (which I
believe rely on path). Where path is used to check for
equivalence, I guess name (and blog/website ID, if
necessary) alone will do now. We may need to check (if
we aren't already) that no two categories have the same
name, where prior we were checking that no two paths are
the same (i.e., allowing category paths USStates/Georgia
and Countries/Georgia but now needing to disallow two
categories named "Georgia".)
Regards,
Glen
On 12/26/2013 12:47 AM, Gaurav wrote:
Hello Glen,
I am thinking of removing the path coloumn also, as it
does not make sense now as there will no subcategories
and all will have same path (like /categoryname). WDYT ?
Thanks
Gaurav
On Wednesday 25 December 2013 04:05 PM, Glen Mazza wrote:
Yes, the root category can be nuked.
Glen
On 12/25/2013 05:28 AM, Gaurav wrote:
Hello Glen,
I want to know as now all the categories will be top
level, so the root category which is created by
default on addWeblog isn't needed. So, I can remove
that code also ? I am in half completed with the 1-2
steps will soon submit some patched in jira issue.
You can look on to them whenever you will get time
from other projects.
Merry Christmas :)
Thanks
Gaurav
On Tuesday 24 December 2013 10:57 AM, Gaurav wrote:
Glen,
Thanks a lot for replying soon on this, I understand
your commitments. As this will give me more time on
working on this issue. I will give my 100% on this,
as I also want to get into more and more open source
projects. For Now I am focusing on Roller for
starting my contributions in open source.
Thanks
Gaurav
On Tuesday 24 December 2013 10:51 AM, Glen Mazza wrote:
No, not a rush (unfortunately I can't help much
right now either, as my other project JSPWiki has a
new release going out.) But please be patient with
us on your recent submitted patches -- we haven't
forgotten you and are happy with your efforts on
this project so far, we just have full-time jobs
and, even after that, other obligations -- for open
source work, we usually have to beg, borrow and
steal time to work on them.
Glen
On 12/24/2013 12:05 AM, Gaurav wrote:
Hello Glen,
I am going through this having some issues,
although not major till now. I have still working
on 1-2 steps, might be I am slow as get less time.
(Wish we also have holidays of this festive season
in India :P) Just want to know isn't there any
hurry for completing this asap ? Although, I am
sure will definitely complete this as I have
understood the structure of Roller completely.
Just I have to go through the JPA more and read
about this.
Thanks
Gaurav
On Saturday 21 December 2013 04:59 PM, Glen Mazza
wrote:
Looking good. Anything you're missing will become
apparent to you as you work along. The Roller
installation guide and here
(http://www.jroller.com/gmazza/entry/apache_derby_setup)
can show you how to test also with Derby if you'd
like. (It is usually simpler than MySQL, and
another benefit of working on Roller is that you
become multiple-database-lingual very quickly.)
Glen
On 12/21/2013 06:16 AM, Gaurav wrote:
Hello Glen,
Thanks for helping in this and I with this much
deep information, I can start working in it. I
have started working on this Issue and have
followed your steps.
1. Created a new table in createdb.vm and in
migration scripts also. I have for mow stared
working on MySQL.
2. In JPAWeblogEntryManagerImpl class, I have
commented updatePathTree and
getRootWeblogCategory methods
3. I have created a new file for now
Category.orm.xml and enterd details of new
table. A new class Category in weblogger/pojos.
I have created new files for now and will work
on this and add new position coloum and code
regarding this. Other than UI and template
Layer, I think I have covered all files on which
I have to work on the Database and JPA layers ?
Please tell me if I am wrong anywhere or
following wrong workflow.
Thanks
Gaurav
On Saturday 21 December 2013 04:59 AM, Glen
Mazza wrote:
Hi Gaurav, we use Velocity for our database
scripts -- you see a createdb.vm plus migration
scripts (5.0 to 5.1) -- we'll want our change
in both places (IIRC), new users have the
createdb run and Roller upgraders with their
current DB's have the 5.0 to 5.1 migration
script run.
We have multiple issues here and I'd like to
get this done right (I plan on helping out
where you'd like). Namely, we've moved from a
hierarchical category structure (categories
having subcategories having their own
subcatorgories etc.) to a flat single-level
structure (all categories are top level) --
that was done a week or so back. Problem is,
the database tables are still assuming
hierarchical (they will work with flat
structures but are overkill--we don't need a
parent ID column anymore.) Also, the JPA
objects are designed for hierarchical but can
simplified a bit more to flat structure.
Incidentally, "sequenceNum" is ambiguous about
what it means, I would say "position" or
"ordering" (INT null, null for migrators who
don't yet have a position defined) is clearer.
I think the simplest way to handle this--for
both new installers and upgraders--is:
1.) Database: To create a new table, say
"category" designed precisely as we need, and
have the migration scripts select from the old
weblogcategory and insert into the new category
table. (We then ignore the weblogcategory
table.) We'll need to test the scripts with at
least two databases (2 of probably MySQL, Derby
and/or PostgreSQL) and guess for the others--if
we're wrong the user community can supply a
patch fixing it.
2.) JPA: The JPA persistence object (the old
WeblogCategory) will need
simplifying/restructuring as it's now
flat-level. Indeed, I think things will get a
*lot* simpler here, as it may just be the
parent Weblog holding a list of some sort of
Category objects--that's it.
3.) UI Layer: The category.jsp (or whatever
it's called) and its Struts action class will
now need to use the new Category object (and
table) instead of WeblogCategory. The UI page
will need two changes: (1) all new categories
will be placed (and saved) at the bottom of the
category list (and as result, appear last
(right-most) in the category list, and, later
(2) probably have up and down buttons in the
table allowing users to easily reorder the
categories as they like. (Strictly speaking, 1
alone is all that's needed for ordering, as you
can remove/name/delete/recreate categories to
eventually get them in the position you'd like,
but (2) of course is much nicer.)
4.) Template layer (haven't looked into this):
The templates (probably just a macro or two)
will need updating to ensure that they output
the category names per the new position order.
It's a lot of work, but one advantage is that
I'd like to do the same thing with
bookmarks/blogrolls (team discussion
pending...), switch from a hierarchical to
flat-level for those too. If we can do this
for categories, the logic/UI design, etc., will
carry over 100% to bookmarks.
I was planning on eventually getting to this
myself, so am available to work with you on
whatever parts you'd like. I think going in
order 1-2-3-4 and having separate commits may
be the cleanest way of doing this. What's nice
about using a brand new table and JPA object is
that the old objects can still work in the code
while we're creating the new, we just don't
activate the new until the very end.
WDYT? (Also, other team members on the above
ideas...?) Or are there other Roller tasks
you'd like to sink your teeth into instead? I
can look at this otherwise, but this looks like
a very good exercise for someone wanting to get
more involved in Roller, as it covers all the
layers of the webapp.
Regards,
Glen
On 12/20/2013 10:43 AM, Gaurav wrote:
Hello,
I have started working on ROL-1981, as
discussed in previous discussion threads I
will add new column sequenceNum in
weblogcategory table. Then we can assign
sequenceNum to each category according to
websideid. If anyone have some ideas regarding
this, please help me. Also, need some help on
how to go with this issue, and how to add new
coloum, I found .sql file, do I need to add
there new column. Also, Is this possible that
that when I restart the roller it will add new
column to database ?
Thanks for Any ideas/help.
[1] -
https://issues.apache.org/jira/browse/ROL-1981
