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  • Custom keyboard shortcuts are reset. How can I make them set permanently?

    - by Awi
    I'm having a problem with both Ubuntu 12.04 and 12.10 with custom keyboard shorcuts. They are reset after a while (I can't find a pattern but it seems to be when a massive upgrade happens). It happend to me a couple of days ago, when 12.10 got about 27 updates. I've searched launchapd and askubuntu, and found no question similar. My shortucts are not lost on reboot, I still can't find a pattern to identify the problem as I said. I tried also not using Control Center app, but gnome's dconf-editor, but same result as I found on some blog post. My question is, how can I save my custom shorcuts to restore them when this happens? Can somebody help me compose a bug for launchpad, like what package could be causing this, so I can fill a bug report. Thanks in advance.

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  • Disable keyboard suspend key

    - by Jcubed
    How do I disable my keyboard's suspend key? My keyboard (Logitech k800) has a key for powering off the pc, in Ubuntu its working as a suspend button. I've tried assigning another shortcut to that button, but its not preventing the computer from sleeping. Also, I'm not sure if there's a difference between suspend and sleep, but it appears to be turning the computer completely off, but when I start it back up it resumes where it left off.

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  • How can I paste text by pressing the left and right mouse buttons at the same time?

    - by Badministrator
    I am coming from Ubuntu 10. I just recently upgraded to 12.04 LTS. In 10, I use to be able to cut and paste from Terminal by selecting text, and just pressing my two mouse buttons. In 12.04, I can't seem to do this. I have to highlight text, then right click to copy, then right click to paste. Or, I can do ctrl-shift-c and ctrl-shift-v. Both are okay methods, but not as fast as before. How do I configure Ubuntu to preserve 'old-school' cut and paste?

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  • How can I change the percent of screen brightness that changes every time I press the shortcut?

    - by Chriskin
    When I press Fn+F6 the change in brightness is too big. How can I make it move less than it does now? (Let's say, half that, for example.) (11.04/Gnome. I'm on proprietary nvidia drivers.) EDIT: I haven't tried what Rinzwind has written below because , after throwing a cup of coffee on my laptop, my keyboard was destroyed (so i no longer have the FN button that is needed - i'm currently writing from an external one). I have already ordered a new one and i will collect it from the service center tomorrow at noon

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  • How to set Fn+F2 to show battery's status throug OSD and not power statistics?

    - by papukaija
    In natty pressing Fn+F2 on my Samsung NC10 opened a new notification with the remaining battery power. After upgrading to Oneiric, it opens the power statistics. Is the a way to revert this change? Checking the battery status with the notification is much faster than finding it from the power statistics. I know that the remaining battery time can be set to be shown on the panel but I'm used to Fn+F2.

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  • What is the keyboard shortcut to minimise a window to launcher in unity?

    - by uzi3k
    In 10.10 that I was using before 12.04 you could use alt+F9 to minimise a window to the task bar. In 12.04 meta+ctrl+ cursor up down maximises and unmaximises a window. If you have a numeric keypad you can use ctrl+alt+0 to minimise to launcher. On my netbook I don't have a numeric keypad and the normal numbers do not work with the above shortcut. How can I minimise windows with a keyboard shortcut?

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  • How to disable the "roll up" / "shade" keyboard shortcut in Gnome 3 (after upgrading to 12.04)?

    - by torpesco
    I am using Gnome 3. After upgrading from 11.10 to 12.04, "Ctrl-Alt-S" was reclaimed for use in toggling the shaded state of a window. I have checked the following places, and I haven't been able to find any instance of a keybinding set for toggling the shaded state. System Settings / Hardware / Keyboard / Shortcuts (as per How do I disable Ctrl+Alt+s to minimize a window?) I even tried setting a different shortcut. Made no difference. dconf-editor (now deprecated, from what I've found) gconf-editor/gsettings What am I missing?

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  • How do I focus an "urgent" application?

    - by pydave
    Sometimes applications will wiggle in the launcher and have a blue triangle. (See compiz config settings for Unity.) How can I set a keyboard command to bring that application to the front in Ubuntu 11.10? I had it set in 11.04, but I don't remember how. This is useful when programs open in the background or if you activate them from another app. (I have an alias to send files to a single gvim instance from Terminal instead of opening them in their own window. When gvim gets the file, it wiggles but doesn't gain focus.)

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  • Android–Supporting Multiple Devices Part 2

    - by rodelljr
    Originally posted on: http://geekswithblogs.net/rodelljr/archive/2014/06/03/androidsupporting-multiple-devices-part-2.aspxI would like to thank the KC Mobile App Developers group for allowing me to do my presentation; Supporting Multiple Devices Part 2. In this talk, I discussed a Master/Detail application that runs on Android 2.2 devices and forward. I used the Actionbar compat Android library to allow the older devices to have an actionbar. I also used a SQLite database for my data. And just to add one last thing, I also incorporated the use of custom fonts. If you are interesting in looking at this sample application, I have uploaded it to my GitHub account here. I also have a Power Point presentation which you can get here.I will be doing this talk again at a later date this year, so when I have a date and location, I will post a follow up blog.

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  • Scale effect to preview and switch between windows?

    - by ycelik
    at work ive installed ubuntu 10.10 and love using the Super+a keyboard shortcut to switch between my windows. at home i use kubuntu 12.04 and miss that feature. ive seen a video on youtube and know that it is possible but couldn't figure out how. https://help.ubuntu.com/community/KeyboardShortcuts/ Super + A | Enables the 'scale' effect, it shows all windows from all workspaces. thanks for your time

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  • Building a many-to-many db schema using only an unpredictable number of foreign keys

    - by user1449855
    Good afternoon (at least around here), I have a many-to-many relationship schema that I'm having trouble building. The main problem is that I'm only working with primary and foreign keys (no varchars or enums to simplify things) and the number of many-to-many relationships is not predictable and can increase at any time. I looked around at various questions and couldn't find something that directly addressed this issue. I split the problem in half, so I now have two one-to-many schemas. One is solved but the other is giving me fits. Let's assume table FOO is a standard, boring table that has a simple primary key. It's the one in the one-to-many relationship. Table BAR can relate to multiple keys of FOO. The number of related keys is not known beforehand. An example: From a query FOO returns ids 3, 4, 5. BAR needs a unique key that relates to 3, 4, 5 (though there could be any number of ids returned) The usual join table does not work: Table FOO_BAR primary_key | foo_id | bar_id | Since FOO returns 3 unique keys and here bar_id has a one-to-one relationship with foo_id. Having two join tables does not seem to work either, as it still can't map foo_ids 3, 4, 5 to a single bar_id. Table FOO_TO_BAR primary_key | foo_id | bar_to_foo_id | Table BAR_TO_FOO primary_key | foo_to_bar_id | bar_id | What am I doing wrong? Am I making things more complicated than they are? How should I approach the problem? Thanks a lot for the help.

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  • Database design MySQL using foreign keys

    - by dscher
    I'm having some a little trouble understanding how to handle the database end of a program I'm making. I'm using an ORM in Kohana, but am hoping that a generalized understanding of how to solve this issue will lead me to an answer with the ORM. I'm writing a program for users to manage their stock research information. My tables are basically like so: CREATE TABLE tags( id INT AUTO_INCREMENT NOT NULL PRIMARY KEY, tags VARCHAR(30), UNIQUE(tags) ) ENGINE=INNODB DEFAULT CHARSET=utf8; CREATE TABLE stock_tags( id INT AUTO_INCREMENT NOT NULL PRIMARY KEY, tag_id INT NOT NULL, stock_id INT NOT NULL, FOREIGN KEY (tag_id) REFERENCES tags(id), FOREIGN KEY(stock_id) REFERENCES stocks(id) ON DELETE CASCADE ) ENGINE=INNODB DEFAULT CHARSET=utf8; CREATE TABLE notes( id INT AUTO_INCREMENT NOT NULL, stock_id INT NOT NULL, notes TEXT NOT NULL, FOREIGN KEY (stock_id) REFERENCES stocks(id) ON DELETE CASCADE, PRIMARY KEY(id) ) ENGINE=INNODB DEFAULT CHARSET=utf8; CREATE TABLE links( id INT AUTO_INCREMENT NOT NULL, stock_id INT NOT NULL, links VARCHAR(2083) NOT NULL, FOREIGN KEY (stock_id) REFERENCES stocks(id) ON DELETE CASCADE, PRIMARY KEY(id) ) ENGINE=INNODB DEFAULT CHARSET=utf8; How would I get all the attributes of a single stock, including its links, notes, and tags? Do I have to add links, notes, and tags columns to the stocks table and then how do you call it? I know this differs using an ORM and I'd assume that I can use join tables in SQL. Thanks for any help, this will really help me understand the issue a lot better.

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  • Using MyGeneration, doodads, and Oracle XE, is it possible to implement an "auto number primary key"

    - by Michael Rosario
    Hello world. Using MyGeneration, doodads, and Oracle XE, is it possible to implement an "auto number primary key" scheme? Problem facts: I am using Oracle XE. I have implemented the following table and trigger: CREATE TABLE "USERS" ( "ID" NUMBER(38,0), "USER_NAME" VARCHAR2(50), "PASSWORD" VARCHAR2(50), "EMAIL" VARCHAR2(100), CONSTRAINT "USERS_PK" PRIMARY KEY ("ID") ENABLE ) / CREATE OR REPLACE TRIGGER "BI_USERS" before insert on "USERS" for each row begin select "USERS_SEQ".nextval into :NEW.ID from dual; end; / ALTER TRIGGER "BI_USERS" ENABLE / MyGeneration / Doodads created the following stored proc... CREATE OR REPLACE PROCEDURE "XXX"."PI_USERS" ( p_ID IN USERS.ID%type, p_USER_NAME IN USERS.USER_NAME%type, p_PASSWORD IN USERS.PASSWORD%type, p_EMAIL IN USERS.EMAIL%type ) IS BEGIN INSERT INTO USERS ( ID, USER_NAME, PASSWORD, EMAIL ) VALUES ( p_ID, p_USER_NAME, p_PASSWORD, p_EMAIL ); END PI_USERS; The sequence and trigger combination is working fine. The BusinessEntity class in C# does not receive the new ID. Any recommended ways to allow the calling code receive the new record ID?

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  • How to reserve a set of primary key identifiers for preloading bootstrap data

    - by Joshua
    We would like to reserve a set of primary key identifiers for all tables (e.g. 1-1000) so that we can bootstrap the system with pre-loaded system data. All our JPA entity classes have the following definition for the primary key. @Id @GeneratedValue(strategy = IDENTITY) @Column(name = "id", unique = true, nullable = false, insertable = false, updatable = false) private Integer id; is there a way to tell the database that increments should start happening from 1000 (i.e. customer specific data will start from 1000 onwards). We support (h2, mysql, postgres) in our environment and I would prefer a solution which can be driven via JPA and reverse engineering DDL tools from Hibernate. Let me know if this is the correct approach

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  • ManyToMany Relation does not create the primary key

    - by Javi
    Hello, I have a ManyToMany relationship between two classes: ClassA and ClassB, but when the table for this relationship (table called objectA_objectB) there is no primary key on it. In my ClassA I have the following: @ManyToMany(fetch=FetchType.LAZY) @OrderBy(value="name") @JoinTable(name="objectA_objectB", joinColumns= @JoinColumn(name="idObjectA", referencedColumnName="id"), inverseJoinColumns= @JoinColumn(name="idObjectB", referencedColumnName="id") ) private List<ClassB> objectsB; and in my ClassB I have the reversed relation @ManyToMany List<ClassA> objectsA; I just want to make a primary key of both id's but I need to change the name of the columns as I do. Why is the PK missing? How can I define it? I use JPA 2.0 Hibernate implementation, if this helps. Thanks.

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  • Very long strings as primary keys in a database for caching

    - by Bill Zimmerman
    Hi, I am working on a web app that allows users to create dynamic PDF files based on what they enter into a form (it is not very structured data). The idea is that User 1 enters several words (arbitrary # of words, practically capped of course), for example: A B C D E There is no such string in the database, so I was thinking: Store this string as a primary key in a MySQL database (it could be maybe around 50-100k of text, but usually probably less than 200 words) Generate the PDF file, and create a link to it in the database When the next user requests A B C D E, then I can just serve the file instead of recreating it each time. (simple cache) The PDF is cpu intensive to generate, so I am trying to cache as much as I can... My questions are: Does anyone have any alternative ideas to my approach What will the database performance be like? Is there a better way to design the schema than using the input string as the primary key?

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  • Getting the primary key back from a SQL insert with SQLLite

    - by Paul Nathan
    Hi, I have a SQL table set that looks like this create table foo ( id int primary key asc, data datatype ); create table bar ( id int primary key asc, fk_foo int, foreign key(foo_int) references foo(id)); Now, I want to insert a record set. insert into table foo (data) values (stuff); But wait - to get Bar all patched up hunkydory I need the PK from Foo. I know this is a solved problem. What's the solution?

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  • When should I consider representing the primary-key ...?

    - by JMSA
    When should I consider representing the primary-key as classes? Should we only represent primary keys as classes when a table uses composite-key? For example: public class PrimaryKey { ... ... ...} Then private PrimaryKey _parentID; public PrimaryKey ParentID { get { return _parentID; } set { _parentID = value; } } And public void Delete(PrimaryKey id) {...} When should I consider storing data as comma-separated values in a column in a DB table rather than storing them in different columns?

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  • NHibernate - get List<long> representing primary keys?

    - by Nathan
    I have a situation where I definitely don't want to get the whole domain object. Basically, the entity has a primary key of long (.NET)/bigint(sql server 2005). I simply need to pass the primary key to an external system which will access the database directly - and since the list of ids could be large, I don't want to rehydrate the entire domain object just to get the Id. In linq2sql, I could accomplish this with a projection, but I am restricted to NHibernate 1.2.1.4000, which doesn't support Linq. Is there a way to accomplish this using NHibernate 1.2.1.4000? (I am open to using a named-query if that will work)

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  • Drupal limit number of menu items in primary links

    - by ninusik
    Is there a way to set a limit on how many menu items users can add to Primary Links menu? I'm working on a Drupal site and I have a horizontal primary links nav bar. There is only room for no more than 7-8 links in the nav bar. I don't want the future maintainer of the site to add more than 8 items to the menu. Is there a way I can set a limit on that? Some module or override function? Thanks,

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  • Rails 3: habtm migration, primary key issue

    - by Brian Wigginton
    I'm trying to setup a migration file for a habtm relationship, however when I run the migration I'm getting the following error: Primary key is not allowed in a has_and_belongs_to_many join table (parts_vehicles). Here is my migration file (20110111035950_create_parts_vehicles.rb): class CreatePartsVehiclesJoinTable < ActiveRecord::Migration def self.up create_table :parts_vehicles, :id => false do |t| t.integer :part_id t.integer :vehicle_id end end def self.down drop_table :parts_vehicles end end The documentation example states to use :id => false to disable a primary key from being generated, but I'm still getting the error.

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  • Composite Primary and Cardinality

    - by srini.venigalla
    I have some questions on Composite Primary Keys and the cardinality of the columns. I searched the web, but did not find any definitive answer, so I am trying again. The questions are: Context: Large (50M - 500M rows) OLAP Prep tables, not NOSQL, not Columnar. MySQL and DB2 1) Does the order of keys in a PK matter? 2) If the cardinality of the columns varies heavily, which should be used first. For example, if I have CLIENT/CAMPAIGN/PROGRAM where CLIENT is highly cardinal, CAMPAIGN is moderate, PROGRAM is almost like a bitmap index, what order is the best? 3) What order is the best for Join, if there is a Where clause and when there is no Where Clause (for views) Thanks in advance.

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