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  • Access: strange results with queries against MDB file

    - by Craig Johnston
    I am running the following SQL against an MDB file, a copy of which is located here: http://hotfile.com/dl/40641614/2353dfc/test.mdb.html (perfectly clean file, no macros or viruses) SELECT datediff("d", MAX(invoice.date), Now) As Date_Diff , MAX(invoice.date) AS max_invoice_date , customer.number AS customer_number FROM invoice INNER JOIN customer ON invoice.customer_number = customer.number GROUP BY customer.number If the the following was added: HAVING datediff("d", MAX(invoice.date), Now) > 365 would this simply exclude rows with Date_Diff <= 365? What should be the effect of the HAVING clause here?

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  • Modifying association arrays on cloned ActiveRecord objects

    - by Craig Walker
    I have an ActiveRecord model class Foo that has_many Bar. I want to clone a Foo (to get duplicates of most of its attributes) and then modify its Bar instances. This is a problem because cloned ActiveRecord instances share the same associated array; changes to one affect the other. f1 = Foo.new b = Bar.new f1.bars << b f2 = f1.clone f2.bars.includes? b # true f1.bars.clear f2.bars.includes? b # now false The real problem is that I can't detach the bars arrays from either Foo: f1.bars << b f2.bars.includes? b # true f2.bars = [] f2.bars.includes? b # now false f1.bars.includes? b # now also false If I could do that, then I could replace the Bars as I wanted to. However, any change to one Foo seems to affect the other.

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  • Handling ID's with db4o and ASP.NET MVC2

    - by Craig McGuff
    So, i'm looking at the TekPub sample for ASP.NET MVC2 (http://mvcstarter.codeplex.com/) using DB4o and there are a bunch of templates to create controllers etc, the generated code looks like: public ActionResult Details(int id) { var item = _session.Single<Account>(x=>x.ID == id); return View(item); } Now, my understanding is that using DB4o or a simliar object database that ID's are not required, so how/what exactly do I pass to enable this kind of templated code to function? UPDATE: Both answers were useful, I have modifed the templates to use GUID as the ID. I will add any relevant code/notes here once I see how it works out.

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  • VB6: Question about version numbers of dependent OCXs

    - by Craig Johnston
    Is it important for a VB6 app to refer to certain OCX versions? I have noticed that if I put my VB6 app code through the IDE on one machine then the form files will refer to different version of some OCXs than if I use another machine. What is the rule of thumb with this? Is it safe to assume that most of these old OCX versions will be compatible with each other and so I shouldn't worry? Some of the OCXs in question are: RICHTX32.OCX v1.1 and v1.2 COMCTL32.OCX v1.2 and v1.3

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  • JQuery Progress Bar Inline Text

    - by Craig
    Hello, I am trying to use the basic progress bar however I am unable to figure out the css/command to actually put some text inside the bar. I am using this progress bar: http://docs.jquery.com/UI/Progressbar however I am open to other ones if they are just as simple to implement. I want it to display in the left corner some static information and then a percentage of complete somewhere in the right section. All css I attempted to do just made the information display below or to the side of. As well I am unsure how to actually have this CSS change based on a JQuery method (new to JQuery). below is my actual JQuery. Don't try to understand the url value just assume it returns 0-100. <script type="text/javascript"> var url = "%%$protocol_url%%/bin/task_status?id=%%$tid%%&cmd=percent_done"; $(function() { var progress = 0; //alert("some value" + value, value); $("#progressbar").progressbar({ progress: 0 }); setTimeout(updateProgress, 500); }); function updateProgress() { var progress; $.get(url, function(data) { // data contains whatever that page returns if (data < 100) { $("#progressbar") .progressbar("option", "value", data); setTimeout(updateProgress, 500); } else { $("#progressbar") .progressbar("option", "value", 100); } }); } Thanks

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  • Rails Binary Stream support

    - by Craig Walker
    I'm going to be starting a project soon that requires support for large-ish binary files. I'd like to use Ruby on Rails for the webapp, but I'm concerned with the BLOB support. In my experience with other languages, frameworks, and databases, BLOBs are often overlooked and thus have poor, difficult, and/or buggy functionality. Does RoR spport BLOBs adequately? Are there any gotchas that creep up once you're already committed to Rails? BTW: I want to be using PostgreSQL and/or MySQL as the backend database. Obviously, BLOB support in the underlying database is important. For the moment, I want to avoid focusing on the DB's BLOB capabilities; I'm more interested in how Rails itself reacts. Ideally, Rails should be hiding the details of the database from me, and so I should be able to switch from one to the other. If this is not the case (ie: there's some problem with using Rails with a particular DB) then please do mention it. UPDATE: Also, I'm not just talking about ActiveRecord here. I'll need to handle binary files on the HTTP side (file upload effectively). That means getting access to the appropriate HTTP headers and streams via Rails. I've updated the question title and description to reflect this.

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  • Multiplatform Installer

    - by Craig
    I am looking for a recommendation on an installer program. The installer needs to support mulitple OS's - Solaris, Linux and Windows. I have three build machines each running one of the OS's. Currently using the same code base - JAVA and C/C++ for all three.

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  • Free en-GB dictionary for spell check in Silverlight

    - by Craig Shearer
    I'm trying to use the Vectorlight spell checker for Silverlight. The demo code comes with the en-US.dic file, but I'm trying to find a compatible one for British English. I have found one here but it doesn't work. The format seems similar to the en-US one, but it just doesn't work (i.e. it doesn't suggest any words).

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  • C#: proprietary DLLs requiring access to my assemblies

    - by Craig Johnston
    My solution uses a proprietary assembly, which when debugging the solution throws an Exception saying it can't find an assembly that is meant to be one of the projects in my solution. I cannot add a reference to the proprietary assembly because all I have is the DLL. When I compile everything into a single application directory and run the app it works fine, but I want to debug. Where should assemblies be placed if you want a proprietary assembly in the solution to see them? I assume the issue is that there is no path specified and it is just looking in a default directory of some kind.

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  • What is the preferred method of refreshing a combo box when the data changes?

    - by Craig Johnston
    What is the preferred method of refreshing a combo box when the data changes? If a form is open and the combo box data is already loaded, how do you refresh the contents of the combo box without the form having to be closed and reloaded? Do you have to do something on the Click event on the combo box? This would seem to be a potential slow down for the app if there is a hit to the database every time someone clicks on a combo box.

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  • Branching Strategies

    - by Craig H
    The company I work for is starting to have issues with their current branching model, and I was wondering what different kinds of branching strategies the community has been exposed to? Are there any good ones for different situations? What does your company use? What are the advantages and disadvantages of them?

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  • Providing an application data update from a website

    - by Craig Johnston
    I need to provide an update to application data as a download from a website. The update would actually just be the replacing of some data files with some updated ones. The update, which I assume would be some sort of setup package type program, would need to be able to do the following: access the file system and registry to determine where files should be copied to supply the files to be copied provide strong security so the data files cannot be downloaded or used by the wrong people What would be best way to achieve all of the above?

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  • rails multiple outer joins syntax

    - by Craig McGuff
    I have the following models user has_many :leave_balances leave_balance belongs_to :user belongs_to :leave_type leave_type has_many :leave_balances I want to output a table format showing user names and their balance by leave type. Not every user can have every balance i.e. outer joins required. I'd like to see something like this: Employee Annual Leave Sick Leave Bob 10 Fred 9 Sara 12 15 I am unsure how to get this out as a single statement? I am thinking something like User.joins(:leave_balances).joins(:leave_type)

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  • rails named_scope issue with eager loading

    - by Craig
    Two models (Rails 2.3.8): User; username & disabled properties; User has_one :profile Profile; full_name & hidden properties I am trying to create a named_scope that eliminate the disabled=1 and hidden=1 User-Profiles. Moreover, while the User model is usually used in conjunction with the Profile model, I would like the flexibility to be able specify this using the :include = :profile syntax. I have the following User named_scope: named_scope :visible, { :joins => "INNER JOIN profiles ON users.id=profiles.user_id", :conditions => ["users.disabled = ? AND profiles.hidden = ?", false, false] } This works as expected when just reference the User model: >> User.visible.map(&:username).flatten => ["user a", "user b", "user c", "user d"] However, when I attempt to include the Profile model: User.visible(:include=> :profiles).profile.map(&:full_name).flatten I get an error that reads: NoMethodError: undefined method `profile' for #<User:0x1030bc828> Am I able to cross model-collection boundaries in this manner?

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  • How can I return a link to an active state after mouseout?

    - by Craig
    var menuEnter = { 'color': hoverColor}; var menuLeave = { 'color': 'C0C0C0'}; new ('div#menu a.level1 span.bg', menuEnter, menuLeave, { transition: Fx.Transitions.linear, duration: 200 }, { transition: Fx.Transitions.sineIn, duration: 500 }); I would like the active menu color to not be affected by the mouseleave var. Thank you.

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  • how to set a cookie in the address bar?

    - by Craig Angus
    I want to add a cookie so that I can exclude my interaction with my website from google analytics (I don't have access to put files on server as is third party application) Is it possible to set a cookie with javascript by executing code in teh address bar of the browser?

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  • How can I programmatically drop a SQL Server database from .NET code

    - by Craig Shearer
    I'm trying to drop a SQL Server database from .NET code. I've tried using the SMO classes but get an exception saying the database is in use. Then I tried executing a query (opening a SqlConnection, executing a SqlCommand), along the lines of: ALTER DATABASE foo SET SINGLE_USER WITH ROLLBACK IMMEDIATE (pause) DROP DATABASE foo But still I get an exception saying the database is in use. How do I do this? (Or, how does SQL Server Management Studio implement the Drop database and close existing connections?)

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  • Migrating from jQuery to Prototype

    - by Craig Gardner
    I'm starting to write code using Prototype coming from a jQuery background. Is there any chart that shows the prototype equivalent method to use in place of specific jQuery methods? More specifically, I'm looking for a $('#my-id').prepend('some stuff') equivalent in prototype?

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  • Validations for a has_many/belongs_to relationship

    - by Craig Walker
    I have a Recipe model which has_many Ingredients (which in turn belongs_to Recipe). I want Ingredient to be existent dependent on Recipe; an Ingredient should never exist without a Recipe. I'm trying to enforce the presence of a valid Recipe ID in the Ingredient. I've been doing this with a validates :recipe, :presence => true (Rails 3) statement in Ingredient. This works fine if I save the Recipe before adding an Ingredient to it's ingredients collection. However, if I don't have explicit control over the saving (such as when I'm creating a Recipe and its Ingredients from a nested form) then I get an error: Ingredients recipe can't be blank I can get around this simply by dropping the presence validation on Ingredient.recipe. However, I don't particularly like this, as it means I'm working without a safety net. What is the best way to enforce existence-dependence in Rails? Things I'm considering (please comment on the wisdom of each): Adding a not-null constraint on the ingredients.recipe_id database column, and letting the database do the checking for me. A custom validation that somehow checks whether the Ingredient is in an unsaved recipe's ingredient collection (and thus can't have a recipe_id but is still considered valid).

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