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• Combining the UNIQUE and CHECK constraints

  - by Bobby

  I have a table with columns a b and c, and if c is false then I only want to allow insertions if columns a and b are unique, but if c is true then a and b do not need to be unique. Example: There can only be one (foo, bar, false) in the table, but no limit on how many (foo, bar, true) there can be. I tried something like CONSTRAINT blah UNIQUE (a,b) AND CHECK (C is TRUE) but I can't figure out the correct syntax.

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• Why is it called CopyConstruct_i_ble?

  - by FredOverflow

  As a non-native english speaker, I was wondering why the concept of being able to be constructed by the copy constructor is called CopyConstructible (as opposed to CopyConstructable). What are the exact rules that require an i instead of an a?

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• Types from multiple assemblies and namespaces in nhibernate mapping files

  - by Ben Aston

  You can specify the namespace and assembly to use types from at the top of HBM files: <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="MyCorp.MyAssembly" namespace="MyCorp.MyAssembly.MyNamespace"> Can you use types from multiple assemblies / namespaces within the same mapping file, and if so what is the syntax for doing so?

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• Rails migration for change column

  - by b_ayan

  We have script/generate migration add_fieldname_to_tablename fieldname:datatype syntax for adding new columns to a model. On the same line, do we have a script/generate for changing the datatype of a column? Or should I write sql directly into my vanilla migration? I want to change a column from datetime to date. Thanks

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• Reverse PInvoke and create a full unmanaged C# program

  - by Fire-Dragon-DoL

  I know this is a strange question but the idea is simple: I prefer C# syntax rather than C++: -Setters and getters directly inside a property -interfaces -foreach statement -possibility to declare an implicit cast operator other small things... What I really don't know is if is possible to import a c++ dll (expecially std libraries) in C# if I don't use any namespace (even System) The idea is just to write a program using everything that you will normally use in C++ (nothing from CLR so), even printf for example Thanks for any answer

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• Zend framework on shared hosting

  - by Stefano

  I have a problem. I'm trying to deploy my zend framework app on a shared hosting. In local, with xampp was everything ok, but on shared hosting I received the following message: Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /application/public/index.php on line 40. The line 40 is: $application-bootstrap()-run();. Any idea?

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• url rewriting index.php

  - by bean

  i have urls like http://mysite.com/index.php?p=resources http://mysite.com/index.php?p=resources&s=view&id=938 but i want urls like http://mysite.com/resources http://mysite.com/resources/view/938 instead of making hundreds of rewrite rules i wonder if it would be possible to just have one? Ive head this is possible by "getting the uri and splitting it into parts" and then just add a rewrite rule for index.php but how? could someone give an example or link a tutorial

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• How to extend the Eclipse Java Editor to add coloured overlays

  - by Gavin Clarke

  I have an idea for an Eclipse plugin which I've been toying with. I need to be able to extend the Eclipse Java Editor component and add coloured overlays to the code based on pluggable external metrics. Unfortunately there doesn't appear to be any kind of syntax highlighting extension point. Does anyone know how I might be able to extend the exisitng eclipse Java Editor to add custom highlighting rules? Bear in mind I'm new to Eclipse plugin programming so please give as much detail as possible.

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• postgresql INSERT ... RETURNING query keeps failing?

  - by KnockKnockWhosThere

  The error message is kinda vague... The query below works on one server, but fails on another: INSERT INTO searches (status, uid, datecreated, searchname, options) VALUES (0, 1, NOW(), 'TEST', '16') RETURNING sid; And I get this error: Query failed: ERROR: syntax error at or near "RETURNING" Am I missing something here?

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• sql server modify error

  - by Jaspal

  hi, i m not able to modify table in SQL server. i m new to databases. use work go alter table employee modify id varchar(20) error message is- Msg 102, Level 15, State 1, Line 1 Incorrect syntax near 'modify' here is an screenshot thanks

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• Which is better a switch statement or if-else if-else statement?

  - by TheGNUGuy

  I am just wondering if one is better (i.e. more efficient). To me the seem to be the same other than the syntax.

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• untar from run command in fibre

  - by Shah.Bhavesh

  i want to untar file from source to destination with below statement `def untar(source,destination): run("tar -xf {0} {1}".format(source,destination)) ` i am getting Error C:\Users\test\Desktop\fabric>fab -H user@host-p pass untar:source =/shared/sample.tar,destination=/home/ Traceback (most recent call last): File "C:\Users\shasmukh\AppData\Roaming\Python\Python27\site-packages\fabric\m ain.py", line 630, in main docstring, callables, default = load_fabfile(fabfile) File "C:\Users\shasmukh\AppData\Roaming\Python\Python27\site-packages\fabric\m ain.py", line 163, in load_fabfile imported = importer(os.path.splitext(fabfile)[0]) File "C:\Users\shasmukh\Desktop\fabric\fabfile.py", line 11 def copy(source,destination) ^ SyntaxError: invalid syntax

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• Difference between Expression<Func<>> and Func<>

  - by Sir Psycho

  As an example, why do most LINQ operators accept Expression<Func<TSource>> and it's equivalent Func<TSource> What's the benefit/reason for using the generic Expression class instead of straight up lamda syntax?

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• Preserving CSS styles with Javascript

  - by Eber Freitas Dias

  Hey guys, I have a web service where people can edit their pages CSS, but I have a bar on the footer of that page that I want to make consistend on every page... People are, right now, able to "remove" it with CSS and I really didn't want to go and parse the CSS to remove rules related to that bar... Is there a way to preserve the styles or re-aply them after load to keep the bar always visible? Thanks in advanced!

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• SQL Server 2005. Full Text Search. Need Thesaurus working with NEAR/AND/OR keywords

  - by user305924

  Hi, does anyone know if it's possible to do a thesaurus search together with NEAR or AND/OR keywords. Here is an example of the type of query I want to run: SELECT Title, RANK FROM Item INNER JOIN CONTAINSTABLE(Item, Title, 'FORMSOF(Thesaurus, "red" NEAR "wine")') AS KEY_TBL ON Item.ItemID = KEY_TBL.[KEY] ORDER BY RANK DESC ....But I get the error message: Syntax error near 'NEAR' in the full-text search condition 'FORMSOF(Thesaurus, "red" NEAR "wine")'.

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• jQuery validatoin plugin - site wide settings

  - by Daveo

  I want to have site wide default settings for all jQuery validation uses on my site, I want every form to use the below settings, but then on a per form basis change the rules and messages. Is this possible? $('#myForm').validate({ errorClass: 'field-validation-error', errorElement: 'span', errorPlacement: function(error, element) { element.next('span').remove(); error.insertAfter( element ) .removeClass('field-validation-error') .addClass('ui-state-error'); }, success: function(label) { label.remove(); } });

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• Stop the user entering ' char

  - by Phil

  I have a search page where I would like to stop the user entering a ' into textboxes, or replace it with a suitable character. Can anyone help me achieve this in asp.net vb ? For example if a user searches for O'Reilly the search crashes with error: Line 1: Incorrect syntax near 'Reilly'. Unclosed quotation mark before the character string ' '. Thanks!

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• Casting Between Data Types in C#

  - by Jimbo

  I have (for example) an object of type A that I want to be able to cast to type B (similar to how you can cast an int to a float) Data types A and B are my own. Is it possible to define the rules by which this casting occurs? Example int a = 1; float b = (float)a; int c = (int)b;

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• Best web application language for Delphi Developers

  - by DelphiDev

  I'm Delphi developer, and I would like to build few web applications, I know about Intraweb, but I think it's not a real tool for web development, maybe for just intranet applications so I'm considering PHP, Python or ruby, I prefer python because it's better syntax than other( I feel it closer to Delphi), also I want to deploy the application to shared hosting, specially Linux. so as Delphi developer, what do you choose to develop web application?

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• PHP Disabling ipv6

  - by Dave C

  Hello, It seems that I need to somehow disable IPv6 on my php pages, but I am not sure how to do this. I think I have to add --disable-ipv6 somewhere into my INI file... this doesnt look like proper syntax though. I am trying to solve the following bug: http://bugs.php.net/45519 Does anyone know where to put this?

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• Flex: Using NumericStepper as an itemEditor in a DataGrid

  - by AlexH

  I am trying to make one field in a datagrid editable with a numeric stepper. My current attempts look like they are working, but the dataProvider is not actually being changed. Based on what I have read in a billion different places, the syntax should be < mx:DataGridColumn dataField="a" itemRenderer="mx.controls.NumericStepper" rendererIsEditor="true" editorDataField="value" / > I have tried several variations on this theme, and nothing seems to work. What am I missing?

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• Comparison of web template engines

  - by Mark

  Post a snippet of code from your favorite templating engine, with the name of the engine and a link to its homepage; show off its basic syntax and maybe some neat features about it that makes it unique. Hopefully this will give people an idea of what's out there and make it easier for them to decide on an engine.

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• Override System Preference Pane?

  - by DisappointedIdealist

  Is there a way to override / disable a system preference pane? I'm wanting to put an application together that would disable or override the Energy Saver preference pane, and would put it's own rules in place for putting a machine into standby, turning off the monitor, or other various energy saving activities.

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• SQL error with script to create

  - by PapaDaniel

  I used the SQL Server management studio on a table with Create Script to New and did minor changes. Give me an error "Incorrect syntax near '('" for the "(" after "WITH" /* EventType Table Creation */ CREATE TABLE [EventType] ( [pkEventID] [int] IDENTITY(1,1) NOT NULL, [Description] [nvarchar](50) NOT NULL, [BeginDate] [datetime] NOT NULL, [EndDate] [datetime] NOT NULL, [Comments] [nvarchar](500) NOT NULL, CONSTRAINT [PK_EventType] PRIMARY KEY CLUSTERED ( [pkEventID] ASC ) WITH ( PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON ) ON [PRIMARY] ) ON [PRIMARY] GO

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• Selecting a column that is also a keyword in MySQL

  - by randall123

  For some reason, the developers at a new company I'm working for decided to name their columns "ignore" and "exists". Now when I run MySQL queries with those words in the where clause, I get a syntax error; however, I can't seem to figure out how to reference those columns without running into an error. I tried setting them as strings, but that doesn't make any sense. Help? Also, is there a term for this kind of mismatch?

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