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Rails 3: “field-with-errors” wrapper changes the page appearance. How to avoid this?
... which fields belong to what attribute of the resource your are making the form for: f.label :password and f.password_field :password in the @resource.errors there would be a [:password] error set.
– Mosselman
Mar 21 '12 at 16:16
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Automatically capture output of last command into a variable using Bash?
...e`
echo $v
From Bash Beginners Guide,
When the old-style backquoted form of substitution is used, backslash retains its literal meaning except when followed by "$", "`", or "\". The first backticks not preceded by a backslash terminates the command substitution. When using the "$(COMMAND)" fo...
Create ArrayList from array
...s return value as is. It breaks the List template, so always use it in the form indicated here, even if it does seem redundant. Good answer.
– Adam
Jan 23 '13 at 3:28
84
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Mixing a PHP variable with a string literal
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$bucket = '$node->' . $fieldname . "['und'][0]['value'] = " . '$form_state' . "['values']['" . $fieldname . "']";
print $bucket;
yields:
$node->mindd_2_study_status['und'][0]['value'] = $form_state['values']
['mindd_2_study_status']
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Difference between Fact table and Dimension table?
...se structure that can be queried in a very efficient way.
On its simplest form, it contains a fact table (Example: StoreSales) and a one or more dimension tables. Each Dimension entry has 0,1 or more fact tables associated with it (Example of dimension tables: Geography, Item, Supplier, Customer, T...
MySQL, better to insert NULL or empty string?
I have a form on a website which has a lot of different fields. Some of the fields are optional while some are mandatory. In my DB I have a table which holds all these values, is it better practice to insert a NULL value or an empty string into the DB columns where the user didn't put any data?
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getting date format m-d-Y H:i:s.u from milliseconds
I am trying to get a formatted date, including the microseconds from milliseconds.
15 Answers
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Best practices for storing postal addresses in a database (RDBMS)?
...re frustrating than dealing with a website that is oriented around only US-format addresses. It's a little rude at first, but becomes a serious problem when the validation is also over-zealous.
If you are concerned with going global, the only advice I have is to keep things free-form. Different cou...
C: differences between char pointer and array [duplicate]
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True, but it's a subtle difference. Essentially, the former:
char amessage[] = "now is the time";
Defines an array whose members live in the current scope's stack space, whereas:
char *pmessage = "now is the time";
Defines a pointer that lives in the current scope's stack...
In C#, how to check if a TCP port is available?
...ports. There are lots of good objects available in the System.Net.NetworkInformation namespace.
Use the IPGlobalProperties object to get to an array of TcpConnectionInformation objects, which you can then interrogate about endpoint IP and port.
int port = 456; //<--- This is your value
bool...