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Add Foreign Key to existing table
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To add a foreign key (grade_id) to an existing table (users), follow the following steps:
ALTER TABLE users ADD grade_id SMALLINT UNSIGNED NOT NULL DEFAULT 0;
ALTER TABLE users ADD CONSTRAINT fk_grade_id FOREIGN KEY (grade_id) REFERENCES grades(id);
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sqlite database default time value 'now'
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i believe you can use
CREATE TABLE test (
id INTEGER PRIMARY KEY AUTOINCREMENT,
t TIMESTAMP
DEFAULT CURRENT_TIMESTAMP
);
as of version 3.1 (source)
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imp...
Why doesn't RecyclerView have onItemClickListener()?
...Subject<String> onClickSubject = PublishSubject.create();
@Override
public void onBindViewHolder(final ViewHolder holder, int position) {
final String element = mDataset[position];
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
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twitter bootstrap typeahead ajax example
...hat isnt just a string array? i need to so a value to the user and use an id to do further processing. Is that possible without pickingup a custom fork?
– Anton
Sep 9 '12 at 23:35
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android.widget.Switch - on/off event listener?
I would like to implement a switch button, android.widget.Switch (available from API v.14).
10 Answers
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Validate that a string is a positive integer
... Infinity && String(n) === str && n >= 0;
}
function gid(id) {
return document.getElementById(id);
}
function test(str, expect) {
var result = isNormalInteger(str);
console.log(
str + ": " +
(result ? "Yes" : "No") +
(expect === undefi...
Use C++ with Cocoa Instead of Objective-C?
... MyClass {
MyCPPClass *cppInstance;
}
@end
@implementation MyClass
- (id)init {
if(self = [super init]) {
cppInstance = new MyCPPClass();
}
return self;
}
- (void) dealloc {
if(cppInstance != NULL) delete cppInstance;
[super dealloc];
}
- (void)callCpp {
cppInsta...
List of Timezone ID's for use with FindTimeZoneById() in C#?
... please point me to a complete list of all the timezones referenced by the id expected in TimeZoneInfo.FindTimeZoneById() ? I can't find a list anywhere and I've looked through the .NET documentation.
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Override browser form-filling and input highlighting with HTML/CSS
...ut:-webkit-autofill {
background-color: #FAFFBD !important;
}
1) as #id-styles are even more important than .class styles, the following may work:
#inputId:-webkit-autofill {
background-color: white !important;
}
2) if that won't work, you can try to set the style via javascript program...
How do I apply a CSS class to Html.ActionLink in ASP.NET MVC?
... MVC 3 with Razor:
@Html.ActionLink("Delete", "DeleteList", "List", new { ID = item.ID, ListID = item.id }, new {@class= "delete"})
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