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Liquibase lock - reasons?
...l="CONTINUE">
<not><sequenceExists sequenceName="SEQUENCE_NAME_SEQ" /></not>
</preConditions>
<createSequence sequenceName="SEQUENCE_NAME_SEQ"/>
</changeSet>
A work around is using plain SQL to check this instead:
<changeSet author="user...
How to reset a timer in C#?
... The other issue is that only woeks with Forms.Timer, and my app has no GUI (Application.Start() with no parameters), so I THINK that the Threading.Timer class is better for other reasons, but good point.
– Matthew Scharley
Jun 25 '09 at 5:27
...
Array.push() if does not exist?
... it doesn't then just push the item into the array:
var newItem = "NEW_ITEM_TO_ARRAY";
var array = ["OLD_ITEM_1", "OLD_ITEM_2"];
array.indexOf(newItem) === -1 ? array.push(newItem) : console.log("This item already exists");
console.log(array)
...
On delete cascade with doctrine2
...de to the foreign key column in the database:
@ORM\JoinColumn(name="father_id", referencedColumnName="id", onDelete="CASCADE")
I also want to point out that the way you have your cascade={"remove"} right now, if you delete a Child object, this cascade will remove the Parent object. Clearly not wh...
What is the Swift equivalent of -[NSObject description]?
...ayground and indeed it doesn't work right now. Good it hear it works in a app.
– Tod Cunningham
Jun 23 '14 at 16:05
P...
Run a Docker image as a container
...must docker commit. You can use the NAME in the commit (e.g. docker commit _NAME_ _imagename_)
– Andy
Aug 24 '15 at 18:56
9
...
How to Animate Addition or Removal of Android ListView Rows
...imation anim = AnimationUtils.loadAnimation(
GoTransitApp.this, android.R.anim.slide_out_right
);
anim.setDuration(500);
listView.getChildAt(index).startAnimation(anim );
new Handler().postDelayed(new Runnable() {
public void run() {
FavouritesMan...
autolayout - make height of view relative to half superview height
...youtConstraint
constraintsWithVisualFormat:@"V:[topLayoutGuide]-0-[_view1]-0-[_view2(==_view1)]-0-[bottomLayoutGuide]"
options:0
metrics:nil
views:viewsDict]];
...
Post JSON using Python Requests
...ost('http://httpbin.org/post', json={"key": "value"})
>>> r.status_code
200
>>> r.json()
{'args': {},
'data': '{"key": "value"}',
'files': {},
'form': {},
'headers': {'Accept': '*/*',
'Accept-Encoding': 'gzip, deflate',
'Connection': 'close',
...
Ruby on Rails generates model field:type - what are the options for field:type?
...ils model generator:
$ rails g model wheel car:references
That produces app/models/wheel.rb:
class Wheel < ActiveRecord::Base
belongs_to :car
end
And adds the following migration:
class CreateWheels < ActiveRecord::Migration
def self.up
create_table :wheels do |t|
t.refere...