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How to determine when Fragment becomes visible in ViewPager
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I have found that the setUserVisibleHint method gets called BEFORE the onCreateView gets called and this makes it difficult to track any initialization.
– AndroidDev
Jan 25 '15 at 15:23
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Convert camelCaseText to Sentence Case Text
... I dig the use of spaces in text.replace, I've been padding function calls with 2+ arguments with spaces for readability too
– rkd
Jan 8 '17 at 20:44
8
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How to generate the “create table” sql statement for an existing table in postgreSQL
...s query might work for you (change 'tablename' with whatever your table is called):
SELECT
'CREATE TABLE ' || relname || E'\n(\n' ||
array_to_string(
array_agg(
' ' || column_name || ' ' || type || ' '|| not_null
)
, E',\n'
) || ...
Use JavaScript to place cursor at end of text in text input element
...false);
}else{
elem.attachEvent("on" + event,
function(){ return(fn.call(elem, window.event)); });
}}
var element = document.getElementById('el');
addEvent(element,'focus',function(){
var that = this;
setTimeout(function(){ that.selectionStart = that.selectionEnd = 10000; }, 0);
}...
How to debug Lock wait timeout exceeded on MySQL?
...nnodb status\g. Also, if your db is on an Amazon RDS instance, you can use CALL mysql.rds_kill(<thread_id>); to kill threads. It has higher permissions I think, because it allowed me to kill more processes than plain kill <thread_id>; - note these should be run within MySQL CLI
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Listening for variable changes in JavaScript
...ave an array of listeners instead of a single one and then instead of just calling this.aListener(val), you would have to loop through all listener functions and call each one passing val. Typically, the method is called addListener instead of registerListener.
– Akira
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How to get Core Data object from specific Object ID?
... Great answer, thanks for clarification about objectWithId: - the need of calling insertObject first to prevent a raise of exception on attempt to fire a fault was indeed unobvious to me.
– Stanislav Pankevich
Jul 31 '13 at 17:52
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hadoop No FileSystem for scheme: file
...stem, hadoop-hdfs for DistributedFileSystem) each contain a different file called org.apache.hadoop.fs.FileSystem in their META-INFO/services directory. This file lists the canonical classnames of the filesystem implementations they want to declare (This is called a Service Provider Interface implem...
Django: Set foreign key using integer?
...oyee.type is not accurate afterwards in recent Django versions, even after calling employee.save() (it holds its old value). Using it would of course defeat the purpose of the above optimisation, but I would prefer an accidental extra query to being incorrect. So be careful, only use this when you a...
Rails: Adding an index after adding column
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For references you can call
rails generate migration AddUserIdColumnToTable user:references
If in the future you need to add a general index you can launch this
rails g migration AddOrdinationNumberToTable ordination_number:integer:index
Gene...