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  • javascript "associative" array access

    - by cp
    Hello I have a simple simulated aarray with two elements: bowl["fruit"]="apple"; bowl["nuts"]="brazilian"; I can access the value with an event like this: onclick="testButton00_('fruit')">with `testButton00_` function testButton00_(key){ var t = bowl[key]; alert("testButton00_: value = "+t); } However whenever I try to access the aarray from within code with a key that is just a non-explicit string I get undefined. Do I have somehow have to pass the parameter with the escaped 'key'. Any ideas? tia.

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  • Creating a procedure with PLSQL

    - by user1857460
    I am trying to write a PLSQL function that implements a constraint that an employee cannot be both a driver and a mechanic at the same time, in other words, the same E# from TRKEMPLOYEE cannot be in TRKDRIVER and TRKMECHANIC at the same time. The abovementioned tables are something like as follows: TRKEMPLOYEE(E# NUMBER(12) NOT NULL CONSTRAINT TRKEMPLOYEE_PKEY PRIMARY KEY(E#)) TRKDRIVER(E# NUMBER(12) NOT NULL CONSTRAINT TRKDRIVER_PKEY PRIMARY KEY(E#), CONSTRAINT TRKDRIVER_FKEY FOREIGN KEY(E#) REFERENCES TRKEMPLOYEE(E#)) TRKMECHANIC(E# NUMBER(12) NOT NULL CONSTRAINT TRKMECHANIC_PKEY PRIMARY KEY(E#), CONSTRAINT TRKMECHANIC_FKEY FOREIGN KEY(E#) REFERENCES TRKEMPLOYEE(E#)) I have attempted to write a function but keep getting a compile error in line 1 column 7. Can someone tell me why my code doesn't work? My code is as follows CREATE OR REPLACE FUNCTION Verify() IS DECLARE E# TRKEMPLOYEE.E#%TYPE; CURSOR C1 IS SELECT E# FROM TRKEMPLOYEE; BEGIN OPEN C1; LOOP FETCH C1 INTO EMPNUM; IF(EMPNUM IN(SELECT E# FROM TRKMECHANIC )AND EMPNUM IN(SELECT E# FROM TRKDRIVER)) SELECT E#, NAME FROM TRKEMPLOYEE WHERE E#=EMPNUM; ELSE dbms_output.put_line(“OK”); ENDIF EXIT WHEN C1%NOTFOUND; END LOOP; CLOSE C1; END; / Any help would be appreciated. Thanks.

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  • MySQL Returns wrong values on SELECT statement

    - by Andrew K
    All, I'm wondering if this is a MySQL bug, but since I've seen others playing with larger numbers than this, I'm thinking I'm doing something wrong here. Here is my table structure for the table I'm querying: mysql describe ipspace6\G ************* 1. row ************* Field: id Type: decimal(39,0) unsigned Null: NO Key: Default: NULL Extra: ************* 2. row ************* Field: addr Type: decimal(39,0) unsigned Null: NO Key: PRI Default: 0 Extra: ************* 3. row ************* Field: netmask Type: decimal(39,0) unsigned Null: NO Key: Default: 0 Extra: ************* 4. row ************* Field: subnet Type: int(4) Null: NO Key: Default: NULL Extra: Now, I run a simple SELECT statement against the "id" column: mysql SELECT id FROM ipspace6 WHERE id='50552019118453823914642686339427860480'; +----------------------------------------+ | id | +----------------------------------------+ | 50552019118453823730175245602332344320 | | 50552019118453823730175245602332344320 | | 50552019118453823914642686339427860480 | | 50552019118453823914642686339427860480 | +----------------------------------------+ ...What the heck is going on here? Two of these results are valid, and two definitely are not. It's not like I'm doing some super-complex nested query or anything, this is simple stuff, and it's driving me insane. Help, anyone?

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  • Hyphen in Array keys

    - by Vincent
    All, I have an array with hyphens in the key name. How do I extract the value of it in PHP? It returns a 0 to me, if I access like this: print $testarray->test-key; This is how the array looks like testarray[] = {["test-key"]=2,["hotlink"]=1} Thanks

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  • Three-way full outer join in SQLite

    - by Vince
    I have three tables with a common key field, and I need to join them on this key. Given SQLite doesn't have full outer or right joins, I've used the full outer join without right join technique on Wikipedia with much success. But I'm curious, how would one use this technique to join three tables by a common key? What are the efficiency impacts of this (the current query takes about ten minutes)? Thanks!

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  • The system is running in low graphics mode error before ubuntu gets installed

    - by hellodear
    I am using Bootable USB for installing Ubuntu with Windows 8.1. I have put pendrive and then booting my USB. When it shows me to try Ubuntu or install Ubuntu. Then I press Try ubuntu and then it says" "The system is running in low graphics mode". Then I press Ok. Then it shows 4 options. Then again I click Ok. Then it shows a black screen and nothing happens. I have tried all possible answers provided in AU. What should I do? Please help. I am using Windows 8.1 with dedicated graphic card (Video card - AMD Radeon HD 8670M). Installing 12.04 LTS with pre-installe Windows 8.1 in a Dell Laptop 3537 inspiron.

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  • Most proper way to use inherited classes with shared scopes in Mongo?

    - by Trip
    I have the TestVisual class that is inherited by the Game class : class TestVisual < Game include MongoMapper::Document end class Game include MongoMapper::Document belongs_to :maestra key :incorrect, Integer key :correct, Integer key :time_to_complete, Integer key :maestra_id, ObjectId timestamps! end As you can see it belongs to Maestra. So I can do Maestra.first.games But I can not to Maestra.first.test_visuals Since I'm working specifically with TestVisuals, that is ideally what I would like to pull. Is this possible with Mongo. If it isn't or if it isn't necessary, is there any other better way to reach the TestVisual object from Maestra and still have it inherit Game ?

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  • Restricting numeric input javascript problem

    - by neitony
    I'm trying to figure out why my javascript code is not restricting numeric input. Here's the code below: (function(){ if(window.addEventListener) window.addEventListener("load",init,false); else if(window.attachEvent) window.attachEvent("onload",init); function init() { var keytest = document.getElementById("keytest"); function numericinput(event) { var e = event || window.event; var key = e.charcode || e.keyCode; var regex =/^\d+\.?\d{4}$/; key = String.fromCharCode(key); if (!regex.test(key)) { alert("something"); //if(e.preventDefault) e.preventDefault(); //if(e.returnValue) e.returnValue = false; //return false; } else { //return true; alert("something else"); } } if(keytest.addEventListener) keytest.addEventListener("keypress",numericinput,false); else { keytest.onkeypress = numericinput(); } } })();

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  • what's a good way to implement something that looks like Dictionary<string, string, Dictionary<strin

    - by jcollum
    I've got a data structure that is Key, Value, OtherValues(key, Value). So the OtherValues are attached to the first Key and aren't always there. I can do this as Dictionary<Key, ValueAndListOfOptionalValues> where ValueAndListOfOptionalValues is a class with a string and a Dictionary<string, string>. I'm wondering if that's really the best way to do it? Sometimes I think that I'm missing some important classes in the Generics namespace, maybe there are better classes out there that I'm not aware of.

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  • Need help with cURL and POSTing in PHP

    - by alex
    I need to post to a payment gateway. The example PHP script for the gateway simply sets the XML like this curl_setopt($ch, CURLOPT_POSTFIELDS, $xmlRequest); // $xmlRequest is just a string of XML In all of my experience, generally you need to use an array with key/values or a string similar to GET params. I am using Kohana, and tracked down a cURL module. It accepts the POST key/values as an array only. Now, I could ditch the module and throw some cURL straight in, but I am using this module fine all throughout the site, so would prefer to use it here. So, my question is, how does that first one work? Does it just POST the whole thing without any named key? Is there a default key I could use for an array to get the module to work?

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  • Why PHP Error: Call to a member function set_prefix() on a non-object

    - by Rebol Tutorial
    I got this error Fatal error: Call to a member function set_prefix() on a non-object in /home/reboltutorial/reboltutorial.com/wp-settings.php on line 254 line 254 contains: $prefix = $wpdb->set_prefix($table_prefix); // set up global tables This occurs if I try to call index_wordpress() instead of calling these two lines define('WP_USE_THEMES', true); require('./wp-blog-header.php'); so this doesn't work: <?php function index_wordpress() { define('WP_USE_THEMES', true); require('./wp-blog-header.php'); } ?> <?php if(!function_exists('apache_request_headers')) { function apache_request_headers() { $headers = array(); foreach($_SERVER as $key => $value) { if(substr($key, 0, 5) == 'HTTP_') { $headers[str_replace(' ', '-', ucwords(str_replace('_', ' ', strtolower(substr($key, 5)))))] = $value; } } return $headers; } } function getCurrentPageUrl() { $pageURL = 'http'; if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";} $pageURL .= "://"; if ($_SERVER["SERVER_PORT"] != "80") { $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"]; } else { $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"]; } return $pageURL; } $a = apache_request_headers(); $pos = strrpos($a["User-Agent"], "REBOL"); if ($pos === false) { index_wordpress(); } else { if ($_SERVER['REMOTE_ADDR'] != "69.163.203.14") { $command= './cgi-bin/index.cgi '. '"' . getCurrentPageUrl() . '"'; echo system($command); } else { index_wordpress(); } } ?> while this works: <?php if(!function_exists('apache_request_headers')) { function apache_request_headers() { $headers = array(); foreach($_SERVER as $key => $value) { if(substr($key, 0, 5) == 'HTTP_') { $headers[str_replace(' ', '-', ucwords(str_replace('_', ' ', strtolower(substr($key, 5)))))] = $value; } } return $headers; } } function getCurrentPageUrl() { $pageURL = 'http'; if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";} $pageURL .= "://"; if ($_SERVER["SERVER_PORT"] != "80") { $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"]; } else { $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"]; } return $pageURL; } $a = apache_request_headers(); $pos = strrpos($a["User-Agent"], "REBOL"); if ($pos === false) { define('WP_USE_THEMES', true); require('./wp-blog-header.php'); } else { if ($_SERVER['REMOTE_ADDR'] != "69.163.203.14") { $command= './cgi-bin/index.cgi '. '"' . getCurrentPageUrl() . '"'; echo system($command); } else { define('WP_USE_THEMES', true); require('./wp-blog-header.php'); } } ?>

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  • stuck in busybox after update

    - by Lyra500
    I should start out by saying that I am not very tech savvy and have done my best to understand what is going on here from reading other people's posts and have fumbled my way through several attempted fixes without getting anywhere... I run ubuntu 12.04 on an admittedly cheap laptop from ebuyer and in spite of being cheap and not a brand laptop I have never had any major problems with it. Since updating to 12.04 when it was released the boot-up process has always been slow. Logging in takes about 30secs longer than it used to and if I closed my laptop and opened it again instead of being met with a login screen I'd be met with a black screen with a white mouse. As all of these problems had a behavior-changing fix (don't close laptop, patiently wait for login, etc.) I didn't think of reporting any of the issues. Last night when the update manager prompted me that there were updates available I duly did them as I usually do. At the time a bug report came up and I cannot remember what it said but I reported the bug as I was prompted to do. Then this morning when I started up my laptop it went through the usual sequence, GRUB, purple screen with 'ubuntu' etc. and then when it tried to boot up it went into BusyBox and I have not been able to do anything to solve this. I have tried going into the GRUB menu and starting previous versions but I come to the same point - busybox. I have borrowed another rather elderly laptop with Windows Vista to try and download Boot Repair and Ubuntu and burn them onto CD. I tried downloading boot repair five times, to laptop, CD and USB. Every time it would download and burn fine but then the windows laptop would tell me that 1% did not download properly and my laptop would not run the USB or CD upon booting. I then tried to download ubuntu and make a livecd, twice, but again was told that 1% did not download properly and again my laptop will not run ubuntu from the CD upon booting even if/when I went into the f2 menu and changed the menu priority (if that's what you call it) for booting up to make sure it was definitely trying the USB/CD first. This is the message I get from busybox: BusyBox v1.18.5 (Ubuntu 1:1.18.5-1ubuntu4) built-in shell (ash) Enter 'help' for a list of built-in commands I have tried 'exit' but it mentions things about 'kernal panic' and 'tried to quit init!' and 'can't find /root/dev/console : no such file'. I know that the problem is probably caused by a problem with a kernal caused by the update last night, but I couldn't honestly tell you exactly what was updated and without being able to boot from a livecd I'm not sure how to go about fixing this. As I said, I am not tech savvy and have done what I can to try and find a solution to the problem but I'm starting to feel like I'm out of options. Does anyone have any ideas?

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  • Failed to load url in Dom Document?

    - by Lakhan
    im trying to get latitude and longtitude from google map by giving address. But its giving error.when i directly copy url to browser url bar.its giving correct result.If anybody know the answer .Plz reply. Thanx in advance Here is my code. <?php $key = '[AIzaSyAoPgQlfKsBKQcBGB01cl8KmiPee3SmpU0]'; $opt = array ( 'address' => urlencode('Kolkata,India, ON') , 'output' => 'xml' ); $url = 'http://maps.google.com/maps/geo?q='.$opt['address'].'&output='.$opt['output'].'&oe=utf8&key='.$key; $dom = new DOMDocument(); $dom->load($url); $xpath = new DomXPath($dom); $xpath->registerNamespace('ge', 'http://earth.google.com/kml/2.0'); $statusCode = $xpath->query('//ge:Status/ge:code'); if ($statusCode->item(0)->nodeValue == '200') { $pointStr = $xpath->query('//ge:coordinates'); $point = explode(",", $pointStr->item(0)->nodeValue); $lat = $point[1]; $lon = $point[0]; echo '<pre>'; echo 'Lat: '.$lat.', Lon: '.$lon; echo '</pre>'; } ?> Following error has occured: Warning: DOMDocument::load(http://maps.google.com/maps/geo? q=Kolkata%252CIndia%252C%2BON&output=xml&oe=utf8&key=%5BAIzaSyAoPgQlfKsBKQcBGB01cl8KmiPee3SmpU0%5D) [domdocument.load]: failed to open stream: HTTP request failed! HTTP/1.0 400 Bad Request in C:\xampp\htdocs\draw\draw.php on line 19 Warning: DOMDocument::load() [domdocument.load]: I/O warning : failed to load external entity "http://maps.google.com/maps/geo?q=Kolkata%252CIndia%252C%2BON&output=xml&oe=utf8&key=%5BAIzaSyAoPgQlfKsBKQcBGB01cl8KmiPee3SmpU0%5D" in C:\xampp\htdocs\draw\draw.php on line 19 Notice: Trying to get property of non-object in C:\xampp\htdocs\draw\draw.php on line 26

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  • Dictionary/Hashmap......... what on earth is happening?

    - by Tom
    else if (!registryData.ContainsKey(kyInvolved)) { keyInvolved = new RegistryKy(kyInvolved); lock (registryDataLock) { registryData.Add(kyInvolved, keyInvolved); } processInvolved = new Proces(procInvolved); keyInvolved.addProcessToDict(processInvolved); } kyInvolved is a String which represents a registry key. keyInvolved is the actual registry key object. I'm being told that im adding a key which already exists, yet i have already checked to see whether it is in there or not???

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  • Best keyboards for emacs?

    - by catphive
    For emacs users out there, what are your recommended keyboards? Bonus points for keyboards that: Have no capslock key. Instead, a control key in that position. Alt keys that are closer to the center, and easier to use with meta key combos. I find alt keys too far to the left to be a bit awkward to hit with my thumb in some key combos. Help ergonomically with emacs in other ways. I'm not a huge fan of model M style high and clacky keys. I instead prefer laptop style flat keys; however, I'm not disqualifying either category.

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  • smarter "reverse" of a dictionary in python (acc for some of values being the same)?

    - by mrkafk
    def revert_dict(d): rd = {} for key in d: val = d[key] if val in rd: rd[val].append(key) else: rd[val] = [key] return rd >>> revert_dict({'srvc3': '1', 'srvc2': '1', 'srvc1': '2'}) {'1': ['srvc3', 'srvc2'], '2': ['srvc1']} This obviously isn't simple exchange of keys with values: this would overwrite some values (as new keys) which is NOT what I'm after. If 2 or more values are the same for different keys, keys are supposed to be grouped in a list. The above function works, but I wonder if there is a smarter / faster way?

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  • install 64 bit as dual boot with 32 bit

    - by profgeorgefhart
    I downloaded Ubuntu 12.10 - bit .iso onto a bootable USB and want to put it on to my 32 bit 12.10 system as a dual boot, using a totally separate 1 Tb disk [which already has data on it]. However, when I go to restart and hit F8 fir BIOS set-up, I can change all the settings except the boot search order. Is there some other way to force the startup to read the USB first? Is the fact that I cannot change the search order to do with the fact that the 32 bit OS was 'Installed in legacy mode' not 'EFI? How can I rectify this? (This might be related -- might I need to update my BIOS for my Intel DX38BT motherboard? I think their last upgrade was 2009.)

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  • NHibernate SchemaUpdate adding existing foreign keys again?

    - by afsharm
    I'm using SchemaUpdate to synchronize my hbms with existing database. Database has recently created based on hbms and is completely up-to-date. But SchemaUpdate generates all foreign key constraints again. For example suppose you have Student and Teacher. Student has association to Teacher with name ArtTeacher. ArtTeacher is a foreign key from Student to Teacher. Suppose database is up-to-date and currently holde Student, Teacher and their foreign key relation. So HBM and Database are equivalent. Know SchemaUpdate must not do anything but when I see its generated scripts, it re-produce that foreign key again. Why this happens? Is there any way to avoid it?

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  • 12.04: I need a new network card - and I think this one may work?

    - by Jason Malone
    I found this list of compatible USB wireless network adaptors: http://www.cyberciti.biz/tips/linux-usb-wireless-compatibility-adapter-list.html Listed here is the Belkin F5D8053. I'm looking for a store to buy a suitable adaptor in locally and I can't find that particular adaptor - but I can see a Belkin F7D4101az. I think this is simply a newer model - but a Google search for "ubuntu belkin f7d4101az" brings no results - not even people trying to get it to work. Nothing. So I didn't want to purchase it without being sure. There's really only one PC shop that sells this sort of stuff around here - so here's a list of all my available options: http://www.pcworld.co.uk/gbuk/wireless-cards-adapters/xx_7088_70095_xx_xx/xx-criteria.html I'd really like to get one today, because I have a lot of work to do and don't really want to have to wait a week for a new adaptor - I spent 6 or 7 hours last night trying to get my Dell 1450 to work with no luck. Any help would be much appreciated.

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  • MySQL query problem

    - by Luke
    Ok, I have the following problem. I have two InnoDB tables: 'places' and 'events'. One place can have many events, but event can be created without entering place. In this case event's foreign key is NULL. Simplified structure of the tables looks as follows: CREATE TABLE IF NOT EXISTS `events` ( `id` int(11) unsigned NOT NULL AUTO_INCREMENT, `name` varchar(255) COLLATE utf8_bin NOT NULL, `places_id` int(9) unsigned DEFAULT NULL, PRIMARY KEY (`id`), KEY `fk_events_places` (`places_id`), ) ENGINE=InnoDB; ALTER TABLE `events` ADD CONSTRAINT `events_ibfk_1` FOREIGN KEY (`places_id`) REFERENCES `places` (`id`) ON DELETE CASCADE ON UPDATE NO ACTION; CREATE TABLE IF NOT EXISTS `places` ( `id` int(9) unsigned NOT NULL AUTO_INCREMENT, `name` varchar(255) COLLATE utf8_bin NOT NULL, PRIMARY KEY (`id`), ) ENGINE=InnoDB; Question is, how to construct query which contains name of the event and name of the corresponding place (or no value, in case there is no place assigned?). I am able to do it with two queries, but then I am visibly separating events which have place assigned from the ones that are without place. Help really appreciated.

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  • problme with javascript map/object

    - by akshay
    I am using javascript map to store keys and values.Later on I check if specified key is present in map or not, but it sometimes gives correct result but sometimes it dont.I tried to print the map using console.log(mapname), it shows all keys, but i i try to check if some specified key is presnt sometimes it gives wrong answer. Am using following code: //following code is called n times in loop with different/same vales of x myMap : new Object(); var key = x ; //populated dynamically actually myMap[key] ="dummyval"; if(myIdMap[document.getElementById("abc").value.trim()]!=null) alert('present' ); else alert('not present'); What can be the possible problem?

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  • hash fragments and collisions cont.

    - by Mark
    For this application I've mine I feel like I can get away with a 40 bit hash key, which seems awfully low, but see if you can confirm my reasoning (I want a small key because I want a small filename and the key will be converted to a filename): (Note: only accidental collisions a concern - no security issues.) A key point here is that the population in question is divided into groups, and a collision is only relevant if it occurs within the same group. A "group" is a directory on a user's system (the contents of files are hashed and a collision is only relevant if it occurs for files within the same directory). So with speculating roughly 100,000 potential users, say 2^17, that corresponds to 2^18 "groups" assuming 2 directories per user on average. So with a 40 bit key I can expect 2^(20+9) files created (among all users) before a collision occurs for some user somewhere. (Or IOW 2^((40+18)/2), due to the "birthday effect".) That's an average 4096 unique files created per user, for 2^17 users, before a single collision occurs for some user somewhere. And then that long again before another collision occurs somewhere (right?)

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