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  • How to make multi-function linux device work in windows

    - by Naze Kimi
    I was able to compile my Linux device to a composite gadget.(Serial + Mass Storage) When I plug this device on a Linux PC, The OS was able to detect and use both function. But when I plug it on Windows, it is just detected as a "Multifunction Composite Gadget" and I can't use it as neither a Mass Storage or a Serial Device. How do I go about making this work in Windows. Is making a customized driver really essential for this task? If so, how is this accomplished the least "painful" way?

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  • Row index of pickerview is not displaying correctly.

    - by iSharreth
    I had used images in pickerview. But the row number is not displaying correctly. Anyone please help. I used the below code: - (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view { NSLog(@"Row : %i",row); return [customPickerArray objectAtIndex:row]; }

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  • Multi-Column Primary Key in MySQL 5

    - by Kaji
    I'm trying to learn how to use keys and to break the habit of necessarily having SERIAL type IDs for all rows in all my tables. At the same time, I'm also doing many-to-many relationships, and so requiring unique values on either column of the tables that coordinate the relationships would hamper that. How can I define a primary key on a table such that any given value can be repeated in any column, so long as the combination of values across all columns is never repeated exactly?

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  • MySQL multi CREATE TABLE syntax help?

    - by rlb.usa
    Hi guys, I'm trying to write a MySQL script that creates several tables. I have: CREATE TABLE `DataBase1`.`tbl_this`( ... ); CREATE TABLE `DataBase1`.`tbl_that`( ... ); ... (14 more) ... BUT, only the first CREATE TABLE statement is executed. I get no syntax errors. Erm, am I missing the MSSQL equivalent of GO ? What am I doing wrong here; how do I get this baby to run all the tables?

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  • OpenGL index buffer object with additional data

    - by muksie
    I have a large set of lines, which I render from a vertex buffer object using glMultiDrawArrays(GL_LINE_STRIP, ...); This works perfectly well. Now I have lots of vertex pairs which I also have to visualize. Every pair consists of two vertices on two different lines, and the distance between the vertices is small. However, I like to have the ability to draw a line between all vertex pairs with a distance less than a certain value. What I like to have is something like a buffer object with the following structure: i1, j1, r1, i2, j2, r2, i3, j3, r3, ... where the i's and j's are indices pointing to vertices and the r's are the distances between those vertices. Thus every vertex pair is stored as a (i, j, r) tuple. Then I like to have a (vertex) shader which only draws the vertex pairs with r < SOME_VALUE as a line. So my question is, what is the best way to achieve this?

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  • mysql update unique index

    - by atno
    Is there a way to say UPDATE items SET qty=10 WHERE **unique key** instead of saying UPDATE items SET qty=10 WHERE userID=1 AND listID=10 and itemID=100 on the following table? CREATE TABLE IF NOT EXISTS `items` ( `userID` int(20) NOT NULL, `listID` int(20) NOT NULL, `itemID` int(20) NOT NULL, `qty` int(10) NOT NULL, UNIQUE KEY `unique` (`userID`,`listID`,`itemID`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

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  • fastest way to check to see if a certain index in a linq statement is null

    - by tehdoommarine
    Basic Details I have a linq statement that grabs some records from a database and puts them in a System.Linq.Enumerable: var someRecords = someRepoAttachedToDatabase.Where(p=>true); Suppose this grabs tons (25k+) of records, and i need to perform operations on all of them. to speed things up, I have to decided to use paging and perform the operations needed in blocks of 100 instead of all of the records at the same time. The Question The line in question is the line where I count the number of records in the subset to see if we are on the last page; if the number of records in subset is less than the size of paging - then that means there are no more records left. What I would like to know is what is the fastest way to do this? Code in Question int pageSize = 100; bool moreData = true; int currentPage = 1; while (moreData) { var subsetOfRecords = someRecords.Skip((currentPage - 1) * pageSize).Take(pageSize); //this is also a System.Linq.Enumerable if (subsetOfRecords.Count() < pageSize){ moreData = false;} //line in question //do stuff to records in subset currentPage++; } Things I Have Considered subsetOfRecords.Count() < pageSize subsetOfRecords.ElementAt(pageSize - 1) == null (causes out of bounds exception - can catch exception and set moreData to false there) Converting subsetOfRecords to an array (converting someRecords to an array will not work due to the way subsetOfRecords is declared - but I am open to changing it) I'm sure there are plenty of other ideas that I have missed.

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  • Execute another program in multi-threaded program

    - by Gary
    Hi, Just wondering how if it's possible to execute another program in a thread and send information to/get information from it. Essentially the same concept as with a child process and using pipes to communicate - however I don't want to use fork. I can't seem to find whether it's possible to do this, any help would be appreciated. Thanks

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  • Converting part of a multi-purpose XML file to RSS using XSL

    - by Nate McCloud
    I have an XML file that I use for storing and displaying recipes that I collect, but that same XML file also has updates for the site at the top of it. How would I, say, use Recipes.xsl to transform Recipes.xml for display as an actual website, and use RecipesRSS.xsl to transform Recipes.xml into Recipes.rss? Currently, my XML file is formatted something like this: <book> <updates> <update when="2010-04-19"> <format> <update>Formatting updates here, if any. Otherwise, omit the Format section.</update> ... </format> <recipes> <update>Recipe updates here, if any. Otherwise, omit the Recipes section.</update> ... </recipes> </update> ... </updates> <recipe name="Recipe Name"> <from>Recipe source</from> <category>Recipe category</category> <ingredients> <ingredient>Recipe ingredient</ingredient> ... </ingredients> <instructions> <step>Recipe instructions go here.</step> ... </instructions> <notes> <note>Additional notes go here, if any. Otherwise, Notes section is omitted.</note> ... </notes> </recipe> ... </book> Any help would be greatly appreciated.

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  • PostgreSQL: How to index all foreign keys?

    - by biggusjimmus
    I am working with a large PostgreSQL database, and I are trying to tune it to get more performance. Our queries and updates seem to be doing a lot of lookups using foreign keys. What I would like is a relatively simple way to add Indexes to all of our foreign keys without having to go through every table (~140) and doing it manually. In researching this, I've come to find that there is no way to have Postgres do this for you automatically (like MySQL does), but I would be happy to hear otherwise there, too.

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  • Check if key exists in $_SESSION by building index string

    - by Kim
    I need to check if a key exists and return its value if it does. Key can be an array with subkeys or endkey with a value. $_SESSION['mainKey']['testkey'] = 'value'; var_dump(doesKeyExist('testkey')); function doesKeyExist($where) { $parts = explode('/',$where); $str = ''; for($i = 0,$len = count($parts);$i<$len;$i++) { $str .= '[\''. $parts[$i] .'\']'; } $keycheck = '$_SESSION[\'mainKey\']' . $str; if (isset(${$keycheck})) { return ${$keycheck}; } // isset($keycheck) = true, as its non-empty. actual content is not checked // isset(${$keycheck}) = false, but should be true. ${$var} forces a evaluate content // isset($_SESSION['mainKey']['testkey']) = true } What am I doing wrong ? Using PHP 5.3.3.

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  • C: using clock() to measure time in multi-threaded programs

    - by Shinka
    I've always used clock() to measure how much time my application took from start to finish, as; int main(int argc, char *argv[]) { const clock_t START = clock(); // ... const double T_ELAPSED = (double)(clock() - START) / CLOCKS_PER_SEC; } Since I've started using POSIX threads this seem to fail. It looks like clock() increases N times faster with N threads. As I don't know how many threads are going to be running simultaneously, this approach fails. So how can I measure how much time has passed ?

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  • plot multi graphs with 2 y axis in 1 graph

    - by lytheone
    Hello, Currently I have a a text file with data at the first row is formatted as follow: time;wave height 1;wave height 2;....... I have column until wave height 19 and rows total 4000 rows. Data in the first column is time in second. From 2nd column onwards, it is wave height elevation which is in meter. I would like to plot the follow: ![alt text][1] on the x axis is time. the left hand side is wave height in m and on the right hand side is the distance between each measurment in a model. inside the graph there are 4 plots, each plot is repersent waveight 1, wave height 2etc at a defined distance related to the right hand side y asix. How would you code this in matlab? I am a begineer, please if you could, it will be very useful to give a bit more explain in your answer! Thank you!!!!!!!!!!

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  • Multi language CMS?

    - by Adam
    Is there any CMS such as expression engine or wordpress that allows a user to click a button and convert all the text to another language (it would have to be human generated otherwise it has too many mistakes probably). I'd like to know if there are any good solutions out there that work for real world use, in like business company websites.

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  • Text input for multi-valued attribute

    - by Sean
    I need to create an input form that will allow a user to enter any number of values for a particular attribute. I've tried several approaches, all of which seem to have various levels of failure. The latest model bean looks something like: public class Product { private String name; private String[] tags; ...accessors... } The input fields look something like: <h:inputText id="name" value="#{product.name}"></h:inputText> <h:inputText id="tag0" value="#{product.tag[0]}"></h:inputText> My plan was to allow the user is to use javascript to add additional form fields as needed. This type of setup gives me a 'Target Unreachable' error. What am I missing? I am using JSF 1.1 on WebSphere 6.1

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  • Create dropdown from multi array + PHP class

    - by chris
    Hi there, Well, I am writing class that creates a DOB selection dropdown. I am having figure out the dropdown(), it seems working but not exactly. Code just creates one drop down, and under this dropdown all day, month and year data are in one selection. like: <label> <sup>*</sup>DOB</label> <select name="form_bod_year"> <option value=""/> <option selected="" value="0">1</option> <option value="1">2</option> <option value="2">3</option> <option value="3">4</option> <option value="4">5</option> <option value="5">6</option> .. <option value="29">30</option> <option value="30">31</option> <option value="1">January</option> <option value="2">February</option> .. <option value="11">November</option> <option value="12">December</option> <option selected="" value="0">1910</option> <option value="1">1911</option> .. <option value="98">2008</option> <option value="99">2009</option> <option value="100">2010</option> </select> Here is my code, I wonder that why all datas are in one selection. It has to be tree selction - Day:Month:Year. //dropdown connector class DropDownConnector { var $dropDownsDatas; var $field_label; var $field_name; var $locale; function __construct($dropDownsDatas, $field_label, $field_name, $locale) { $this-dropDownsDatas = $dropDownsDatas; $this-field_label = $field_label; $this-field_name = $field_name; $this-locale = $locale; } function getValue(){ return $_POST[$this-field_name]; } function dropdown(){ $selectedVal = $this-getValue($this-field_name); foreach($this-dropDownsDatas as $keys=$values){ foreach ($values as $key=$value){ $selected = ($key == $selectedVal ? "selected" : "" ); $options .= sprintf('%s',$key,$value); }; }; return $select_start = "$this-field_desc".$options.""; } function getLabel(){ $non_req = $this-getNotRequiredData(); $req = in_array($this-field_name, $non_req) ? '' : '*'; return $this-field_label ? $req . $this-field_label : ''; } function __toString() { $id = $this-field_name; $label = $this-getLabel(); $field = $this-dropdown(); return 'field_name.'"'.$label.''.$field.''; } } function generateForm ($lang,$country_list,$states_list,$days_of_month,$month_list,$years){ $xx = array( 'form_bod_day' = $days_of_month, 'form_bod_month' = $month_list, 'form_bod_year' = $years); echo $dropDownConnector = new DropDownConnector($xx,'DOB','bod','en-US'); } // Call php class to use class on external functionss. $avInq = new formGenerator; $lang='en-US'; echo generateForm ($lang,$country_list,$states_list,$days_of_month,$month_list,$years);

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  • concatenate multi values in one record without duplication

    - by mikehjun
    I have a dbf table like below which is the result of one to many join from two tables. I want to have unique zone values from one Taxlot id field. table name: input table tid ----- zone 1 ------ A 1 ------ A 1 ------ B 1 ------ C 2 ------ D 2 ------ E 3 ------ C Desirable output table table name: input table tid ----- zone 1 ------ A, B, C 2 ------ D, E 3 ------ C I got some help but couldn't make it to work. inputTbl = r"C:\temp\input.dbf" taxIdZoningDict = {} searchRows = gp.searchcursor(inputTbl) searchRow = searchRows.next() while searchRow: if searchRow.TID in taxIdZoningDict: taxIdZoningDict[searchRow.TID].add(searchRow.ZONE) else: taxIdZoningDict[searchRow.TID] = set() #a set prevents dulpicates! taxIdZoningDict[searchRow.TID].add(searchRow.ZONE) searchRow = searchRows.next() outputTbl = r"C:\temp\output.dbf" gp.CreateTable_management(r"C:\temp", "output.dbf") gp.AddField_management(outputTbl, "TID", "LONG") gp.AddField_management(outputTbl, "ZONES", "TEXT", "", "", "20") tidList = taxIdZoningDict.keys() tidList.sort() #sorts in ascending order insertRows = gp.insertcursor(outputTbl) for tid in tidList: concatString = "" for zone in taxIdZoningDict[tid] concatString = concatString + zone + "," insertRow = insertRows.newrow() insertRow.TID = tid insertRow.ZONES = concatString[:-1] insertRows.insertrow(insertRow) del insertRow del insertRows

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  • How to load a table view when coming to back with out selection index

    - by ratnasomu
    Hellow all, I am using navigation controller and have table views inside views. when i select any cell it it will navigate to another view. so,from there if i click back button it come sto previous view.But,it showing the cell which is selected previously. I dnt want this .it should not show which cell we selected previously. Could any one help me how to get this. Thanks.

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  • fetching from a specified index in a set using python

    - by tipu
    I'm using pagination on a values from a set. So what this results in is me needing to get values from x to x + 20 which can be in the middle of a set with 50,000 entries. Is it possible that I can fetch these values by grabbing by the space in the set? Would it make more sense to do result = [] my_dict = dict(very_big_set) for i in range(30000, 30020) result.append(my_dict[i])

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  • Output a php multi-dimensional array to a html table

    - by Fireflight
    I have been banging my head against the wall with this one for nearly a week now, and am no closer than I was the first day. I have a form that has 8 columns and a variable number of rows which I need to email to the client in a nicely formatted email. The form submits the needed fields as a multidimensional array. Rough example is below: <input name="order[0][topdiameter]" type="text" id="topdiameter0" value="1" size="5" /> <input name="order[0][bottomdiameter]" type="text" id="bottomdiameter0" value="1" size="5" /> <input name="order[0][slantheight]" type="text" id="slantheight0" value="1" size="5" /> <select name="order[0][fittertype]" id="fittertype0"> <option value="harp">Harp</option> <option value="euro">Euro</option> <option value="bulbclip">Regular</option> </select> <input name="order[0][washerdrop]" type="text" id="washerdrop0" value="1" size="5" /> <select name="order[0][fabrictype]" id="fabrictype"> <option value="linen">Linen</option> <option value="pleated">Pleated</option> </select> <select name="order[0][colours]" id="colours0"> <option value="beige">Beige</option> <option value="white">White</option> <option value="eggshell">Eggshell</option> <option value="parchment">Parchment</option> </select> <input name="order[0][quantity]" type="text" id="quantity0" value="1" size="5" /> This form is formatted in a table, and rows can be added to it dynamically. What I've been unable to do is get a properly formatted table out of the array. This is what I'm using now (grabbed from the net). <?php if (isset($_POST["submit"])) { $arr= $_POST['order'] echo '<table>'; foreach($arr as $arrs) { echo '<tr>'; foreach($arrs as $item) { echo "<td>$item</td>"; } echo '</tr>'; } echo '</table>; }; ?> This works perfectly for a single row of data. If I try submitting 2 or more rows from the form then one of the columns disappears. I'd like the table to be formatted as: | top | Bottom | Slant | Fitter | Washer | Fabric | Colours | Quantity | ------------------------------------------------------------------------ |value| value | value | value | value | value | value | value | with additional rows as needed. But, I can't find any examples that will generate that type of table! It seems like this should be something fairly straightforward, but I just can't locate an example that works the way I need it too.

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  • How to use NGramTokenizerFactory or NGramFilterFactory?

    - by user572485
    Hi, Recently, I am studying how to store and index using Solr. I want to do facet.prefix search. With whitespace tokenizer, "Where are you" will be splited into three words and indexed. If I search facet.prefix="where are", no result will be returned. I google and found NGramFilterFactory can help me. But when I apply this filter factory, I found the result is "w, h, e, ..., wh, ..", which split the sentence by character, not by token word. I use the parameters maxGramSize and minGramSize, set to 1 and 3. Does the NGramFilterFactory work right? Should I add some other parameters? Is there some other filter factories which can help me? Thanks!

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  • Rails: include index with fields_for form helper

    - by Patrick Oscity
    i'm trying to build two models from one form by using the fields_for method. my code looks like this: <% for scale in @event.scales %> <% f.fields_for "scale[]", scale do |scale_form| %> <p> Scale<br /> <%= scale_form.label :name %> <%= scale_form.text_field :name %> <%= scale_form.label :price %> <%= scale_form.text_field :price %> </p> <% end %> <% end %> but unfortunately the output html is missing the id's of the scales: <p> Scale<br /> <label for="event_scale__name">Name</label> <input id="event_scale__name" name="event[scale][][name]" size="30" type="text" /> <label for="event_scale__price">Price</label> <input id="event_scale__price" name="event[scale][][price]" size="30" type="text" /> </p> ... here's the corresponding controller and model: class EventsController < ApplicationController ... def new @event = Event.new @providers = Provider.find(:all, :order => :name) 3.times { @event.scales.build } respond_to do |format| format.html end end ... end class Event < ActiveRecord::Base has_many :scales ... end what am i doing wrong?

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  • multi divs centered

    - by user1319385
    I have 2 divs with 3 divs inside them, all 2 wrapped around one big div. I try and center it and its not working. Here is my code: <div stye="margin-left:auto; margin-right:auto; width: 1210px;"> <div id="left" style=" float:left; width: 606px; height: 506px;"> <div style="top:0px; float:left; width:300px; border: 2px solid #FF0; height:502px; text-align:center; font-family: Myriad Pro, Arial, sans-serif; color:#FFF;"><h1>A picture of a cool guy wearing our shirt will go in here.</h1></div> <div style="top:0px; float:left; width:300px; border: 2px solid #FF0; border-left:0px; height:200px; text-align:center; font-family: Myriad Pro, Arial, sans-serif; color:#FFF;"><h1>A product image will go in here.</h1></div> <div style="top:0px; float:left; width:300px; border: 2px solid #FF0;border-top:0px; border-left:0px; height:300px; text-align:center; font-family: Myriad Pro, Arial, sans-serif; color:#FFF;"><h1>A tight product image will go in here.</h1></div> </div> <div id="left" style="float:left; width: 604px; height: 506px;"> <div style="top:0px; float:right; width:300px; border: 2px solid #FF0; border-left:0px; height:502px; text-align:center; font-family: Myriad Pro, Arial, sans-serif; color:#FFF;"><h1>A picture of a cool guy wearing our shirt will go in here.</h1></div> <div style="top:0px; float:left; width:300px; border: 2px solid #FF0; border-left:0px; height:200px; text-align:center; font-family: Myriad Pro, Arial, sans-serif; color:#FFF;"><h1>A product image will go in here.</h1></div> <div style="top:0px; float:left; width:300px; border: 2px solid #FF0;border-top:0px; border-left:0px; height:300px; text-align:center; font-family: Myriad Pro, Arial, sans-serif; color:#FFF;"><h1>A tight product image will go in here.</h1></div> </div> </div>

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