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  • How to retrieve row count of one-to-many relation while also including original entity?

    - by kaa
    Say I have two entities Foo and Bar where Foo has-many Bar's, class Foo { int ImportantNumber { get; set; } IEnumerable<Bar> Bars { get; set; } } class FooDTO { Foo Foo { get; set; } int BarCount { get; set; } } How can I efficiently sum up the number of Bars per Foo in a DTO using a single query, preferrably only with the Criteria interface. I have tried any number of ways to get the original entity out of a query with ´SetProjection´ but no luck. The current theory is to do something like SELECT Foo.*, BarCounts.counts FROM Foo LEFT JOIN ( SELECT fooId, COUNT(*) as counts FROM Bar GROUP BY fooId ) AS BarCounts ON Foo.id=BarCounts.fooId but with Criterias, and I just can't seem to figure out how.

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  • Mapping interface or abstract class component

    - by Yann Trevin
    Please consider the following simple use case: public class Foo { public virtual int Id { get; protected set; } public virtual IBar Bar { get; set; } } public interface IBar { string Text { get; set; } } public class Bar : IBar { public virtual string Text { get; set; } } And the fluent-nhibernate map class: public class FooMap : ClassMap<Foo> { public FooMap() { Id(x => x.Id); Component(x => x.Bar, m => { m.Map(x => x.Text); }); } } While running any query with configuration, I get the following exception: NHibernate.InstantiationException: "Cannot instantiate abstract class or interface: NHMappingTest.IBar" It seems that NHibernate tries to instantiate an IBar object instead of the Bar concrete class. How to let Fluent-NHibernate know which concrete class to instantiate when the property returns an interface or an abstract base class? EDIT: Explicitly specify the type of component by writing Component<Bar> (as suggested by Sly) has no effect and causes the same exception to occur. EDIT2: Thanks to vedklyv and Paul Batum: such a mapping should be soon is now possible.

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  • Why isn't jQuery automatically appending the JSONP callback?

    - by Aseem Kishore
    The $.getJSON() documentation states: If the specified URL is on a remote server, the request is treated as JSONP instead. See the discussion of the jsonp data type in $.ajax() for more details. The $.ajax() documentation for the jsonp data type states (emphasis mine): Loads in a JSON block using JSONP. Will add an extra "?callback=?" to the end of your URL to specify the callback. So it seems that if I call $.getJSON() with a cross-domain URL, the extra "callback=?" parameter should automatically get added. (Other parts of the documentation support this interpretation.) However, I'm not seeing that behavior. If I don't add the "callback=?" explicitly, jQuery incorrectly makes an XMLHttpRequest (which returns null data since I can't read the response cross-domain). If I do add it explicitly, jQuery correctly makes a <script> request. Here's an example: var URL = "http://www.geonames.org/postalCodeLookupJSON" + "?postalcode=10504&country=US"; function alertResponse(data, status) { alert("data: " + data + ", status: " + status); } $.getJSON(URL, alertResponse); // alerts "data: null, status: success" $.getJSON(URL + "&callback=?", alertResponse); // alerts "data: [object Object], status: undefined" So what's going on? Am I misunderstanding the documentation or forgetting something? It goes without saying that this isn't a huge deal, but I'm creating a web API and I purposely set the callback parameter to "callback" in the hopes of tailoring it nicely to jQuery usage. Thanks!

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  • Select the latest record for each category linked available on an object

    - by Simpleton
    I have a tblMachineReports with the columns: Status(varchar),LogDate(datetime),Category(varchar), and MachineID(int). I want to retrieve the latest status update from each category for every machine, so in effect getting a snapshot of the latest statuses of all the machines unique to their MachineID. The table data would look like Category - Status - MachineID - LogDate cata - status1 - 001 - date1 cata - status2 - 002 - date2 catb - status3 - 001 - date2 catc - status2 - 002 - date4 cata - status3 - 001 - date5 catc - status1 - 001 - date6 catb - status2 - 001 - date7 cata - status2 - 002 - date8 catb - status2 - 002 - date9 catc - status2 - 001 - date10 Restated, I have multiple machines reporting on multiple statuses in this tblMachineReports. All the rows are created through inserts, so their will obviously be duplicate entries for machines as new statuses come in. None of the columns can be predicted, so I can't do any ='some hard coded string' comparisons in any part of the select statement. For the sample table I provided, the desired results would look like: Category - Status - MachineID - LogDate catc - status2 - 002 - date4 cata - status3 - 001 - date5 catb - status2 - 001 - date7 cata - status2 - 002 - date8 catb - status2 - 002 - date9 catc - status2 - 001 - date10 What would the select statement look like to achieve this, getting the latest status for each category on each machine, using MS SQL Server 2008? I have tried different combinations of subqueries combined with aggregate MAX(LogDates)'s, along with joins, group bys, distincts, and what-not, but have yet to find a working solution.

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  • UINavigationBar multi-line title

    - by benasher44
    Is there a straightforward way of overriding the titleView of the current navigation bar item in a navigation bar within a navigation controller? I've tried creating a new UIView and replacing the titleView property of topView with my own UIVIew with no success. Basically, I want a multi-line title for the navigation bar title. Any suggestions?

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  • Django QuerySet ordering by number of reverse ForeignKey matches

    - by msanders
    I have the following Django models: class Foo(models.Model): title = models.CharField(_(u'Title'), max_length=600) class Bar(models.Model): foo = models.ForeignKey(Foo) eg_id = models.PositiveIntegerField(_(u'Example ID'), default=0) I wish to return a list of Foo objects which have a reverse relationship with Bar objects that have a eg_id value contained in a list of values. So I have: id_list = [7, 8, 9, 10] qs = Foo.objects.filter(bar__eg_id__in=id_list) How do I order the matching Foo objects according to the number of related Bar objects which have an eg_id value in the id_list?

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  • Import AppleScript methods in another AppleScript?

    - by DASKAjA
    Is there a way to use defined AppleScript methods in other AppleScripts which reference the original AppleScript with something similar to import (f.e. in PHP)? I wrote a methode to set Skype status and mood-text: on setSkypeStatus(status, mood_text) tell application "System Events" set skypeRunning to count (every process whose name is "Skype") if skypeRunning > 0 then --only set status if skype is running tell application "Skype" set myStatus to "SET USERSTATUS " & status set myMood to "SET PROFILE MOOD_TEXT " & mood_text send command myStatus script name "AppleScript" send command myMood script name "AppleScript" return skypeRunning end tell else return skypeRunning end if end tell end setSkypeStatus now I'm searching for something like import skype_methods.scpt. Is there such a functionality. I can't something related with Google.

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  • How can I push a new view controller onto a different nav controllers stack and switch to it?

    - by Derek
    I have a Tab Bar Controller created in Interface Builder Within the Tab Bar are 4 Navigation Controllers. Each controller functions separately and perfectly (yay!) What I need to be able to do is a push a view controller onto a different nav controllers stack and switch the focus onto the appropriate tab bar item (so that the user moves sideways (to a different tab) and up (to a new view) at the same time). This is my first time working with a tab bar controller, and while it's been simple to this point, figuring this out is giving me fits. Any tips you can toss my way would be much appreciated.

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  • Sql Query - Selecting rows where user can be both friend and user

    - by Gublooo
    Hey Sorry the title is not very clear. This is a follow up to my earlier question where one of the members helped me with a query. I have a following friends Table Friend friend_id - primary key user_id user_id_friend status The way the table is populated is - when I send a friend request to John - my userID appears in user_id and Johns userID appears in user_id_friend. Now another scenario is say Mike sends me a friend request - in this case mike's userID will appear in user_id and my userID will appear in user_id_friend So to find all my friends - I need to run a query to find where my userID appears in both user_id column as well as user_id_friend column What I am trying to do now is - when I search for user say John - I want all users Johns listed on my site to show up along with the status of whether they are my friend or not and if they are not - then show a "Add Friend" button. Based on the previous post - I got this query which does part of the job - My example user_id is 1: SELECT u.user_id, f.status FROM user u LEFT OUTER JOIN friend f ON f.user_id = u.user_id and f.user_id_friend = 1 where u.name like '%' So this only shows users with whom I am friends where they have sent me request ie my userID appears in user_id_friend. Although I am friends with others (where my userID appears in user_id column) - this query will return that as null To get those I need another query like this SELECT u.user_id, f.status FROM user u LEFT OUTER JOIN friend f ON f.user_id_friend = u.user_id and f.user_id = 1 where u.name like '%' So how do I combine these queries to return 1 set of users and what my friendship status with them is. I hope my question is clear Thanks

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  • Binding data to subgrid

    - by bhargav
    i have a jqgrid with a subgrid...the databinding is done in javascript like this <script language="javascript" type="text/javascript"> var x = screen.width; $(document).ready(function () { $("#projgrid").jqGrid({ mtype: 'POST', datatype: function (pdata) { getData(pdata); }, colNames: ['Project ID', 'Due Date', 'Project Name', 'SalesRep', 'Organization:', 'Status', 'Active Value', 'Delete'], colModel: [ { name: 'Project ID', index: 'project_id', width: 12, align: 'left', key: true }, { name: 'Due Date', index: 'project_date_display', width: 15, align: 'left' }, { name: 'Project Name', index: 'project_title', width: 60, align: 'left' }, { name: 'SalesRep', index: 'Salesrep', width: 22, align: 'left' }, { name: 'Organization:', index: 'customer_company_name:', width: 56, align: 'left' }, { name: 'Status', index: 'Status', align: 'left', width: 15 }, { name: 'Active Value', index: 'Active Value', align: 'left', width: 10 }, { name: 'Delete', index: 'Delete', align: 'left', width: 10}], pager: '#proj_pager', rowList: [10, 20, 50], sortname: 'project_id', sortorder: 'asc', rowNum: 10, loadtext: "Loading....", subGrid: true, shrinkToFit: true, emptyrecords: "No records to view", width: x - 100, height: "100%", rownumbers: true, caption: 'Projects', subGridRowExpanded: function (subgrid_id, row_id) { var subgrid_table_id, pager_id; subgrid_table_id = subgrid_id + "_t"; pager_id = "p_" + subgrid_table_id; $("#" + subgrid_id).html("<table id='" + subgrid_table_id + "' class='scroll'></table><div id='" + pager_id + "' class='scroll'></div>"); jQuery("#" + subgrid_table_id).jqGrid({ mtype: 'POST', postData: { entityIndex: function () { return row_id } }, datatype: function (pdata) { getactionData(pdata); }, height: "100%", colNames: ['Event ID', 'Priority', 'Deadline', 'From Date', 'Title', 'Status', 'Hours', 'Contact From', 'Contact To'], colModel: [ { name: 'Event ID', index: 'Event ID' }, { name: 'Priority', index: 'IssueCode' }, { name: 'Deadline', index: 'IssueTitle' }, { name: 'From Date', index: 'From Date' }, { name: 'Title', index: 'Title' }, { name: 'Status', index: 'Status' }, { name: 'Hours', index: 'Hours' }, { name: 'Contact From', index: 'Contact From' }, { name: 'Contact To', index: 'Contact To' } ], caption: "Action Details", rowNum: 10, pager: '#actionpager', rowList: [10, 20, 30, 50], sortname: 'Event ID', sortorder: "desc", loadtext: "Loading....", shrinkToFit: true, emptyrecords: "No records to view", rownumbers: true, ondblClickRow: function (rowid) { } }); jQuery("#actiongrid").jqGrid('navGrid', '#actionpager', { edit: false, add: false, del: false, search: false }); } }); jQuery("#projgrid").jqGrid('navGrid', '#proj_pager', { edit: false, add: false, del: false, excel: true, search: false }); }); function getactionData(pdata) { var project_id = pdata.entityIndex(); var ChannelContact = document.getElementById('ctl00_ContentPlaceHolder2_ddlChannelContact').value; var HideCompleted = document.getElementById('ctl00_ContentPlaceHolder2_chkHideCompleted').checked; var Scm = document.getElementById('ctl00_ContentPlaceHolder2_chkScm').checked; var checkOnlyContact = document.getElementById('ctl00_ContentPlaceHolder2_chkOnlyContact').checked; var MerchantId = document.getElementById('ctl00_ContentPlaceHolder2_ucProjectDetail_hidden_MerchantId').value; var nrows = pdata.rows; var npage = pdata.page; var sortindex = pdata.sidx; var sortdir = pdata.sord; var path = "project_brow.aspx/GetActionDetails" $.ajax({ type: "POST", url: path, data: "{'project_id': '" + project_id + "','ChannelContact': '" + ChannelContact + "','HideCompleted': '" + HideCompleted + "','Scm': '" + Scm + "','checkOnlyContact': '" + checkOnlyContact + "','MerchantId': '" + MerchantId + "','nrows': '" + nrows + "','npage': '" + npage + "','sortindex': '" + sortindex + "','sortdir': '" + sortdir + "'}", contentType: "application/json; charset=utf-8", success: function (data, textStatus) { if (textStatus == "success") obj = jQuery.parseJSON(data.d) ReceivedData(obj); }, error: function (data, textStatus) { alert('An error has occured retrieving data!'); } }); } function ReceivedData(data) { var thegrid = jQuery("#actiongrid")[0]; thegrid.addJSONData(data); } function getData(pData) { var dtDateFrom = document.getElementById('ctl00_ContentPlaceHolder2_dtDateFrom_textBox').value; var dtDateTo = document.getElementById('ctl00_ContentPlaceHolder2_dtDateTo_textBox').value; var Status = document.getElementById('ctl00_ContentPlaceHolder2_ddlStatus').value; var Type = document.getElementById('ctl00_ContentPlaceHolder2_ddlType').value; var Channel = document.getElementById('ctl00_ContentPlaceHolder2_ddlChannel').value; var ChannelContact = document.getElementById('ctl00_ContentPlaceHolder2_ddlChannelContact').value; var Customers = document.getElementById('ctl00_ContentPlaceHolder2_txtCustomers').value; var KeywordSearch = document.getElementById('ctl00_ContentPlaceHolder2_txtKeywordSearch').value; var Scm = document.getElementById('ctl00_ContentPlaceHolder2_chkScm').checked; var HideCompleted = document.getElementById('ctl00_ContentPlaceHolder2_chkHideCompleted').checked; var SelectedCustomerId = document.getElementById("<%=hdnSelectedCustomerId.ClientID %>").value var MerchantId = document.getElementById('ctl00_ContentPlaceHolder2_ucProjectDetail_hidden_MerchantId').value; var nrows = pData.rows; var npage = pData.page; var sortindex = pData.sidx; var sortdir = pData.sord; PageMethods.GetProjectDetails(SelectedCustomerId, Customers, KeywordSearch, MerchantId, Channel, Status, Type, dtDateTo, dtDateFrom, ChannelContact, HideCompleted, Scm, nrows, npage, sortindex, sortdir, AjaxSucceeded, AjaxFailed); } function AjaxSucceeded(data) { var obj = jQuery.parseJSON(data) if (obj != null) { if (obj.records!="") { ReceivedClientData(obj); } else { alert('No Data Available to Display') } } } function AjaxFailed(data) { alert('An error has occured retrieving data!'); } function ReceivedClientData(data) { var thegrid = jQuery("#projgrid")[0]; thegrid.addJSONData(data); } </script> as u can see projgrid is my parent grid and action grid is my subgrid to be shown onclicking the '+' symbol Projgrid is binded and being displayed but when it comes to subgrid im able to get the data but the problem comes at the time of binding data to subgrid which is done in function named ReceivedData where you can see like this function ReceivedData(data) { var thegrid = jQuery("#actiongrid")[0]; thegrid.addJSONData(data); } "data" is what i wanted exactly but it cannot be binded to actiongrid which is the subgrid Thanx in advance for help

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  • iPhone - Dismiss modal view by a UITabBarController

    - by ncohen
    Hi everyone, I've got into a very strange problem. I created my own UITabBarController to customize it and it works pretty well... except for the modal views. When I dismiss the modal view (present/dismiss from the UITabBarController) with an animation, it waits until the animation did finished and goes to the first controller of the tab bar! Why does the controller change? and how can I fix it? Thanks PS: My UITabBarController view is on the main window and has a UITabBar on it. The controllers (which are managed by the tab bar) are on the main window over the tab bar controller view with a shorter height. When I present the modal view, I bring the tab bar controller view to front.

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  • Tuning recommendations from mysqltuner.pl: query_cache_limit

    - by knorv
    The mysqltuner.pl script gives me the following recommendation: query_cache_limit (> 1M, or use smaller result sets) And MySQL status output shows: mysql> SHOW STATUS LIKE 'Qcache%'; +-------------------------+------------+ | Variable_name | Value | +-------------------------+------------+ | Qcache_free_blocks | 12264 | | Qcache_free_memory | 1001213144 | | Qcache_hits | 3763384 | | Qcache_inserts | 54632419 | | Qcache_lowmem_prunes | 0 | | Qcache_not_cached | 6656246 | | Qcache_queries_in_cache | 55280 | | Qcache_total_blocks | 122848 | +-------------------------+------------+ 8 rows in set (0.00 sec) From the status output above, how can I judge whether or nor the suggested increase in query_cache_limit is needed?

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  • Phonegap Screenshot plugin in Cordova 2.0.0

    - by ObjectiveJ
    I have set up the screenshot plugin from github, located here: https://github.com/phonegap/phonegap-plugins/tree/master/Android/Screenshot I set it up as instructed and with 1.8.1 of cordova. It worked and the screenshot was saved to the phone. However it fails with cordova 2.0.0. Screenshot.java code: https://github.com/phonegap/phonegap-plugins/blob/master/Android/Screenshot/src/org/apache/cordova/Screenshot.java Screenshot.js code: https://github.com/phonegap/phonegap-plugins/blob/master/Android/Screenshot/www/Screenshot.js Due to the advice of a very clever man called Simon MacDonald, I removed line 31 and 38 from the JS file shown above. However when I try to use the screenshot plugin with cordova 2.0.0 I receive these errors: ERROR: org.json.JSONException: Value undefined of type java.lang.String cannot be converted to JSONArray. Error: Status=8 Message=JSON error file:///android_asset/www/cordova-2.0.0.js: Line 938 : Error: Status=8 Message=JSON error Error: Status=8 Message=JSON error at file:///android_asset_/www/cordova-2.0.0.js:938 line 938 of the cordova.js is: // If error, then display error else { console.log("Error: Status="+v.status+" Message="+v.message); but im almost certain this is a compatibility error. Does anyone know a fix for this, or even a reason. Im abit lost. Any help is appreciated. I call the screenshot.js with this code: function takeScreenShot() { cordovaRef.exec("Screenshot.saveScreenshot"); } Any help massively appreciated.

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  • Using undecorated UiNavigationBar

    - by Nicsoft
    Hello, I would like to use UINavigationBar without decoration. I.e. I would like to create my own custom buttons and link those to the same actions (e.g. back) as the navigation items were linked to and have no bar presented at the top. I was told that one should use navigation bar even though graphically you should design the interaction yourself. How do I go about doing this? I am quite new to navigation bar to start with... If there is some tutorial you can direct me to it would be great (that is for using nav-bar without decoration). Thanks in advance! Regards, Niklas

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  • GSM Modem Wavecom 900

    - by Sopolin
    Dear All, I have one GSM Modem Series 900. I want to test it for sending and receiving message to mobile. I can connect with this modem, but when I put my SIM Card and I type AT command like here: AT: Status "OK" AT+CPIN?: Status "+CPIN: PH-NET PIN" AT+CPIN="xxxx": Status "Error" I don't know why it can't connect with the SIM Card. So do you any solution to help me on this problem? Thanks, Sopolin

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  • Android: How to handle runtime exception on playing audio files?

    - by Maxood
    I have a button that plays an audio file on its click listener. If the button is clicked again and again while the audio file is being played then the app crashes. What's the solution? Here is some code for reference: private OnClickListener btnMercyListener = new OnClickListener() { public void onClick(View v) { // Toast.makeText(getBaseContext(), // "Mercy audio file is being played", // Toast.LENGTH_LONG).show(); if (status==true) { mp.stop(); mp.release(); status = false; } else { mp = MediaPlayer.create(iMEvil.this,R.raw.mercy); //mp.start(); try{ mp.start(); status= true; //mp.release(); }catch(NullPointerException e) { Log.v("MP error",e.toString()); } } mp.setOnCompletionListener(new OnCompletionListener(){ // @Override public void onCompletion(MediaPlayer arg0) { mp.release(); status = false; } } ); } };

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  • Getting XQuery [modify()]: Top-level attribute nodes are not supported error while modifying xml

    - by sam
    DECLARE @mycur CURSOR DECLARE @id int DECLARE @ParentNodeName varchar(max) DECLARE @NodeName varchar(max) DECLARE @NodeText varchar(max) SET @mycur = CURSOR FOR SELECT * FROM @temp OPEN @mycur FETCH NEXT FROM @mycur INTO @id,@ParentNodeName,@NodeName,@NodeText WHILE @@FETCH_STATUS = 0 BEGIN PRINT @id -- sample statements PRINT @ParentNodeName PRINT @NodeName SET @x.modify (' insert attribute status {sql:variable("@status")} as first into (/@ParentNodeName/@NodeName/child::*[position()=sql:variable("@status")])[1] ') FETCH NEXT FROM @mycur INTO @id,@ParentNodeName,@NodeName,@NodeText END DEALLOCATE @mycur Any idea why I am getting this error as query works fine if I manually insert path

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  • How to handle runtime exception on playing audio files?

    - by Maxood
    I have a button that plays an audio file on its click listener. If the button is clicked again and again while the audio file is being played then the app crashes. What's the solution? Here is some code for reference: private OnClickListener btnMercyListener = new OnClickListener() { public void onClick(View v) { // Toast.makeText(getBaseContext(), // "Mercy audio file is being played", // Toast.LENGTH_LONG).show(); if (status==true) { mp.stop(); mp.release(); status = false; } else { mp = MediaPlayer.create(iMEvil.this,R.raw.mercy); //mp.start(); try{ mp.start(); status= true; //mp.release(); }catch(NullPointerException e) { Log.v("MP error",e.toString()); } } mp.setOnCompletionListener(new OnCompletionListener(){ // @Override public void onCompletion(MediaPlayer arg0) { mp.release(); status = false; } } ); } };

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  • Why is PHP not allowing comparison?

    - by dcp3450
    I'm using PHP to read if an entry in my table on the database is set to "yes" or "no" and auto check the radio button that corresponds: <?php include 'file.php'; $query = "SELECT * FROM TABLE"; $runquery = odbc_exec($connect,$query); $status= odbc_result($runquery,"status"); odbc_close($file); ?> <form> <div class="formContainer"> <fieldset> <legend>Campus Alert<span class="tooltip">Turn campus alert on and off.</span></legend> <?php echo $status; ?> Yes <input type="radio" name="alertStatus" id="alertStatus" value="yes" <?php if($status== "yes") echo "checked";?>> No <input type="radio" name="alertStatus" id="alertStatus" value="no" <?php if($status== "no") echo "checked";?>> </fieldset> </div> the is for debugging so I can make sure what the database says and the form's reaction is correct. It prints "yes" (no quotes). However, the if statement will not respond. Any idea why it's doing this?

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  • Quoting of decimal values

    - by Peter
    I am storing a running total in a Decimal(10,2) field and adding to it as items are processed. update foo set bar = bar + '3.15' About 20% of the times a warning is issued "Data truncated for column 'bar' at row 4" This warning is never issued if the update value is not quoted. Should decimal values be quoted?

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  • getView() (for a Custom ListView ) doesn't get called on notifyDatasetChanged()

    - by hungson175
    Hi everyone, I have the following problem, and searched for a while but haven't got any solution from the net: I have a custom list view, each item has the following layout (I just post the essential): <LinearLayout> <ImageView android:id="@+id/friendlist_iv_avatar" /> <TextView andorid:id="@+id/friendlist_tv_nick_name" /> <ImageView android:id="@+id/friendlist_iv_status_icon" /> </LinearLayout> And I have a class FriendRowItem, which is inflated from the above layout: public class FriendRowItem extends LinearLayout{ private ImageView ivAvatar; private ImageView ivStatusIcon; private TextView tvNickName; public FriendRowItem(Context context) { super(context); RelativeLayout friendRow = (RelativeLayout) Helpers.inflate(context, R.layout.friendlist_row); this.addView(friendRow); ivAvatar = (ImageView)findViewById(R.id.friendlist_iv_avatar); ivStatusIcon = (ImageView)findViewById(R.id.friendlist_iv_status_icon); tvNickName = (TextView)findViewById(R.id.friendlist_tv_nick_name); } public void setPropeties(Friend friend) { //Avatar ivAvatar.setImageResource(friend.getAvatar().getDrawableResourceId()); //Status Status.Type status = friend.getStatusType(); if ( status == Type.ONLINE) { ivStatusIcon.setImageResource(R.drawable.online_icon); } else { ivStatusIcon.setImageResource(R.drawable.offline_icon); } //Nickname String name = friend.getChatID(); if ( friend.hasName()) { name = friend.getName(); } tvNickName.setText(name); } } In the main activity, I have a custom listview: lvMainListView, with an custom adapter (whose class extends ArrayAdapter - and off course: override the method getView ), the data set of the adapter is: ArrayList<Friend> friends: private class FriendRowAdapter extends ArrayAdapter<Friend> { public FriendRowAdapter(Context applicationContext, int friendlistRow, ArrayList<Friend> friends) { super(applicationContext, friendlistRow, friends); } @Override public View getView(int position,View convertView,ViewGroup parent) { Friend friend = getItem(position); FriendRowItem row = (FriendRowItem) convertView; if ( row == null ) { row = new FriendRowItem(ShowFriendsList.this.getApplicationContext()); } row.setPropeties( friend ); return row; } } the problem is when I change the status of a friend from OFFLINE to ONLINE, then call notifyDataSetChanged(), nothing happens : the status icon of that friend doesn't change. I tried debugging, and saw the code: notifyDataSetChanged() get called, but the custom getView() is not fired ! Can you please tell me, that is normal in Android, or did I do something wrong ? (I am using Android 1.5). Thank you in advance, Son

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  • Join map and refer to its key/value in HQL

    - by alamar
    Suppose I have a map: <map name="externalIds" table="album_external_ids"> <key column="album_id" not-null="true"/> <map-key-many-to-many class="Major" column="major_id"/> <element column="external_id" type="string" not-null="true"/> </map> How do I make a HQL meaning "select entities where map key's id == :foo and map value == :bar"? I can join it using select album from Album album join album.externalIds ids But how would I then refer to ids' key and value? ids.key.id = :foo and ids.value = :bar doesn't work, and hibernate doc is silent on this topic. Naive approaches that didn't work: select album from Album album join album.externalIds externalId where index(externalId).id = :foo and externalId = :bar and select album from Album album join album.externalIds externalId join index(externalId) major where major.id = :foo and externalId = :bar

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  • How would you organize a large complex web application (see basic example)?

    - by Anurag
    How do you usually organize complex web applications that are extremely rich on the client side. I have created a contrived example to indicate the kind of mess it's easy to get into if things are not managed well for big apps. Feel free to modify/extend this example as you wish - http://jsfiddle.net/NHyLC/1/ The example basically mirrors part of the comment posting on SO, and follows the following rules: Must have 15 characters minimum, after multiple spaces are trimmed out to one. If Add Comment is clicked, but the size is less than 15 after removing multiple spaces, then show a popup with the error. Indicate amount of characters remaining and summarize with color coding. Gray indicates a small comment, brown indicates a medium comment, orange a large comment, and red a comment overflow. One comment can only be submitted every 15 seconds. If comment is submitted too soon, show a popup with appropriate error message. A couple of issues I noticed with this example. This should ideally be a widget or some sort of packaged functionality. Things like a comment per 15 seconds, and minimum 15 character comment belong to some application wide policies rather than being embedded inside each widget. Too many hard-coded values. No code organization. Model, Views, Controllers are all bundled together. Not that MVC is the only approach for organizing rich client side web applications, but there is none in this example. How would you go about cleaning this up? Applying a little MVC/MVP along the way? Here's some of the relevant functions, but it will make more sense if you saw the entire code on jsfiddle: /** * Handle comment change. * Update character count. * Indicate progress */ function handleCommentUpdate(comment) { var status = $('.comment-status'); status.text(getStatusText(comment)); status.removeClass('mild spicy hot sizzling'); status.addClass(getStatusClass(comment)); } /** * Is the comment valid for submission */ function commentSubmittable(comment) { var notTooSoon = !isTooSoon(); var notEmpty = !isEmpty(comment); var hasEnoughCharacters = !isTooShort(comment); return notTooSoon && notEmpty && hasEnoughCharacters; } // submit comment $('.add-comment').click(function() { var comment = $('.comment-box').val(); // submit comment, fake ajax call if(commentSubmittable(comment)) { .. } // show a popup if comment is mostly spaces if(isTooShort(comment)) { if(comment.length < 15) { // blink status message } else { popup("Comment must be at least 15 characters in length."); } } // show a popup is comment submitted too soon else if(isTooSoon()) { popup("Only 1 comment allowed per 15 seconds."); } });

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  • Incorrect Coordinates From getLocationOnScreen/getLocationInWindow

    - by nimph
    A call to getLocationOnScreen() or getLocationInWindow() both give me a top/Y coordinate that is about ~30px (status/notifications bar's height) too far down. The left/X coordinate is dead on. As I hinted above, I believe the difference is because of the status/notification bar... I could be wrong. I think I can solve this if I can determine the size of the notification bar but, I'm having trouble doing just that. Any help would be greatly appreciated.

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  • Problem with XStream Marshalling to return xml and json

    - by MiKu
    When i use new XStream().toXml(someObject); it returns following xml... <response> <status>SUCCESS</status> <isOwnershipVerified class="boolean">false</isOwnershipVerified> </response> and, when i use new XStream(new JsonHierarchicalStreamDriver()).toXml(someObject); it returns following json... {"response": { "status": "SUCCESS", "isOwnershipVerified": { "@class": "boolean""false"} }} Now, since i want to get rid of class attribute altogether (read it not to alias it with anything else, but to remove it) i use following code. XStream xStream = new XStream(); StringWriter writer = new StringWriter(); xStream.marshal(this, new PrettyPrintWriter(writer) { @Override public void addAttribute(final String key, final String value) { if (!key.equals("class")) { super.addAttribute(key, value); } } }); return writer.toString(); which gives follwing xml... <response> <status>SUCCESS</status> <isOwnershipVerified>false</isOwnershipVerified> </response> but, when i pass new JsonHierarchicalStreamDriver() while xStream object creation above, it does NOT return json. it returns the same xml shown above. What is wrong going on here? Thanks in advance...

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