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• How to name uploaded files in php to prevent them from being overwritten?

  - by user156814

  I'm trying to add user submitted articles to my website, (only for admins). With each article comes an option to upload up to 3 images. My database is set up like this Articles id user_id title body date_added last_edited Photos id (auto_increment) article_id First I save the article in the database, then I upload the photo (temporarily) then I create a new photo record in the database saving the article_id. Then I rename the uploaded photo to be the same as the primary key of the photo record, and to be a png. $filename = $photo->id . '.png'; I figured this would be a good way to prevent files form being overwritten. This seems flawed to me. Any suggestions on how I should save my records and photos? Thanks

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• How to change element name on Page load with jquery?

  - by streetparade

  Hy, i need to know how i can change the name of a element. I have the id of that element say it is "tester" Ok the on page load problem could be solved this way. $(document).ready(function() { }); but how can i change the name of a element like this? <div id="tester" name="fun"> </div> what i want as result <div id="tester" name="tester"> </div>

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• nginx rewrite help

  - by kevin

  how do i do this rewrite in nginx? can you help me out id.quiz.xx.com - quiz.xx.com/?quiz_id=id thanks a lot!

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• Scalable way of doing self join with many to many table

  - by johnathan

  I have a table structure like the following: user id name profile_stat id name profile_stat_value id name user_profile user_id profile_stat_id profile_stat_value_id My question is: How do I evaluate a query where I want to find all users with profile_stat_id and profile_stat_value_id for many stats? I've tried doing an inner self join, but that quickly gets crazy when searching for many stats. I've also tried doing a count on the actual user_profile table, and that's much better, but still slow. Is there some magic I'm missing? I have about 10 million rows in the user_profile table and want the query to take no longer than a few seconds. Is that possible?

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• asp.net how to add TemplateField programmatically for about 10 dropdownlist...

  - by dotnet-practitioner

  This is my third time asking this question. I am not getting good answers regarding this. I wish I could get some help but I will keep asking this question because its a good question and SO experts should not ignore this... So I have about 10 dropdownlist controls that I add manually in the DetailsView control manually like follows. I should be able to add this programmatically. Please help and do not ignore... <asp:DetailsView ID="dvProfile" runat="server" AutoGenerateRows="False" DataKeyNames="memberid" DataSourceID="SqlDataSource1" OnPreRender = "_onprerender" Height="50px" onm="" Width="125px"> <Fields> <asp:TemplateField HeaderText="Your Gender"> <EditItemTemplate> <asp:DropDownList ID="ddlGender" runat="server" DataSourceid="ddlDAGender" DataTextField="Gender" DataValueField="GenderID" SelectedValue='<%#Bind("GenderID") %>' > </asp:DropDownList> </EditItemTemplate> <ItemTemplate > <asp:Label Runat="server" Text='<%# Bind("Gender") %>' ID="lblGender"></asp:Label> </ItemTemplate> so on and so forth... <asp:CommandField ShowEditButton="True" ShowInsertButton="True" /> </Fields> </asp:DetailsView> ======================================================= Added on 5/3/09 This is what I have so far and I still can not add the drop down list programmatically. private void PopulateItemTemplate(string luControl) { SqlDataSource ds = new SqlDataSource(); ds = (SqlDataSource)FindControl("ddlDAGender"); DataView dvw = new DataView(); DataSourceSelectArguments args = new DataSourceSelectArguments(); dvw = (DataView)ds.Select(args); DataTable dt = dvw.ToTable(); DetailsView dv = (DetailsView)LoginView2.FindControl("dvProfile"); TemplateField tf = new TemplateField(); tf.HeaderText = "Your Gender"; tf.ItemTemplate = new ProfileItemTemplate("Gender", ListItemType.Item); tf.EditItemTemplate = new ProfileItemTemplate("Gender", ListItemType.EditItem); dv.Fields.Add(tf); } public class ProfileItemTemplate : ITemplate { private string ctlName; ListItemType _lit; private string _strDDLName; private string _strDVField; private string _strDTField; private string _strSelectedID; private DataTable _dt; public ProfileItemTemplate(string strDDLName, string strDVField, string strDTField, DataTable dt ) { _dt = dt; _strDDLName = strDDLName; _strDVField = strDVField; _strDTField = strDTField; } public ProfileItemTemplate(string strDDLName, string strDVField, string strDTField, string strSelectedID, DataTable dt ) { _dt = dt; _strDDLName = strDDLName; _strDVField = strDVField; _strDTField = strDTField; _strSelectedID = strSelectedID; } public ProfileItemTemplate(string ControlName, ListItemType lit) { ctlName = ControlName; _lit = lit; } public void InstantiateIn(Control container) { switch(_lit) { case ListItemType.Item : Label lbl = new Label(); lbl.DataBinding += new EventHandler(this.ddl_DataBinding_item); container.Controls.Add(lbl); break; case ListItemType.EditItem : DropDownList ddl = new DropDownList(); ddl.DataBinding += new EventHandler(this.lbl_DataBinding); container.Controls.Add(ddl); break; } } private void ddl_DataBinding_item(object sender, EventArgs e) { DropDownList ddl = (DropDownList)sender; ddl.ID = _strDDLName; ddl.DataSource = _dt; ddl.DataValueField = _strDVField; ddl.DataTextField = _strDVField; } private void lbl_DataBinding(object sender, EventArgs e) { Label lbl = (Label)sender; lbl.ID = "lblGender"; DropDownList ddl = (DropDownList)sender; ddl.ID = _strDDLName; ddl.DataSource = _dt; ddl.DataValueField = _strDVField; ddl.DataTextField = _strDTField; for (int i = 0; i < _dt.Rows.Count; i++) { if (_strSelectedID == _dt.Rows[i][_strDVField].ToString()) { ddl.SelectedIndex = i; } } lbl.Text = ddl.SelectedValue; } } Please help me....

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• Creating/populating Javascript custom object

  - by Ek0nomik

  I've created an ashx page which is going to serve me an XML document full of basic user information. I'm not sure which is the best way to go about creating and populating my custom javascript object. I've seen them created in two ways: function User() { this.Id; this.FirstName; this.LastName; this.Title; } and var User2 = { Id: null, FirstName: null, LastName: null, Title: null } I could populate each of these by doing something like: //first object User.Id = 1 //second object User2.FirstName = 'John' Is one method of creating the object better than the other?

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• background-image in IE

  - by amit

  <div id="banner" style="display: block; background-image: url('images/swirl_home.gif'); background-repeat: no-repeat; background-color: #e7e7e7;"> <div id="Hi"> some text here... </div> <div id="loader"> <img src="images/ajax-loader.gif" /> </div> </div> #banner { background-color: #e7e7e7; min-height: 285px; } the above code renders perfectly in Mozilla and Chrome. Fails entirely in IE 6/7/8. The background image just doesnt show. I can see the text though. What am I doing wrong...?

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• How to use Datasource to fetch some value that has been filled in it.

  - by Shantanu Gupta

  I am trying to fetch a column value from a datasource when some value is selected from a dropdownlist on its change event. <asp:DropDownList ID="ddlCityName" runat="server" DataSourceID="dsCity" DataTextField="CityName" DataValueField="CityID" AutoPostBack="True" OnTextChanged="CityName_OnTextChanged"> </asp:DropDownList> <asp:SqlDataSource ID="dsCity" runat="server" ConnectionString="<%$ ConnectionStrings:GmapConnectionString %>" SelectCommand="SELECT * FROM [vcity]" ></asp:SqlDataSource> Here I want to fetch any other column's value that is not binded to a ddlCityName from sqldatasource. I have four columns in datasource i.e. name, id, address, phno. I want to fetch an address of a person who selects some value from ddl.

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• Is it possible to use jquery to add numbers taken from mysql?

  - by Scarface

  Hey guys quick question. I have a div that gets assigned a number to its id that is taken from the database on page load. I am trying to use jquery to add 1 to that number but for example if the number was 70 to begin with it just becomes 701. Anyone know what I am doing wrong? echo "<div class=\"total\" id=\"$total\">$total</div>"; var total=$(".total").attr("id"); var newtotal=total+1; $('.total').html(newtotal);

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• Too Few Arguments

  - by NoahClark

  I am trying to get some Javascript working in my Rails app. I want to have my index page allow me to edit individual items on the index page, and then reload the index page upon edit. My index.html.erb page looks like: <div id="index"> <%= render 'index' %> </div> In my index.js.erb I have: $('#index').html("<%=j render 'index' %>"); and in my holders_controller: def edit holder = Holder.find(params[:id]) end def update @holder = Holder.find(params[:id]) if @holder.update_attributes(params[:holder]) format.html { redirect_to holders_path } #, flash[:success] = "holder updated") ## ^---Line 28 in error format.js else render 'edit' end end When I load the index page it is fine. As soon as click the edit button and it submits the form, I get the following: But if I go back and refresh the index page, the edits are saved. What am I doing wrong?

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• F# replace ref variable with something fun

  - by Stephen Swensen

  I have the following F# functions which makes use of a ref variable to seed and keep track of a running total, something tells me this isn't in the spirit of fp or even particular clear on its own. I'd like some direction on the clearest (possible fp, but if an imperative approach is clearer I'd be open to that) way to express this in F#. Note that selectItem implements a random weighted selection algorithm. type WeightedItem(id: int, weight: int) = member self.id = id member self.weight = weight let selectItem (items: WeightedItem list) (rand:System.Random) = let totalWeight = List.sumBy (fun (item: WeightedItem) -> item.weight) items let selection = rand.Next(totalWeight) + 1 let runningWeight = ref 0 List.find (fun (item: WeightedItem) -> runningWeight := !runningWeight + item.weight !runningWeight >= selection) items let items = [new WeightedItem(1,100); new WeightedItem(2,50); new WeightedItem(3,25)] let selection = selectItem items (new System.Random())

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• Why is this MySQL Join Statement not Working?

  - by Timmy

  Here is my code: $query2 = mysql_query("SELECT * FROM categories WHERE parent = $id JOIN SELECT * FROM posts WHERE main_nav_page = '$idTwo'"); while ($row2 = mysql_fetch_assoc($query2)) { $id = $row2['id']; $name = $row2['name']; $slug = $row2['slug']; $subMenuOrder = $row2['sub_menu_order']; echo "<tr>\n"; echo "<td>&nbsp; -- $name</td>\n"; echo "</tr>\n"; } Is my syntax wrong? EDIT: the error message is: Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource in /home/studentw/public_html/new_nav.php on line 30

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• need code for show result inside table html

  - by klox

  dear all..i have a textfield <tr> <td> <td><input type="text" id="model_name"></td> </td> </tr> and a cell <tr> <td><div id="value">//i want data show here after fill textfield</div> </td> </tr> beside that, i've a table "settingdata" in database it consist of 2 field:itemdata and remark.. itemdata's value are "UD" and remark's value are "FM=87.5-108.0MHZ"... what must i do if i want after type model name "car01UD" at textfield inside <div id="value"></div> can show "FM=87.5-108.0mhz"...

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• ASP Repeater Evals mixed with HTML

  - by Bry4n

  I want to include HTML and Eval within a Repeater: <asp:Repeater ID="Rpt" runat="server" DataSourceID="DS"> <HeaderTemplate><div id="gallery"></HeaderTemplate> <ItemTemplate> <a href='<%# Eval("Url") %>' class="show"> <img src='<%# Eval("Image") %>' alt='<%# Eval("Title") %>' title="" runat="server" id="sb1" rel='<%# Eval("Title") %>'/></a> </ItemTemplate> <FooterTemplate></FooterTemplate> </asp:Repeater> I want the rel attribute Eval Title to have h3 tags wrapped around it. I've done this before, but I'm drawing a huge blank

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• Date range/query problem..

  - by Simon

  Am hoping someone can help me out a bit with date ranges... I have a table with 3 fields id, datestart, dateend I need to query this to find out if a pair of dates from a form are conflicting i.e table entry 1, 2010-12-01, 2010-12-09 from the form 2010-12-08, 20-12-15 select id from date_table where '2010-12-02' between datestart and dateend; That returns me the id that I want, but what I would like to do is to take the date range from the form and do a query similar to what I have got that will take both form dates 2010-12-08, 20-12-15 and query the db to ensure that there is no conflicting date ranges in the table. Am sat scratching my head with the problem... TIA

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• Rails 3 Join Question for Votes Table

  - by Dex

  I have a table posts and a polymorphic table votes. The votes table looks like this: create_table :votes do |t| t.references :user # user_id t.vote # the vote value t.references :votable # votable_type and votable_id end I want to list all posts that the user has not yet voted on. Right now I'm basically taking all the posts they've already voted on and subtracting that from the entire set of posts. It works but it's not very convenient as I currently have it. def self.where_not_voted_on_by(user) sql = "SELECT P.* FROM posts P LEFT OUTER JOIN (" sql << where_voted_on_by(user).to_sql sql << ") ALREADY_VOTED_FOR ON P.id = ALREADY_VOTED_FOR.id WHERE (user_id is null)" puts sql resultset = connection.select_all(sql) results = [] resultset.each do |r| results << Post.new(r) end results end def self.where_voted_on_by(user) joins(:votes.outer).where("user_id = #{user.id}").select("posts.*, votes.user_id") end

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• change the return of to_param by action? or, terribly broken edit action if perma-url is returned in

  - by Stacia

  I did some stuff to have to_param return a perma-url so I'd have seo friendly links. Upon creation and update it will generate and return the perma-url in a to_param method that I put in the model. However this causing me some grief in other areas. I have a form that looks like this: <% @apps.each do |app| %> <% fields_for "[id][]", app do |fields| %> .... this fails terribly since it tries to insert the perma-url in place of the id. If I could just restrict to_param by action, that could solve things. If I change app to app.id, that fails since I have stuff like this: fields.check_box :is_featured . I suppose I could get the app instance, but that feels hacky. Again please excuse my lack of rails-foo ;)

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• Help with concept - filters and number of items

  - by dreamer

  Please check http://www.alibaba.com/catalogs/cid/702/Laptops.html they have nice filter here with number of items for each. Note one detail - they have locations here. Same thing on olx.com - location and number of items for each category. Now imagine I have tables: [products] (Id, Name, CategoryId, LocationId) [Categories] (Id,Name) [Location] (Id, Name) My question how can I do the same, cause count things even with caching looks expensive? And they give results pretty fast... Please advice with possible ways to do that in ASP.NET, C#, MVC, MS SQL, but avoice simple answers like "count and change" Thank you in advance.

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• mysql LAST_INSERT_ID() used with multiple records INSERT statement

  - by bogdan

  Hello, If i insert multiple records with a loop that executes a single record insert, the last insert id returned is, as expected, the last one... but if i do a multiple records insert statement: INSERT INTO people (name,age) VALUES('William',25),('Bart',15),('Mary',12); let's say the three above are the first records inserted in the table...after the insert statement i expected last insert id to return 3, but it returned 1...the first insert id for the statement in question... So can someone please confirm if this is the normal behavior of LAST_INSERT_ID() in the context of multiple records INSERT statements...so i can base my code on it thanks :)

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• Database Design Question: GUID + Natural Numbers

  - by Alan

  For a database I'm building, I've decided to use natural numbers as the primary key. I'm aware of the advantages that GUID's allow, but looking at the data, the bulk of row's data were GUID keys. I want to generate XML records from the database data, and one problem with natural numbers is that I don't want to expose my database key's to the outside world, and allow users to guess "keys." I believe GUID's solve this problem. So, I think the solution is to generate a sparse, unique iD derived from the natural ID (hopefully it would be 2-way), or just add an extra column in the database and store a guid (or some other multibyte id) The derived value is nicer because there is no storage penalty, but it would be easier to reverse and guess compared to a GUID. I'm (buy) curious as to what others on SO have done, and what insights they have.

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• jQuery colorbox plugin isn't loading inline content

  - by Summer

  Hi, I'm trying to use the jQuery colorbox plugin to show a little warning when a warning icon is clicked. Check out the problem: - Go to http://dev.imagineelection.com/browse/zip/10011 - Click on one of the warning icons (scroll down to see one). See how the colorbox that pops up is empty? I've tried to isolate the problem: - If you click "View Source" -- the div id="address-alert" is in there - If you click "View Generated Source" (for example, with Firefox Web Developer plugin) -- the div id="address-alert" has been taken out, but it has not been replaced inside the new div id="cboxCurrent" that colorbox has put at the top of the page The jQuery call I'm doing is: if (jQuery().colorbox) { $(".warning-class").colorbox({width:"50%", inline:true, href:"#address-alert"}); } What is going on? Why won't the inline content work?

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• i don't know how to work with command argument in asp.net

  - by Depozitul de Chestii

  hey, i'm tryng to pass a parameter with command argument with a link button but the result i get is always "". this is in my aspx page: <% LinkButton1.CommandArgument = "abcdef"; %> <asp:LinkButton ID="LinkButton1" runat="server" OnCommand= "LinkButton1_Click"> and in my aspx.cs i have: protected void LinkButton1_Click(object sender,CommandEventArgs ee) { String id = ee.CommandName.ToString(); } the id is always "" after i press the linkbutton. would appreciate if someone could help me. thanks

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• Jquery Serialize data

  - by Richard

  So I have several text boxes, drop down menus, and radio options on this form. When the user clicks submit i want to save ALL that information so I can put it into a database. So this is all the form's inputs <div id="reg2a"> First Name: <br/><input type="text" name="fname" /> <br/> Last Name: <br/><input type="text" name="lname" /> <br/> Address: <br/><input type="text" name="address" /> <br/> City: <br/><input type="text" name="city" /> <br/> State: <br/><input type="text" name="state" /> <br/> Zip Code: <br/><input type="text" name="zip" /> <br/> Phone Number: <br/><input type="text" name="phone" /> <br/> Fax: <br/><input type="text" name="fax" /> <br/> Email: <br/><input type="text" name="email" /> <br/> Ethnicity: <i>Used only for grant reporting purposes</i> <br/><input type="text" name="ethnicity" /> <br/><br/> Instutional Information Type (select the best option) <br/> <select name="iitype"> <option value="none">None</option> <option value="uni">University</option> <option value="commorg">Community Organization</option> </select> <br/><br/> Number of sessions willing to present: <select id="vennum_select" name="vnum"> <?php for($i=0;$i<=3;$i++) { ?> <option value="<?php echo $i ?>"><?php echo $i ?></option> <?php } ?><br/> </select><br/> Number of tables requested: <select id="tabnum_select" name="tnum"> <?php for($i=1;$i<=3;$i++) { ?> <option value="<?php echo $i ?>"><?php echo $i ?></option> <?php } ?> </select><br/><br/> Awarding of a door prize during the conference will result in a reduction in the cost of your first table. <br/><br/> I am providing a door prize for delivery during the conference of $75 or more <select id="prize_select" name="pnum"> <option value="0">No</option> <option value="1">Yes</option> </select><br/> Prize name: <input type="text" name="prize_name" /><br/> Description: <input type="text" name="descr" /><br/> Value: <input type="text" name="retail" /><br/><br/> Name of Institution: <br/><input type="text" name="institution" /> <br/><br/> Type (select the best option) <br/> <select name="type"> <option value="none">None</option> <option value="k5">K-5</option> <option value="k8">K-8</option> <option value="68">6-8</option> <option value="912">9-12</option> </select> <br/><br/> Address: <br/><input type="text" name="address_sch" /> <br/> City: <br/><input type="text" name="city_sch" /> <br/> State: <br/><input type="text" name="state_sch" /> <br/> Zip Code: <br/><input type="text" name="zip_sch" /> <br/> <form name="frm2sub" id="frm2sub" action="page3.php" method="post"> <input type="submit" name="submit" value="Submit" id="submit" /> </form> </div> This is my jquery function: $("#frm2sub").submit( function() { var values = {}; values["fname"] = $("#fname").val(); }); I can do this for each one of the input boxes but I want to give all this data to the next page. So how do I put this array into $_POST? Btw, I've tried doing var data = $("#reg2a").serialize(); and var data = $(document).serialize(); Data ended up being empty. Any ideas? Thanks

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• LinkButton child controls render

  - by Alex

  Hi. I want to have a LinkButton that adds 'span' tag around the text. protected override void Render(HtmlTextWriter writer) { Text = String.Concat("<span>", Text, "</span>"); base.Render(writer); } It's works perfectly, but only if I add text like this: <cc:TestLinkButton ID="TestLinkButton" runat="server" Text="SomeText"> </cc:TestLinkButton> If I want to add some image I will write something like this: <cc:TestLinkButton ID="LinkButton1" runat="server"> <asp:Image ID="Image1" runat="server" ImageUrl="~/Images/icon_holiday.png" BorderWidth="0" /> SomeText </cc:TestLinkButton> In this case Text property will be empty, because actualy "SomeText" is child control property. So question is is how to add tag around child controls.

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• About Googe map

  - by vishal

  Hello everyone I am PHP Developer and developing website .in that i used Google map with the facility of select state and city. for select state and city i put two drop down.so now my problem is when i select state then i can not get value of city and both time whenever use select state and city i refresh the page and so after refreshing the page the value i got is incorrect and does not match the state with city... i clarify again Step 1:- select state (here page will refresh and then i will get value) Step 2:- select city (here also will refresh and then i will get value)) problem :- on the base getting state id and city id i fire the query but result will unknown b'cz city id that does not in selected state actually that city is there

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