php - Code Igniter - carts library random works -

-

i’m using cart library orders in web bookstore. when call addcart function on 1 of book it’s works, not time. please, help

there model function:

function get_books_by_id($id) {     $this->db->where('book_id', $id);      $query =  $this->db->get('books');     return $query;     echo vardump($query); }

controller:

function addcards($id=1) {     $query = $this->kategorie_model->get_books_by_id($id);     if($query->num_rows() > 0)     {         $item = $query->row();          $data = array(             'id'      => $item->book_id,             'qty'     => 1,             'price'   => $item->book_price,             'name'    => $item->book_title         );         $this->cart->insert($data);     } }

view:

<tr> <td class="color"><b>cena: </b><?php echo $data->book_price;?>zł</td> <td class="border" id="koszyk" ><?php echo anchor('ksiegarnia/addcards/'.$data->book_id, 'koszyk'); ?></td> </tr>

update:

vardump nothing necessary. want use var_dump. problem related adding items session carts library. have bookstore, , when call addcarts function, items added carts, , cart function total() , total_items displaying it, when call function, nothing happened. items not add carts. don't why thing have place. why carts library works randomly?

i ran issue , seems in codeigniter cart library insert function checks product(s) id , name against regex allow alpha-numeric, dashes, underscores , periods

adjust regex may come up:

$this->cart->product_id_rules = '.a-z0-9_';

$this->cart->product_name_rules = '.\:-_ a-z0-9';

in case randomly add thing carts too. if turn on logging , check you'll able see name or id may contain invalid chars


Comments

Post a Comment

Popular posts from this blog

java - SNMP4J General Variable Binding Error -

-
i trying use snmp4j snmp bulkget. when ever use snmp4j make call returned responseevent error says "general variable binding error" , data returned equal null. to debug: print out, console, exact oid , version number using in snmp4j. use printed out data snmpwalk on command line. valid results. know sending snmp4j correct pdu correct oid, version number, max repititions, etc. i have used snmp4j , code wrote succesffuly monitor other devices years. don't know different time. leaving me stumped. why "general variable binding error?" causes error? ideas debug? can reproduced? if so, first action should using wireshark or microsoft network monitor capture network packets. my guess agent gives generr response, not surprising, http://www.ietf.org/rfc/rfc1157.txt
Read more

windows - Python Service Installation - "Could not find PythonClass entry" -

-
i working on building python service. inducing error, not sure inducing it. ps c:\...> python .\file.py debug debugging service myservice - press ctrl+c stop. error 0xc00000f4 - not find service's pythonclass entry in registry error 1814 - specified resource name cannot found in image file. error 0xc0000080 - not locate module name in python class string (ie, no '.') this error coming pythonservicemessages.mc in pythonwin32. it turns out error result caused exception being thrown , python script dying off.
Read more

Determine if a XmlNode is empty or null in C#? -

-
the following code takes xmlnode data type , populates dataset object xmlnode content. write dataset's content file. public void populatedataset(xmlnode node) { xmlnodereader reader = new xmlnodereader(node); dataset ds = new dataset(); ds.readxml(reader); system.guid guid = system.guid.newguid(); string name = string.format("{0}{1}_{2}.xml", utility.xmloutputpath, utility.xmloutputfilename, guid.tostring()); //need write "node empty" file if xmlnode object empty of null ds.writexml(name, xmlwritemode.ignoreschema); } the problem encountered 1 scenario not write content file. how determine if xmlnode object null or empty? you can check if node parameter null or has innertext or innerxml properties null or empty, when enter method before creating xmlnodereader .
Read more