I want to print the list of option from database on my blade, which I want to get all list except the option that already selected. So what I've already do is getting the selected option (which is saved on another table) as an array:
$ctg_id[] = [];
foreach($vendor->category as $item){
$ctg_id[] = [$item->category_id];
}
Then finally print it:
$category = ItemCategory::whereNotIn('id',$ctg_id)->get();
But it return an error that says:
"SQLSTATE[HY093]: Invalid parameter number (SQL: select * from category_item where id not in (4, 3, ?))" Is there anything wrong with my code?
You are using double dimensional array, you need to change it to one dimensional:
$ctg_id = [];
foreach($vendor->category as $item){
$ctg_id[] = $item->category_id;
}
Recommend to use method-pluck like this:
$category = ItemCategory::whereNotIn('id', $vendor->category->pluck('category_id'))->get();
Related
How do I get my "ALL" at the top of the list?
When I use .Insert(0, "ALL") it doesn't work either.
CODE:
// Category
var CategoryFilter = (from r in _context.INT_CertificationCategories select r.Category).Distinct().ToList();
CategoryFilter.Add("ALL");
ViewBag.CategoryList = CategoryFilter;
Use the following code:
CategoryFilter.Insert(0,"ALL")
I am using lodash in one of my projects to achieve filter. My requirement is we have different SELECT options that are generated dynamically. And these are populated with json.
So my filter function that I need should be generic. For example if there are 3 drop downs.
dropdown1. populated with values whose json_property is ABC_CODE="002"
dropdown2. populated with values whose json_property is xyz_CODE="002"
dropdown2 values should change based on dropdown1 selection
I have a masterdata list, which tells this information.
The loadash _.filter function should use varaibles. Because this filter should be used dynamically for different select options.
ex:
var a=_.filter($scope.masterData, function(e){
return _.indexOf(v, e.ABC_CODE) != -1;
});
console.log(a); //returns array of objects
I get the values.
How can I replace ABC_CODE from a javascript variable. like e.tempVar where tempVar is ABC_CODE
use bracket notation
var a = _.filter($scope.masterData, function(e) {
var key = ABC_CODE;
return _.indexOf(v, e[key]) != -1;
});
console.log(a); //returns array of objects
Following this question. There is something wrong, when using CDbMigration::update() inside foreach loop.
This code does not work correctly:
//This is executed inside Yii migration, so $this is CDbMigration.
foreach($idMap as $menuId=>$pageId)
{
$this->update
(
'menus_items',
array('link'=>'/content/show?id='.$pageId),
array('id = '.$menuId)
);
}
For each item in $idMap value of $pageId is always the same and equals value of last item in $idMap array. Therefore, every menu item points to the same URL.
This code works like a charm:
foreach($idMap as $menuId=>$pageId)
{
$sql = "UPDATE `menus_items` SET link = '/content/show?id=".$pageId."' WHERE id = ".$menuId."; ";
Yii::app()->db->createCommand($sql)->execute();
}
For each item in $idMap value of $pageId is always different and equals value of current item in $idMap array. Therefore, every menu item points to correct URL.
The same goes, when executing all statements in one SQL query:
$sql = '';
foreach($idMap as $menuId=>$pageId)
{
$sql .= "UPDATE `menus_items` SET link = '/content/show?id=".$pageId."' WHERE id = ".$menuId."; ";
}
Yii::app()->db->createCommand($sql)->execute();
Again, everything is OK.
Why using CDbMigration::update() fails, while direct SQL execution works like a charm?
I don't think you are providing the criteria parameter properly # array('id = '.$menuId)
. You should use a string if you want to send it like that, putting it in an array presumes you are mapping out the conditions in a key => value pair. Also you should be wrapping the value constraint in quotes id = "$menuId".
I'm using node js 0.10.12 to perform querys to postgreSQL 9.1.
I get the error error invalid input synatx for integer: "{39}" (39 is an example number) when I try to perform an update query
I cannot see what is going wrong. Any advise?
Here is my code (snippets) in the front-end
//this is global
var gid=0;
//set websockets to search - works fine
var sd = new WebSocket("ws://localhost:0000");
sd.onmessage = function (evt)
{
//get data, parse it, because there is more than one vars, pass id to gid
var received_msg = evt.data;
var packet = JSON.parse(received_msg);
var tid = packet['tid'];
gid=tid;
}
//when user clicks button, set websockets to send id and other data, to perform update query
var sa = new WebSocket("ws://localhost:0000");
sa.onopen = function(){
sa.send(JSON.stringify({
command:'typesave',
indi:gid,
name:document.getElementById("typename").value,
}));
sa.onmessage = function (evt) {
alert("Saved");
sa.close;
gid=0;//make gid 0 again, for re-use
}
And the back -end (query)
var query=client.query("UPDATE type SET t_name=$1,t_color=$2 WHERE t_id = $3 ",[name, color, indi])
query.on("row", function (row, result) {
result.addRow(row);
});
query.on("end", function (result) {
connection.send("o");
client.end();
});
Why this not work and the number does not get recognized?
Thanks in advance
As one would expect from the initial problem, your database driver is sending in an integer array of one member into a field for an integer. PostgreSQL rightly rejects the data and return an error. '{39}' in PostgreSQL terms is exactly equivalent to ARRAY[39] using an array constructor and [39] in JSON.
Now, obviously you can just change your query call to pull the first item out of the JSON array. and send that instead of the whole array, but I would be worried about what happens if things change and you get multiple values. You may want to look at separating that logic out for this data structure.
function mysql_insert($data_array){
$sql = "insert into `". $this->table_name. '`';
$array_keys = array_keys($data_array);
$array_keys_comma = implode(",\n", preg_replace('/^(.*?)$/', "`$1`", $array_keys));
for($a=0,$b=count($data_array); $a<$b; $a++){ $question_marks .="?,"; }
$array_values = array_values($data_array);
$array_values_comma = implode(",", $array_values);
$sql.= " ($array_keys_comma) ";
$sql.= " values(". substr($question_marks, 0,-1) .")";
$prepare = $this->connDB->prepare($sql);
$insert = $prepare->execute(array($array_values_comma));
}
I want to creat like this universal functions, $data_array-comes from $_POST
This function will work for all form. But i dont know what is my wrong :S
I don't know what is my wrong
That's quite easy to know: number of bound variables does not match number of tokens.
I want to creat like this universal functions, $data_array-comes from $_POST
Here you go: Insert/update helper function using PDO
$array_values_comma is a scalar after you implode() the array. So you always pass an array of one element to your execute() function. You should pass $array_values.
Here's how I'd write this function:
function mysql_insert($data_array){
$columns = array_keys($data_array);
$column_list_delimited = implode(",",
array_map(function ($name) { return "`$name`"; }, $columns));
$question_marks = implode(",", array_fill(1, count($data_array), "?"));
$sql = "insert into `{$this->table_name}` ($column_list_delimited)
values ($question_marks)";
// always check for these functions returning FALSE, which indicates an error
// or alternatively set the PDO attribute to use exceptions
$prepare = $this->connDB->prepare($sql);
if ($prepare === false) {
trigger_error(print_r($this->connDB->errorInfo(),true), E_USER_ERROR);
}
$insert = $prepare->execute(array_values($data_array));
if ($insert === false) {
trigger_error(print_r($prepare->errorInfo(),true), E_USER_ERROR);
}
}
A further improvement would be to do some validation of $this->table_name and the keys of $data_array so you know they match an existing table and its columns.
See my answer to escaping column name with PDO for an example of validating column names.