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sutterp
Joined: 16 Apr 2008
Posts: 6
Location: Western Australia
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 Posted: Wed May 07, 2008 10:42 am Post subject: column formatter sends apache into a tight loop |
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Consider the following column formatter callbacks.
| Code: | # Column Formatter for an input field
function addInput($params,$args) {
print_r("<pre>addColumn");var_dump($args);print_r("</pre>");
$colname = $args['colname'];
$size = $args['size'];
extract($params);
return('<input type="text" ' .
'name="' . $colname . '-' . $record['sparesvehiclestpk'] . '" ' .
'value="' . $record[$colname] . '" ' .
'size="' . $size . '" ' .
'class="textoc" />');
}
// -----------------------------------------------------------------------------------------------
# Column Formatter for the normal data columns
function addText($params,$args) {
print_r("<pre>addColumn");var_dump($args);print_r("</pre>");
$colname = $args['colname'];
extract($params);
return($record[$colname]);
}
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The formatters are used in the following manner in the addColumn functions.
| Code: |
$datagrid->addColumn(new Structures_DataGrid_Column('Mob.',
'vehiclestpk',
'vehiclestpksort',
array('class'=>'colValueC'),
null,
'AddText()',
array('colname'=>'vehiclestpk')));
$datagrid->addColumn(new Structures_DataGrid_Column('Quant.',
'quantity',
'quantity',
array('class'=>'colValueC'),
null,
'AddInput()',
array('colname'=>'quantity','size'=>'3')));
$datagrid->addColumn(new Structures_DataGrid_Column('Description',
'description',
'description',
array('class'=>'colValueC'),
null,
'AddInput()',
array('colname'=>'description','size'=>'20')));
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This works nicely. I can in fact add as many AddInput formatters as I want. If I add however any another addColumn which does not have AddInput as formatter, the program goes into a tight loop until http-prefork exhausts cpu limit. http-prefork consumes all available cpu. AddInput appears to break some code somewhere.
The following warnings are issued:
| Quote: | Warning: Cannot use a scalar value as an array in /data/www/intranet/spares/compiled/%%-19^%%-1964659800^sparesGrid_VehicleDe.inc.scr.php on line 89
Warning: Cannot use a scalar value as an array in /data/www/intranet/spares/compiled/%%-19^%%-1964659800^sparesGrid_VehicleDe.inc.scr.php on line 89
Warning: Cannot use a scalar value as an array in /data/www/intranet/spares/compiled/%%-19^%%-1964659800^sparesGrid_VehicleDe.inc.scr.php on line 90
Warning: Cannot use a scalar value as an array in /data/www/intranet/spares/compiled/%%-19^%%-1964659800^sparesGrid_VehicleDe.inc.scr.php on line 91
Warning: Cannot use a scalar value as an array in /data/www/intranet/spares/compiled/%%-19^%%-1964659800^sparesGrid_VehicleDe.inc.scr.php on line 92
Warning: Cannot use a scalar value as an array in /data/www/intranet/spares/compiled/%%-19^%%-1964659800^sparesGrid_VehicleDe.inc.scr.php on line 93
Warning: Cannot use a scalar value as an array in /data/www/intranet/spares/compiled/%%-19^%%-1964659800^sparesGrid_VehicleDe.inc.scr.php on line 94
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Here is the code from the the compile file
| Quote: |
$this->_sections['row']['index'] += $this->_sections['row']['step'], $this->_sections['row']['iteration']++):
$this->_sections['row']['rownum'] = $this->_sections['row']['iteration'];
$this->_sections['row']['index_prev'] = $this->_sections['row']['index'] - $this->_sections['row']['step'];
$this->_sections['row']['index_next'] = $this->_sections['row']['index'] + $this->_sections['row']['step'];
$this->_sections['row']['first'] = ($this->_sections['row']['iteration'] == 1);
$this->_sections['row']['last'] = ($this->_sections['row']['iteration'] == $this->_sections['row']['total']);
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What am I missing?
Any clues welcome
Thanks
Peter
oops, I forgot to mention that the code works fine under php5, the symptoms manifest only under php4. |
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mark
Joined: 07 Jan 2007
Posts: 1053
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| Posted: Thu May 08, 2008 10:23 pm Post subject: |
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Sorry, without your (almost) complete code and templates, this will be hard to debug. You could maybe try whether another column works without Smarty, e.g. by just rendering an HTML_Table with Structures_DataGrid.
One note about your formatter definitions: You're defining 'colname' in the array for the formatters. This isn't really needed because the name of the column is available via $params['fieldName']. |
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sutterp
Joined: 16 Apr 2008
Posts: 6
Location: Western Australia
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| Posted: Fri May 09, 2008 1:39 pm Post subject: |
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| The observed symptoms are caused by the column sort argument. When a column sort supplied for an <input type="text"> field smarty appears to throw a spanner into the works. Specifying null as column sort fixed the problem. I guess, it does not make much sense to sort over a series of input fields. |
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mark
Joined: 07 Jan 2007
Posts: 1053
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| Posted: Fri May 09, 2008 3:37 pm Post subject: |
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| sutterp wrote: | | I guess, it does not make much sense to sort over a series of input fields. |
I agree, I would disable sorting for this column (third parameter of column constructor IIRC). |
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sutterp
Joined: 16 Apr 2008
Posts: 6
Location: Western Australia
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| Posted: Fri May 09, 2008 4:47 pm Post subject: |
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However, this in not yet the end of the story, this is, I believe, a bug manifesting.
Consider the following code used, and working fine under php5.
| Code: | $dat =& new Structures_DataGrid(50);
$dat->setRequestPrefix('dat_');
$dat->setDefaultSort(array('sort1' => 'ASC'));
$status = $dat->bind($datSql, $dsn);
$dat->addColumn(new Structures_DataGrid_Column('Group',
'sparesgroupname',
'sort1',
array('class'=>'colValueL'),
null,
'AddText()',
array('colname'=>'sparesgroupname')));
$dat->addColumn(new Structures_DataGrid_Column('Manufacturer',
'manufacturer',
'manufacturer',
array('class'=>'colValueL'),
null,
'AddText()',
array('colname'=>'manufacturer')));
$dat->addColumn(new Structures_DataGrid_Column('Supplier',
'supplier',
'supplier',
array('class'=>'colValueL'),
null,
'AddText()',
array('colname'=>'supplier')));
$dat->addColumn(new Structures_DataGrid_Column('Supplier Part No',
'supplierpartno',
null,
array('class'=>'colValueL'),
null,
'AddText()',
array('colname'=>'supplierpartno')));
$dat->addColumn(new Structures_DataGrid_Column('S',
'supplierpartno',
null,
array('class'=>'colValueL'),
null,
'AddText()',
array('colname'=>'supplierpartno')));
$dat->addColumn(new Structures_DataGrid_Column('Part Description',
'sdescription',
null,
array('class'=>'colValueL'),
null,
'AddText()',
array('colname'=>'sdescription')));
$dat->addColumn(new Structures_DataGrid_Column('Quantity',
'quantity',
null,
array('class'=>'colValueL'),
null,
'AddText()',
array('colname'=>'quantity')));
$dat->addColumn(new Structures_DataGrid_Column('Remarks',
'vdescription',
null,
array('class'=>'colValueL'),
null,
'AddText()',
array('colname'=>'sdescription')));
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and here is the html source generated after rendering it via smarty under php5.
| Code: | <table class="dstable" cellspacing="0" border="0">
<tr class="colheads">
<th class="colValueL" >
<a href="/spares/php/sparesGrid_List.php?VisionAcctableFK=HAWKINS-539&VehiclesTPK=539&dat_orderBy=sort1&dat_direction=DESC&dat_page=1">Group</a> ▼</th>
<th class="colValueL" >
<a href="/spares/php/sparesGrid_List.php?VisionAcctableFK=HAWKINS-539&VehiclesTPK=539&dat_orderBy=manufacturer&dat_direction=ASC&dat_page=1">Manufacturer</a>
</th>
<th class="colValueL" >
<a href="/spares/php/sparesGrid_List.php?VisionAcctableFK=HAWKINS-539&VehiclesTPK=539&dat_orderBy=supplier&dat_direction=ASC&dat_page=1">Supplier</a>
</th>
<th class="colValueL" >
Supplier Part No
</th>
<th class="colValueL" >
S
</th>
<th class="colValueL" >
Part Description
<th>
<th class="colValueL" >
Quantity
</th>
<th class="colValueL" >
Remarks
</th>
</tr>
<tr >
<td class="colValueL" >Filters - Fuel</td>
<td class="colValueL" >Ryco</td>
<td class="colValueL" >Truck City</td>
<td class="colValueL" >Z14K</td>
<td class="colValueL" >Z14K</td>
<td class="colValueL" >Engine fuel filter X14K</td>
<td class="colValueL" >1</td>
<td class="colValueL" >Engine fuel filter X14K</td>
</tr>
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but the output is screwed up under php4
| Code: |
<table class="dstable" cellspacing="0" border="0">
<tr class="colheads">
<th class="colValueL" >
<a href="/spares/php/sparesGrid_List.php?VisionAcctableFK=HAWKINS-539&VehiclesTPK=539&dat_orderBy=sort1&dat_direction=DESC&dat_page=1">Group</a>
▼
</th>
<th class="colValueL" >
<a href="/spares/php/sparesGrid_List.php?VisionAcctableFK=HAWKINS-539&VehiclesTPK=539&dat_orderBy=manufacturer&dat_direction=ASC&dat_page=1">Manufacturer</a>
</th>
<th " >
<a href="/spares/php/sparesGrid_List.php?VisionAcctableFK=HAWKINS-539&VehiclesTPK=539&dat_orderBy=supplier&dat_direction=ASC&dat_page=1">Supplier</a>
</th>
<th class="colValueL" >
Supplier Part No
</th>
<th class="colValueL" >
S
</th>
<th >
</th>
<th class="colValueL" >
Quantity
</th>
<th class="colValueL" >
Remarks
</th>
</tr>
<tr >
<td class="colValueL" >Filters - Fuel</td>
<td class="colValueL" >Ryco</td>
<td " >Truck City</td>
<td class="colValueL" >Z14K</td>
<td class="colValueL" >Z14K</td>
<td >Engine fuel filter X14K</td>
<td class="colValueL" >1</td>
<td class="colValueL" >Engine fuel filter X14K</td>
</tr>
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Some of the header data is corrupted and pieces of the header are missing.
For completeness, here is the code of my formatter.
| Code: | // -----------------------------------------------------------------------------------------------
# Column Formatter for the normal data columns
function addText($params,$args) {
$colname = $args['colname'];
extract($params);
return($record[$colname]);
}
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What next? |
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mark
Joined: 07 Jan 2007
Posts: 1053
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| Posted: Fri May 09, 2008 5:09 pm Post subject: |
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| I don't know much about Smarty, but I'd guess that this is a Smarty problem. Maybe you could post the code and the description in a Smarty forum or mailing list? |
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