<?php
# Mantis - a php based bugtracking system

# Mantis is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# Mantis is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Mantis.  If not, see <http://www.gnu.org/licenses/>.

/**
 * @package CoreAPI
 * @subpackage ColumnsAPI
 * @copyright Copyright (C) 2000 - 2002  Kenzaburo Ito - kenito@300baud.org
 * @copyright Copyright (C) 2002 - 2009  Mantis Team   - mantisbt-dev@lists.sourceforge.net
 * @link http://www.mantisbt.org
 */

/**
 * Get a list of standard columns.
 */
function columns_get_standard() {
	$t_array = array(
		'additional_information',
		'attachment',
		'bugnotes_count',
		'build',
		'category_id',
		'date_submitted',
		'description',
		'edit',
		'eta',
		'fixed_in_version',
		'handler_id',
		'id',
		'last_updated'
	);

	if( ON == config_get( 'enable_profiles' ) ) {
		$t_array = array_merge( $t_array, array( 'os', 'os_build', 'platform' ) );
	}
	
	$t_array =array_merge( $t_array, array( 
		'priority',
		'project_id',
		'projection',
		'reporter_id',
		'reproducibility',
		'resolution',
		'selection',
		'severity',
		'sponsorship_total',
		'status',
		'steps_to_reproduce',
		'summary',
		'target_version',
		'version',
		'view_state',
	) );	
	return $t_array;
}

/**
 * Get all accessible columns for the current project / current user..
 * @param int $p_project_id project id
 * @return array array of columns
 * @access public
 */
function columns_get_all( $p_project_id = null ) {
	$t_columns = columns_get_standard();

	# Add project custom fields to the array.  Only add the ones for which the current user has at least read access.
	if( $p_project_id === null ) {
		$t_project_id = helper_get_current_project();
	} else {
		$t_project_id = $p_project_id;
	}

	$t_related_custom_field_ids = custom_field_get_linked_ids( $t_project_id );
	foreach( $t_related_custom_field_ids as $t_id ) {
		if( !custom_field_has_read_access_by_project_id( $t_id, $t_project_id ) ) {
			continue;
		}

		$t_def = custom_field_get_definition( $t_id );
		$t_columns[] = 'custom_' . $t_def['name'];
	}

	# foreach

	return $t_columns;
}

/**
 * Checks if the specified column is an extended column.  Extended columns are native columns that are
 * associated with the issue but are saved in mantis_bug_text_table.
 * @param string $p_column The column name
 * @return bool true for extended; false otherwise.
 * @access public
 */
function column_is_extended( $p_column ) {
	switch( $p_column ) {
		case 'description':
		case 'steps_to_reproduce':
		case 'additional_information':
			return true;
		default:
			return false;
	}
}

/**
 * Given a column name from the array of columns to be included in a view, this method checks if
 * the column is a custom column and if so returns its name.  Note that for custom fields, then
 * provided names will have the "custom_" prefix, where the returned ones won't have the prefix.
 *
 * @param string $p_column Column name.
 * @return string The custom field column name or null if the specific column is not a custom field or invalid column.
 * @access public
 */
function column_get_custom_field_name( $p_column ) {
	if( strpos( $p_column, 'custom_' ) === 0 ) {
		return substr( $p_column, 7 );
	}

	return null;
}

/**
 * Converts a string of comma separate column names to an array.
 * @param string $p_string - Comma separate column name (not case sensitive)
 * @return array The array with all column names lower case.
 * @access public
 */
function columns_string_to_array( $p_string ) {
	$t_string = strtolower( $p_string );

	$t_columns = explode( ',', $t_string );
	$t_count = count($t_columns);
	
	for($i = 0; $i < $t_count; $i++) {
		$t_columns[$i] = trim($t_columns[$i]);
	}

	return $t_columns;
}

/**
 * Gets the localized title for the specified column.  The column can be native or custom.
 * The custom fields must contain the 'custom_' prefix.
 * @param string $p_column - The column name.
 * @return string The column localized name.
 * @access public
 */
function column_get_title( $p_column ) {
	$t_custom_field = column_get_custom_field_name( $p_column );
	if( $t_custom_field !== null ) {
		$t_field_id = custom_field_get_id_from_name( $t_custom_field );

		if( $t_field_id === false ) {
			$t_custom_field = '@' . $t_custom_field . '@';
		} else {
			$t_def = custom_field_get_definition( $t_field_id );
			$t_custom_field = lang_get_defaulted( $t_def['name'] );
		}

		return $t_custom_field;
	}

	switch( $p_column ) {
		case 'attachment':
			return lang_get( 'attachments' );
		case 'bugnotes_count':
			return '#';
		case 'category_id':
			return lang_get( 'category' );
		case 'edit':
			return '';
		case 'handler_id':
			return lang_get( 'assigned_to' );
		case 'last_updated':
			return lang_get( 'updated' );
		case 'os_build':
			return lang_get( 'os_version' );
		case 'project_id':
			return lang_get( 'email_project' );
		case 'reporter_id':
			return lang_get( 'reporter' );
		case 'selection':
			return '';
		case 'sponsorship_total':
			return sponsorship_get_currency();
		case 'version':
			return lang_get( 'product_version' );
		case 'view_state':
			return lang_get( 'view_status' );
		default:
			return lang_get_defaulted( $p_column );
	}
}

/**
 * Checks an array of columns for duplicate or invalid fields.
 * @param string $p_field_name - The logic name of the array being validated.  Used when triggering errors.
 * @param array $p_columns_to_validate - The array of columns to validate.
 * @param array $p_columns_all - The list of all valid columns.
 * @return bool
 * @access public 
 */
function columns_ensure_valid( $p_field_name, $p_columns_to_validate, $p_columns_all ) {
	$t_columns_all_lower = array_map( 'strtolower', $p_columns_all );

	# Check for invalid fields
	foreach( $p_columns_to_validate as $t_column ) {
		if( !in_array( strtolower( $t_column ), $t_columns_all_lower ) ) {
			error_parameters( $p_field_name, $t_column );
			trigger_error( ERROR_COLUMNS_INVALID, ERROR );
			return false;
		}
	}

	# Check for duplicate fields
	$t_columns_no_duplicates = array();
	foreach( $p_columns_to_validate as $t_column ) {
		$t_column_lower = strtolower( $t_column );
		if( in_array( $t_column, $t_columns_no_duplicates ) ) {
			error_parameters( $p_field_name, $t_column );
			trigger_error( ERROR_COLUMNS_DUPLICATE, ERROR );
		} else {
			$t_columns_no_duplicates[] = $t_column_lower;
		}
	}

	return true;
}

/**
 * Validates an array of column names and removes ones that are not valid.  The validation
 * is not case sensitive.
 *
 * @param array $p_columns - The array of column names to be validated.
 * @param array $p_columns_all - The array of all valid column names.
 * @return array The array of valid column names found in $p_columns.
 * @access public
 */
function columns_remove_invalid( $p_columns, $p_columns_all ) {
	$t_columns_all_lower = array_values( array_map( 'strtolower', $p_columns_all ) );
	$t_columns = array();

	foreach( $p_columns as $t_column ) {
		if( in_array( strtolower( $t_column ), $t_columns_all_lower ) ) {
			$t_columns[] = $t_column;
		}
	}

	return $t_columns;
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_selection( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td> &nbsp; </td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_edit( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td> &nbsp; </td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_id( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'id' ), 'id', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'id' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_project_id( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'email_project' ), 'project_id', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'project_id' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_reporter_id( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'reporter' ), 'reporter_id', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'reporter_id' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_handler_id( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'assigned_to' ), 'handler_id', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'handler_id' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_priority( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'priority_abbreviation' ), 'priority', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'priority' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null 
 * @access public
 */
function print_column_title_reproducibility( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'reproducibility' ), 'reproducibility', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'reproducibility' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_projection( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'projection' ), 'projection', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'projection' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_eta( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'eta' ), 'eta', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'eta' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_resolution( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'resolution' ), 'resolution', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'resolution' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_fixed_in_version( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'fixed_in_version' ), 'fixed_in_version', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'fixed_in_version' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_target_version( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'target_version' ), 'target_version', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'target_version' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_view_state( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'view_status' ), 'view_state', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'view_state' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_os( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'os' ), 'os', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'os' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_os_build( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'os_version' ), 'os_build', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'os_build' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_build( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	if( $p_columns_target != COLUMNS_TARGET_CSV_PAGE ) {
		echo '<td>';
		print_view_bug_sort_link( lang_get( 'build' ), 'build', $p_sort, $p_dir, $p_columns_target );
		print_sort_icon( $p_dir, $p_sort, 'build' );
		echo '</td>';
	} else {
		echo lang_get( 'build' );
	}
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_platform( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'platform' ), 'platform', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'platform' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_version( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'product_version' ), 'version', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'version' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_date_submitted( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'date_submitted' ), 'date_submitted', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'date_submitted' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_attachment( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	global $t_icon_path;

	$t_show_attachments = config_get( 'show_attachment_indicator' );

	if( ON == $t_show_attachments ) {
		echo "\t<td>";
		echo '<img src="' . $t_icon_path . 'attachment.png' . '" alt="" />';
		echo "</td>\n";
	}
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_category( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'category' ), 'category', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'category' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_sponsorship_total( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo "\t<td>";
	print_view_bug_sort_link( sponsorship_get_currency(), 'sponsorship_total', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'sponsorship_total' );
	echo "</td>\n";
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_severity( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'severity' ), 'severity', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'severity' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_status( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'status' ), 'status', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'status' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_last_updated( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'updated' ), 'last_updated', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'last_updated' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_summary( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_view_bug_sort_link( lang_get( 'summary' ), 'summary', $p_sort, $p_dir, $p_columns_target );
	print_sort_icon( $p_dir, $p_sort, 'summary' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_bugnotes_count( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td> # </td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_description( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	echo lang_get( 'description' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_steps_to_reproduce( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	echo lang_get( 'steps_to_reproduce' );
	echo '</td>';
}

/**
 * 
 * @param string sort
 * @param string direction
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_title_additional_information( $p_sort, $p_dir, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	echo lang_get( 'additional_information' );
	echo '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_selection( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	global $t_checkboxes_exist, $t_update_bug_threshold;

	echo '<td>';
	if( access_has_bug_level( $t_update_bug_threshold, $p_row['id'] ) ) {
		$t_checkboxes_exist = true;
		printf( "<input type=\"checkbox\" name=\"bug_arr[]\" value=\"%d\" />", $p_row['id'] );
	} else {
		echo "&nbsp;";
	}
	echo '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_edit( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	global $t_icon_path, $t_update_bug_threshold;
	$t_is_overdue = bug_is_overdue( $p_row['id'] );
	$t_view_level = access_has_bug_level( config_get( 'due_date_view_threshold' ), $p_row['id'] );

	if( $t_is_overdue && $t_view_level ) {
		print "<td class=\"overdue\">";
	} else {
		echo '<td>';
	}
	if( !bug_is_readonly( $p_row['id'] ) && access_has_bug_level( config_get( 'update_bug_threshold' ), $p_row['id'] ) ) {
		echo '<a href="' . string_get_bug_update_url( $p_row['id'] ) . '">';
		echo '<img border="0" width="16" height="16" src="' . $t_icon_path . 'update.png';
		echo '" alt="' . lang_get( 'update_bug_button' ) . '"';
		echo ' title="' . lang_get( 'update_bug_button' ) . '" /></a>';
	} else {
		echo '&nbsp;';
	}
	if( $t_is_overdue && $t_view_level ) {
		echo '<a href="' . string_get_bug_update_url( $p_row['id'] ) . '">';
		echo '<img border="0" width="16" height="16" src="' . $t_icon_path . 'overdue.png';
		echo '" alt="' . lang_get( 'overdue' ) . '"';
		echo ' title="' . lang_get( 'overdue' ) . '" /></a>';
	}
	elseif( !date_is_null( $p_row['due_date'] ) && $t_view_level ) {
		echo '<a href="' . string_get_bug_update_url( $p_row['id'] ) . '">';
		echo '<img border="0" width="16" height="16" src="' . $t_icon_path . 'clock.png';
		echo '" alt="' . lang_get( 'due_date' ) . '"';
		echo ' title="' . lang_get( 'due_date' ) . '" /></a>';
	} else {
		echo '&nbsp;';
	}

	echo '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_priority( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	if( ON == config_get( 'show_priority_text' ) ) {
		print_formatted_priority_string( $p_row['status'], $p_row['priority'] );
	} else {
		print_status_icon( $p_row['priority'] );
	}
	echo '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_id( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';
	print_bug_link( $p_row['id'], false );
	echo '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_sponsorship_total( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo "\t<td class=\"right\">";

	if( $p_row['sponsorship_total'] > 0 ) {
		$t_sponsorship_amount = sponsorship_format_amount( $p_row['sponsorship_total'] );
		echo string_no_break( $t_sponsorship_amount );
	}

	echo "</td>\n";
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_bugnotes_count( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	global $t_filter;

	# grab the bugnote count
	$t_bugnote_stats = bug_get_bugnote_stats( $p_row['id'] );
	if( NULL !== $t_bugnote_stats ) {
		$bugnote_count = $t_bugnote_stats['count'];
		$v_bugnote_updated = $t_bugnote_stats['last_modified'];
	} else {
		$bugnote_count = 0;
	}

	echo '<td class="center">';
	if( $bugnote_count > 0 ) {
		$t_bugnote_link = '<a href="' . string_get_bug_view_url( $p_row['id'] ) . '&amp;nbn=' . $bugnote_count . '#bugnotes">' . $bugnote_count . '</a>';

		if( $v_bugnote_updated > strtotime( '-' . $t_filter['highlight_changed'] . ' hours' ) ) {
			printf( '<span class="bold">%s</span>', $t_bugnote_link );
		} else {
			echo $t_bugnote_link;
		}
	} else {
		echo '&nbsp;';
	}

	echo '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_attachment( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	global $t_icon_path;

	# Check for attachments
	$t_attachment_count = 0;
	if( file_can_view_bug_attachments( $p_row['id'] ) ) {
		$t_attachment_count = file_bug_attachment_count( $p_row['id'] );
	}

	echo "\t<td>";

	if( 0 < $t_attachment_count ) {
		echo '<a href="' . string_get_bug_view_url( $p_row['id'] ) . '#attachments">';
		echo '<img border="0" src="' . $t_icon_path . 'attachment.png' . '"';
		echo ' alt="' . lang_get( 'attachment_alt' ) . '"';
		echo ' title="' . $t_attachment_count . ' ' . lang_get( 'attachments' ) . '"';
		echo ' />';
		echo '</a>';
	} else {
		echo ' &nbsp; ';
	}

	echo "</td>\n";
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_category_id( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	global $t_sort, $t_dir;

	# grab the project name
	$t_project_name = project_get_field( $p_row['project_id'], 'name' );

	echo '<td class="center">';

	# type project name if viewing 'all projects' or if issue is in a subproject
	if( ON == config_get( 'show_bug_project_links' ) && helper_get_current_project() != $p_row['project_id'] ) {
		echo '<small>[';
		print_view_bug_sort_link( $t_project_name, 'project_id', $t_sort, $t_dir, $p_columns_target );
		echo ']</small><br />';
	}

	echo string_display( category_full_name( $p_row['category_id'], false ) );

	echo '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_severity( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td class="center">';
	print_formatted_severity_string( $p_row['status'], $p_row['severity'] );
	echo '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_eta( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td class="center">', get_enum_element( 'eta', $p_row['eta'] ), '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_resolution( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td class="center">', get_enum_element( 'resolution', $p_row['resolution'] ), '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_status( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td class="center">';
	printf( '<span class="issue-status" title="%s">%s</span>', get_enum_element( 'resolution', $p_row['resolution'] ), get_enum_element( 'status', $p_row['status'] ) );

	# print username instead of status
	if(( ON == config_get( 'show_assigned_names' ) ) && ( $p_row['handler_id'] > 0 ) && ( access_has_project_level( config_get( 'view_handler_threshold' ), $p_row['project_id'] ) ) ) {
		printf( ' (%s)', prepare_user_name( $p_row['handler_id'] ) );
	}
	echo '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_handler_id( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td class="center">';

	# In case of a specific project, if the current user has no access to the field, then it would have been excluded from the
	# list of columns to view.  In case of ALL_PROJECTS, then we need to check the access per row.
	if( $p_row['handler_id'] > 0 && ( helper_get_current_project() != ALL_PROJECTS || access_has_project_level( config_get( 'view_handler_threshold' ), $p_row['project_id'] ) ) ) {
		echo prepare_user_name( $p_row['handler_id'] );
	}

	echo '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_reporter_id( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td class="center">';
	echo prepare_user_name( $p_row['reporter_id'] );
	echo '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_last_updated( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	global $t_filter;

	$t_last_updated = date( config_get( 'short_date_format' ), $p_row['last_updated'] );

	echo '<td class="center">';
	if( $p_row['last_updated'] > strtotime( '-' . $t_filter['highlight_changed'] . ' hours' ) ) {
		printf( '<span class="bold">%s</span>', $t_last_updated );
	} else {
		echo $t_last_updated;
	}
	echo '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_date_submitted( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	$t_date_submitted = date( config_get( 'short_date_format' ), $p_row['date_submitted'] );

	echo '<td class="center">', $t_date_submitted, '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_summary( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	global $t_icon_path;

	if( $p_columns_target == COLUMNS_TARGET_CSV_PAGE ) {
		$t_summary = string_attribute( $p_row['summary'] );
	} else {
		$t_summary = string_display_line_links( $p_row['summary'] );
	}

	echo '<td class="left">', $t_summary;
	if( VS_PRIVATE == $p_row['view_state'] ) {
		printf( ' <img src="%s" alt="(%s)" title="%s" />', $t_icon_path . 'protected.gif', lang_get( 'private' ), lang_get( 'private' ) );
	}
	echo '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_description( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	$t_bug = bug_get( $p_row['id'], true );

	$t_description = string_display_links( $t_bug->description );

	echo '<td class="left">', $t_description, '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_steps_to_reproduce( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	$t_bug = bug_get( $p_row['id'], true );

	$t_steps_to_reproduce = string_display_links( $t_bug->additional_information );

	echo '<td class="left">', $t_steps_to_reproduce, '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_additional_information( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	$t_bug = bug_get( $p_row['id'], true );

	$t_additional_information = string_display_links( $t_bug->additional_information );

	echo '<td class="left">', $t_additional_information, '</td>';
}

/**
 * 
 * @param array $p_row bug row
 * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
 * @return null
 * @access public
 */
function print_column_target_version( $p_row, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
	echo '<td>';

	# In case of a specific project, if the current user has no access to the field, then it would have been excluded from the
	# list of columns to view.  In case of ALL_PROJECTS, then we need to check the access per row.
	if( helper_get_current_project() != ALL_PROJECTS || access_has_project_level( config_get( 'roadmap_view_threshold' ), $p_row['project_id'] ) ) {
		echo $p_row['target_version'];
	}

	echo '</td>';
}