<%doc>

Example:

  include( 'elements/edit.html',  
    'name'  =>
    'table' =>
    #? 'primary_key' => #required when the dbdef doesn't know...???
    'labels' => {
                  'column' => 'Label',
                }
   
    listref - each item is a literal column name (or method) or hashref
                                                             or (notyet) coderef
    if not specified all columns (except for the primary key) will be editable
    'fields' => [
                  'columname',
                  { 'field' => 'another_columname',
                    'type'  => 'text', #text
                                       #money
                                       #checkbox
                                       #select
                                       #selectlayers
                                       #title
                                       #hidden - hidden value from object
                                       #fixed - display fixed value from here
                                       #fixedhidden - hidden value from here
                    'value' => 'Y', #for checkbox, title, fixed, fixedhidden
                    'disabled' => 0,
                    'onchange' => 'javascript_function',
                    'm2name_table'   => 'table_name',   #only tested w/
                                                        # selectlayers so far
                                                        # might work w/select
                                                        # dunno others
                    'm2name_namecol' => 'name_column',  # 
                    'm2name_label'   => 'Label',        #
                    'm2name_new_default' => \@table_name_objects, #default
                                                                  #m2name
                                                                  #objects for
                                                                  #new records
                    'm2name_error_callback' => sub { my($cgi, $object) = @_; },
                    'm2name_remove_warnings' => \%warnings, #hashref of warning
                                                            #messages for
                                                            #m2name removal
                    'm2name_new_js' => 'function_name', #javascript function
                                                        #called on spawned rows
                                                        #(one arg: new_element)
                    'm2name_remove_js' => 'function_name', #js function called
                                                           #when a row is
                                                           #deleted
                                                           #(three args:
                                                           # value, text,
                                                           #  'no_match')
                    #layer_fields & layer_values_callback only for selectlayer
                    'layer_fields' => [
                                        'fieldname'     => 'Label',
                                        'another_field' => {
                                          label=>'Label',
                                          type =>'text', #text, money
                                        },
                                      ],
                    'layer_values_callback' =>
                      sub {
                            my( $cgi, $object ) = @_;
                            { 'layer'  => { 'fieldname'  => 'current_value',
                                            'fieldname2' => 'field2value',
                                            ...
                                          },
                              'layer2' => { 'l2fieldname' => 'l2value',
                                            ...
                                          },
                              ...
                            };
                          },
                  },
                ]
   
    'menubar'     => '', #menubar arrayref

    #agent virtualization
    'agent_virt'       => 1,
    'agent_null_right' => 'Access Right Name',
   
    #run when re-displaying with an error
    'error_callback' => sub { my( $cgi, $object, $fields_listref ) = @_; },
   
    #run when editing
    'edit_callback' => sub { my( $cgi, $object, $fields_listref ) = @_; },
   
    # returns a hashref for the new object
    'new_hashref_callback'
   
    #run when adding
    'new_callback' => sub { my( $cgi, $object, $fields_listref ) = @_; },
   
    #XXX describe
    'field_callback' => sub { },
   
    #string or coderef of additional HTML to add before </TABLE>
    'html_table_bottom' => '',
   
    'viewall_dir' => '', #'search' or 'browse', defaults to 'search'
   
    'html_bottom' => '', #string
    'html_bottom' => sub {
                           my $object = shift;
                           # ...
                           "html_string";
                         },
   
    # overrides default popurl(1)."process/$table.html"
    'post_url' => popurl(1).'process/something', 
  );

</%doc>

<% include("/elements/header.html", $title,
              include( '/elements/menubar.html', @menubar )
           )
%>

% if ( $cgi->param('error') ) { 
  <FONT SIZE="+1" COLOR="#ff0000">Error: <% $cgi->param('error') %></FONT>
  <BR><BR>
% } 

% my $url = $opt{'post_url'} || popurl(1)."process/$table.html";

<FORM ACTION="<% $url %>" METHOD=POST NAME="edit_topform">

<INPUT TYPE="hidden" NAME="svcdb" VALUE="<% $table %>">
<INPUT TYPE="hidden" NAME="<% $pkey %>" VALUE="<% $object->$pkey() %>">

<% ( $opt{labels} && exists $opt{labels}->{$pkey} )
      ? $opt{labels}->{$pkey}
      : $pkey
%>
#<% $object->$pkey() || "(NEW)" %>

%# <% ntable("#cccccc",0) %>
<TABLE ID="OneTrueTable" BGCOLOR="#cccccc" BORDER=0 CELLSPACING=0>

% my $g_row = 0;
% foreach my $f ( map { ref($_) ? $_ : {'field'=>$_} }
%                       @$fields
%                 ) {
%
%   &{ $opt{'field_callback'} }( $f )
%     if $opt{'field_callback'};
%
%   my $field = $f->{'field'};
%   my $type = $f->{'type'} ||= 'text';
%
%   my $label = ( $opt{labels} && exists $opt{labels}->{$field} )
%                   ? $opt{labels}->{$field}
%                   : $field;
%
%   my $onchange = $f->{'onchange'};
%
%   my $layer_values = {};
%   if ( $f->{'layer_values_callback'} && ! $f->{'m2name_table'} ) {
%     $layer_values = &{ $f->{'layer_values_callback'} }( $cgi, $object );
%   }
%   warn "layer values: ". Dumper($layer_values)
%     if $opt{'debug'};
%
%   my %include_common = (
%     #checkbox, title
%     #& deprecated weird value hashref used only by reason.html
%     'value'         => $f->{'value'},
%
%     #select(-*)
%     'options'       => $f->{'options'},
%     'labels'        => $f->{'labels'},
%     'multiple'      => $f->{'multiple'},
%     'disable_empty' => $f->{'disable_empty'},
%     #select-reason
%     'reason_class'  => $f->{'reason_class'},
%
%     #selectlayers
%     'layer_fields'  => $f->{'layer_fields'},
%     'layer_values'  => $layer_values,
%     'html_between'  => $f->{'html_between'},
%   );
%
%   my $layer_prefix_on = '';
%
%   my $include_sub = sub {
%     my %opt = @_;
%
%     my $fieldnum   = delete $opt{'fieldnum'};
%
%     my $include = $type;
%     $include = "input-$include" if $include =~ /^(text|money)$/;
%     $include = "tr-$include" unless $include eq 'hidden';
%
%     $include_common{'layer_prefix'} = "$field$fieldnum."
%       if $layer_prefix_on;
%
%     my @include = 
%     ( "/elements/$include.html",
%         'field'      => "$field$fieldnum",
%         'id'         => "$field$fieldnum", #separate?
%         'label_id'   => $field."_label$fieldnum", #don't want field0_label0...
%         %include_common,
%         %opt,
%     );
%     @include;
%   };
%
%   $g_row++;
%   $g_row++ if $type eq 'title';
%
%   my $fieldnum = '';
%   my $curr_value = '';
%   if ( $f->{'m2name_table'} ) { #XXX test this for all types of fields
%     my $table = $f->{'m2name_table'};
%     my $col   = $f->{'m2name_namecol'};
%     $fieldnum = 0;
%     $layer_prefix_on = 1;
%     #print out the fields for the existing m2names
%     my @existing = ();
%     if ( $mode eq 'error' ) {
%       @existing = &{ $f->{'m2name_error_callback'} }( $cgi, $object );
%     } elsif ( $object->$pkey() ) { # $mode eq 'edit'
%       @existing = $object->$table();
%     } elsif ( $f->{'m2name_new_default'} ) { # && $mode eq 'new'
%       @existing = @{ $f->{'m2name_new_default'} };
%     }
%     foreach my $name_obj ( @existing ) {
%
%       my $ex_label = '<INPUT TYPE="button" VALUE="X" TITLE="Remove this '.
%                      lc($f->{'m2name_label'}).
%                      qq(" onClick="remove_$field($fieldnum);").
%                      ' STYLE="color:#ff0000;font-weight:bold;'.
%                              'padding-left:2px;padding-right:2px"'.
%                      '>&nbsp;'. ($f->{'m2name_label'} || $field ). ' ';
%       
%       if ( $f->{'layer_values_callback'} ) {
%         my %switches = ( 'mode' => $mode );
%         $layer_values =
%           &{ $f->{'layer_values_callback'} }( $cgi, $name_obj, \%switches );
%       }
%       warn "layer values: ". Dumper($layer_values)
%         if $opt{'debug'};
%
%       my @existing = &{ $include_sub }(
%         'label'        => $ex_label,
%         'fieldnum'     => $fieldnum,
%         'curr_value'   => $name_obj->$col(),
%         'onchange'     => $onchange,
%         'layer_values' => $layer_values,
%         'cell_style'   => ( $fieldnum ? 'border-top:1px solid black' : '' ),
%       );

        <% include( @existing ) %>

%       $fieldnum++;
%       $g_row++;
%     }
%     #$field .= $fieldnum;
%     $onchange .= "\nspawn_$field(what);";
%   } else {
%     $curr_value = $object->$field();
%   }
%
%   my @include = &{ $include_sub }(
%     'label'      => $label,
%     'fieldnum'   => $fieldnum,
%     'curr_value' => $curr_value,
%     'onchange'   => $onchange,
%     'cell_style'   => ( $fieldnum ? 'border-top:1px solid black' : '' ),
%   );

    <% include( @include ) %>

%   if ( $f->{'m2name_table'} ) {

      <SCRIPT TYPE="text/javascript">

        var rownum = <% $g_row %>;
        var fieldnum = <% $fieldnum %>;

        function spawn_<%$field%>(what) {

          // only spawn if we're the last element... return if not

          var field_regex = /(\d+)$/;
          var match = field_regex.exec(what.name);
          if ( !match ) {
            alert(what.name + " didn't match?!");
            return;
          }
          if ( match[1] != fieldnum ) {
            return;
          }

          // change the label on the last entry & add a remove button
          var prev_label = document.getElementById('<% $field %>_label' + fieldnum );
          prev_label.innerHTML = '<INPUT TYPE="button" VALUE="X" TITLE="Remove this <% lc($f->{'m2name_label'}) %>" onClick="remove_<% $field %>(' + fieldnum + ');" STYLE="color:#ff0000;font-weight:bold;padding-left:2px;padding-right:2px" >&nbsp;<% $f->{'m2name_label'} || $field %>';

          fieldnum++;

          //get the new widget

%         $include[0] =~ s(^/elements/tr-)(/elements/);
%         my @layer_opt = ( @include,
%                           'field'        => $field."MAGIC_NUMBER",
%                           'layer_prefix' => $field."MAGIC_NUMBER.",
%                         );

          var newrow =  <% include(@layer_opt, html_only=>1) |js_string %>;

%         if ( $type eq 'selectlayers' ) { #until the rest have html/js_only
            var newfunc = <% include(@layer_opt, js_only  =>1) |js_string %>;
%         } else {
            var newfunc = '';
%         }

          // substitute in the new field name
          var magic_regex = /MAGIC_NUMBER/g;
          newrow  = newrow.replace(  magic_regex, fieldnum );
          newfunc = newfunc.replace( magic_regex, fieldnum );

          // evaluate new_func
          if (window.ActiveXObject) {
            window.execScript(newfunc);
          } else { /* (window.XMLHttpRequest) */
            //window.eval(newfunc);
            setTimeout(newfunc, 0);
          }

          // add new row

          var table = document.getElementById('OneTrueTable');

          var row = table.insertRow(rownum++);

          var label_cell = document.createElement('TD');

          label_cell.id = '<% $field %>_label' + fieldnum;

          label_cell.style.textAlign = "right";
          label_cell.style.verticalAlign = "top";
          label_cell.style.borderTop = "1px solid black";
          label_cell.style.paddingTop = "5px";

          label_cell.innerHTML = '<% $label %>';

          row.appendChild(label_cell);
          
          var widget_cell = document.createElement('TD');

          widget_cell.style.borderTop = "1px solid black";
          widget_cell.style.paddingTop = "3px";

          widget_cell.innerHTML = newrow;

          row.appendChild(widget_cell);

%         if ( $f->{'m2name_new_js'} ) {
            // take out items selected in previous dropdowns
            var new_element = document.getElementById("<%$field%>" + fieldnum );
            <% $f->{'m2name_new_js'} %>(new_element);

            if ( new_element.length < 2 ) {
              //just the ** Select new **, so don't display the row
              row.style.display = 'none';
            }
%         }

        }

        function remove_<%$field%>(remove_fieldnum) {
          //alert("remove <%$field%> " + remove_fieldnum);
          var select = document.getElementById('<%$field%>' + remove_fieldnum);

%         my $warnings = $f->{'m2name_remove_warnings'};
%         if ( $warnings ) {
            var sel_value = select.options[select.selectedIndex].value;
%           foreach my $value ( keys %$warnings ) {
              if ( sel_value == '<% $value %>' ) {
                if ( ! confirm( <% $warnings->{$value} |js_string %> ) ) {
                  return;
                }
              }
%           }
%         }

          select.disabled = 'disabled'; // this seems to prevent it from being submitted on tested browsers so far (IE, moz, konq at least)
          var label_td = document.getElementById('<%$field%>_label' + remove_fieldnum );
          label_td.parentNode.style.display = 'none';

%         if ( $f->{m2name_remove_js} ) {
            var opt = select.options[select.selectedIndex];
            <% $f->{m2name_remove_js} %>( opt.value, opt.text, 'no_match');
%         }

        }

      </SCRIPT>

%   }

% } 

<% ref( $opt{'html_table_bottom'} )
      ? &{ $opt{'html_table_bottom'} }( $object )
      : $opt{'html_table_bottom'}
%>

</TABLE>

<% ref( $opt{'html_bottom'} )
      ? &{ $opt{'html_bottom'} }( $object )
      : $opt{'html_bottom'}
%>

<BR>

<INPUT TYPE="submit" ID="submit" VALUE="<% $object->$pkey() ? "Apply changes" : "Add $opt{'name'}" %>">

</FORM>

<% include("/elements/footer.html") %>
<%init>

my(%opt) = @_;

my $curuser = $FS::CurrentUser::CurrentUser;

#false laziness w/process.html
my $table = $opt{'table'};
my $class = "FS::$table";
my $pkey = dbdef->table($table)->primary_key; #? $opt{'primary_key'} || 
my $fields = $opt{'fields'}
             #|| [ grep { $_ ne $pkey } dbdef->table($table)->columns ];
             || [ grep { $_ ne $pkey } fields($table) ];
#my @actualfields = map { ref($_) ? $_->{'field'} : $_ } @$fields;

if ( $cgi->param('redirect') ) {
  my $session = $cgi->param('redirect');
  my $pref = $curuser->option("redirect$session");
  die "unknown redirect session $session\n" unless length($pref);
  $cgi = new CGI($pref);
}

my $object;
my $mode;
if ( $cgi->param('error') ) {

  $mode = 'error';


  $object = $class->new( {
    map { $_ => scalar($cgi->param($_)) } fields($table)
  });

  &{$opt{'error_callback'}}($cgi, $object, $fields)
    if $opt{'error_callback'};

} elsif ( $cgi->keywords || $cgi->param($pkey) ) { #editing

  $mode = 'edit';

  my $value;
  if ( $cgi->param($pkey) ) {
    $value = $cgi->param($pkey)
  } else { 
    my( $query ) = $cgi->keywords;
    $value = $query;
  }
  $value =~ /^(\d+)$/ or die "unparsable $pkey";
  $object = qsearchs({
    'table'     => $table,
    'hashref'   => { $pkey => $1 },
    'extra_sql' => ( $opt{'agent_virt'}
                       ? ' AND '. $curuser->agentnums_sql(
                                    'null_right' => $opt{'agent_null_right'}
                                  )
                       : ''
                   ),
  });
  warn "$table $pkey => $1"
    if $opt{'debug'};

  &{$opt{'edit_callback'}}($cgi, $object, $fields)
    if $opt{'edit_callback'};

} else { #adding

  $mode = 'new';

  my $hashref = $opt{'new_hashref_callback'}
                  ? &{$opt{'new_hashref_callback'}}
                  : {};

  $object = $class->new( $hashref );

  &{$opt{'new_callback'}}($cgi, $object, $fields)
    if $opt{'new_callback'};

}

my $action = $object->$pkey() ? 'Edit' : 'Add';

my $title = "$action $opt{'name'}";

my $viewall_url = $p . ( $opt{'viewall_dir'} || 'search' ) . "/$table.html";
$viewall_url = $opt{'viewall_url'} if $opt{'viewall_url'};  

my @menubar = ();
if ( $opt{'menubar'} ) {
  @menubar = @{ $opt{'menubar'} };
} else {
  @menubar = (
    #eventually use Lingua::bs to pluralize
    "View all $opt{'name'}s" => $viewall_url,
  );
}

</%init>