122 lines
4.3 KiB
Perl
122 lines
4.3 KiB
Perl
# Selima Website Content Management System
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# LinkCat.pm: The related-link category form checker.
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# Copyright (c) 2004-2018 imacat.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Author: imacat <imacat@mail.imacat.idv.tw>
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# First written: 2004-10-24
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package Selima::Checker::LinkCat;
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use 5.008;
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use strict;
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use warnings;
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use base qw(Selima::Checker);
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use Selima::CallForm;
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use Selima::ChkFunc;
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use Selima::DataVars qw($DBH :forms);
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use Selima::ShortCut;
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# new: Initialize the checker
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sub new : method {
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local ($_, %_);
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my ($class, $self);
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($class, @_) = @_;
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$_[1] = "linkcat" if scalar(@_) < 2 || !defined $_[1];
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$self = $class->SUPER::new(@_);
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${$self->{"maxlens"}}{"ord"} = 2;
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${$self->{"minlens"}}{"id"} = 2;
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return $self;
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}
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# _check_id: Check the ID.
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sub _check_id : method {
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local ($_, %_);
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my ($self, $form, $error, $sth, $sql);
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$self = $_[0];
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$form = $self->{"form"};
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# Run the default ID. checker
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$error = $self->SUPER::_check_id;
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return $error if defined $error;
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# ID. cannot be "index" to avoid overriding index.html
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return {"msg"=>N_("\"index\" is dedicated to the index file index.html. You cannot set the ID. as \"index\".")}
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if $form->param("id") eq "index";
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# Check if this item is duplicated
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if (!$self->_missing("topmost", "parent")) {
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@_ = qw();
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push @_, "id=" . $DBH->quote($form->param("id"));
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push @_, "sn!=" . $self->{"sn"} if $self->{"iscur"};
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if ($form->param("topmost") eq "true") {
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push @_, "parent IS NULL";
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} else {
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push @_, "parent=" . $DBH->quote($form->param("parent"));
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}
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$sql = "SELECT * FROM " . $DBH->quote_identifier($self->{"table"})
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. " WHERE " . join(" AND ", @_) . ";\n";
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$sth = $DBH->prepare($sql);
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$sth->execute;
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return {"msg"=>N_("This category already exists. You cannot create a duplicated one.")}
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if $sth->rows > 0;
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}
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# OK
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return;
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}
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# _check_parent: Check the parent category
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sub _check_parent : method {
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local ($_, %_);
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my ($self, $form, $error, $sth, $sql);
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$self = $_[0];
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$form = $self->{"form"};
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# "topmost not set" has a different form context
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return {"msg"=>N_("Please select a parent category.")}
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if $self->_missing("topmost");
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# Regularize it
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$self->_trim("topmost");
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# Check the option value
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return {"msg"=>N_("This option is invalid. Please select a proper parent category.")}
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unless $form->param("topmost") =~ /^(?:true|false)$/;
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# Check the parent category if not a topmost category
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if ($form->param("topmost") eq "false") {
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# Check if it exists
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$error = $self->_missing("parent");
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return $error if defined $error;
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# Regularize it
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$self->_trim("parent");
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# Check if it is filled
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return {"msg"=>N_("Please select a parent category.")}
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if $form->param("parent") eq "";
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# Check if this category exists
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return {"msg"=>N_("This parent category does not exist anymore. Please select another one.")}
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if !check_sn_in ${$form->param_fetch("parent")}[0], "linkcat";
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if ($self->{"iscur"}) {
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# Check if the parent category is itself
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return {"msg"=>N_("A category cannot belong to itself. Please select another one.")}
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if $form->param("parent") == $self->{"sn"};
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# Check if the parent directory is its descendant
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$sql = "SELECT linkcat_ischild(" . $self->{"sn"} . ", "
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. $form->param("parent") . ") AS is_child;\n";
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$sth = $DBH->prepare($sql);
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$sth->execute;
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return {"msg"=>N_("A category cannot belong to its descendant. Please select another one.")}
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if ${$sth->fetchrow_hashref}{"is_child"};
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}
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}
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# OK
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return;
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}
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return 1;
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