add more helpful error messages. closes #6

src/@report/addGraph.m

@@ -12,7 +12,7 @@ function o = addGraph(o, varargin)
 % SPECIAL REQUIREMENTS
 %   none
 
-% Copyright (C) 2013-2014 Dynare Team
+% Copyright (C) 2013-2015 Dynare Team
 %
 % This file is part of Dynare.
 %
@@ -29,6 +29,10 @@ function o = addGraph(o, varargin)
 % You should have received a copy of the GNU General Public License
 % along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 
+assert(length(o.pages) > 0, ...
+       '@report.addGraph: Before adding a graph, you must add a page and a section.');
+assert(length(o.pages{end}.sections) > 0, ...
+       '@report.addGraph: Before adding a graph, you must add a section.');
 o.pages{end}.sections{end} = ...
     o.pages{end}.sections{end}.addGraph(varargin{:});
 end

src/@report/addParagraph.m

@@ -12,7 +12,7 @@ function o = addParagraph(o, varargin)
 % SPECIAL REQUIREMENTS
 %   none
 
-% Copyright (C) 2013-2014 Dynare Team
+% Copyright (C) 2013-2015 Dynare Team
 %
 % This file is part of Dynare.
 %
@@ -29,6 +29,10 @@ function o = addParagraph(o, varargin)
 % You should have received a copy of the GNU General Public License
 % along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 
+assert(length(o.pages) > 0, ...
+       '@report.addParagraph: Before adding a paragraph, you must add a page and a section.');
+assert(length(o.pages{end}.sections) > 0, ...
+       '@report.addParagraph: Before adding a paragraph, you must add a section.');
 o.pages{end}.sections{end} = ...
     o.pages{end}.sections{end}.addParagraph(varargin{:});
 end

src/@report/addSection.m

@@ -12,7 +12,7 @@ function o = addSection(o, varargin)
 % SPECIAL REQUIREMENTS
 %   none
 
-% Copyright (C) 2013-2014 Dynare Team
+% Copyright (C) 2013-2015 Dynare Team
 %
 % This file is part of Dynare.
 %
@@ -29,5 +29,7 @@ function o = addSection(o, varargin)
 % You should have received a copy of the GNU General Public License
 % along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 
+assert(length(o.pages) > 0, ...
+       '@report.addSection: Before adding a section, you must add a page.');
 o.pages{end} = o.pages{end}.addSection(varargin{:});
 end

src/@report/addSeries.m

@@ -12,7 +12,7 @@ function o = addSeries(o, varargin)
 % SPECIAL REQUIREMENTS
 %   none
 
-% Copyright (C) 2013-2014 Dynare Team
+% Copyright (C) 2013-2015 Dynare Team
 %
 % This file is part of Dynare.
 %
@@ -29,6 +29,15 @@ function o = addSeries(o, varargin)
 % You should have received a copy of the GNU General Public License
 % along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 
+assert(length(o.pages) > 0, ...
+       ['@report.addSeries: Before adding a series, you must add a page, ' ...
+        'section, and either a graph or a table.']);
+assert(length(o.pages{end}.sections) > 0, ...
+       ['@report.addSeries: Before adding a series, you must add a section and ' ...
+        'either a graph or a table']);
+assert(length(o.pages{end}.sections.elements) > 0, ...
+       ['@report.addSeries: Before adding a series, you must add ' ...
+        'either a graph or a table']);
 assert(isa(o.pages{end}.sections{end}.elements{end}, 'graph') || ...
        isa(o.pages{end}.sections{end}.elements{end}, 'report_table'), ...
        '@report.addSeries: you can only add a series to a report_table or graph object');

src/@report/addTable.m

@@ -12,7 +12,7 @@ function o = addTable(o, varargin)
 % SPECIAL REQUIREMENTS
 %   none
 
-% Copyright (C) 2013-2014 Dynare Team
+% Copyright (C) 2013-2015 Dynare Team
 %
 % This file is part of Dynare.
 %
@@ -29,6 +29,10 @@ function o = addTable(o, varargin)
 % You should have received a copy of the GNU General Public License
 % along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 
+assert(length(o.pages) > 0, ...
+       '@report.addTable: Before adding a table, you must add a page and a section.');
+assert(length(o.pages{end}.sections) > 0, ...
+       '@report.addTable: Before adding a table, you must add a section.');
 o.pages{end}.sections{end} = ...
     o.pages{end}.sections{end}.addTable(varargin{:});
 end

src/@report/addVspace.m

@@ -12,7 +12,7 @@ function o = addVspace(o, varargin)
 % SPECIAL REQUIREMENTS
 %   none
 
-% Copyright (C) 2013-2014 Dynare Team
+% Copyright (C) 2013-2015 Dynare Team
 %
 % This file is part of Dynare.
 %
@@ -29,6 +29,10 @@ function o = addVspace(o, varargin)
 % You should have received a copy of the GNU General Public License
 % along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 
+assert(length(o.pages) > 0, ...
+       '@report.addVspace: Before adding a vspace, you must add a page and a section.');
+assert(length(o.pages{end}.sections) > 0, ...
+       '@report.addVspace: Before adding a vspace, you must add a section.');
 o.pages{end}.sections{end} = ...
     o.pages{end}.sections{end}.addVspace(varargin{:});
 end