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|
define_type(
'csv',
-prototype,
-description='A basic type for reading, writing, and serving CSV files.'
);
local(
'fields' = array,
'rows' = array,
'loadpath' = string,
'titlerow' = false,
'savepath' = string,
'filename' = 'results.csv'
);
define_tag(
'onCreate',
-optional='filename',
-type='string',
-optional='loadpath',
-type='string',
-optional='titlerow',
-type='boolean',
-optional='savepath',
-type='string',
-optional='fields',
-type='array',
-optional='rows',
-type='array'
);
if(local_defined('fields'));
self->fields = #fields;
else(field_names->size);
self->fields = field_names;
/if;
if(local_defined('rows'));
self->rows = #rows;
else(rows_array->size);
self->rows = rows_array;
/if;
local_defined('filename') ? self->filename = #filename;
local_defined('savepath') ? self->savepath = #savepath;
local_defined('titlerow') ? self->titlerow = #titlerow;
local_defined('loadpath') ? self->load(
-loadpath=#loadpath,
-titlerow=self->titlerow
);
/define_tag;
define_tag(
'parseline',
-required='line'
);
local(
'field' = string,
'i' = null,
'row' = array
);
iterate(
string_findregexp(
#line,
-find = '"(?:[^"]|"")*"|[^,]*|,'
),
#i
);
if(#i == ',');
#row->insertlast(#field);
#field = '';
else(#i->beginswith('"') && #i->endswith('"'));
#field += #i->substring(2, #i->size - 2)->replace('""', '"')&;
else;
#field += #i;
/if;
/iterate;
#row->insertlast(#field);
return(#row);
/define_tag;
define_tag(
'load',
-required='loadpath',
-type='string',
-optional='titlerow',
-type='boolean'
);
fail_if(
(!file_exists(#loadpath) || !file_read(#loadpath)),
file_currenterror( -errorcode),
file_currenterror
);
self->loadpath = #loadpath;
local_defined('titlerow') ? self->titlerow = #titlerow;
local('in') = file_read(#loadpath);
iterate(#in->split('\r\n'), local('line'));
self->titlerow && loop_count == 1
? self->fields = self->parseline(#line)
| self->rows->insert(self->parseline(#line));
/iterate;
/define_tag;
define_tag('output');
local('out' = string);
if(self->titlerow && self->fields->size);
iterate(self->fields, local('f'));
#out += '"' + #f + '"';
loop_count == self->fields->size ? #out += '\r\n' | #out += ',';
/iterate;
/if;
iterate(self->rows, local('r'));
iterate(#r, local('f'));
#f = string(#f);
#f->replace('"','""')&replace('\r\n','\n')&replace('\r','\n');
#out += '"' + #f + '"';
loop_count == #r->size ? #out += '\r\n' | #out += ',';
/iterate;
/iterate;
#out->removetrailing('\r\n');
return(@#out);
/define_tag;
define_tag(
'save',
-optional='savepath'
);
local_defined('savepath') ? self->savepath = #savepath;
file_create(
self->savepath,
-fileoverwrite
);
file_write(
self->savepath,
self->output,
-fileoverwrite
);
/define_tag;
define_tag(
'serve',
-optional='filename'
);
local_defined('filename') ? self->filename = #filename;
file_serve(
self->output,
-file=self->filename,
-type='text/csv'
);
/define_tag;
define_tag(
'addrow',
-required='data',
-type='array'
);
self->rows->insert(#data);
/define_tag;
/define_type;
|
This crashes...
Hi! If I export 1-10 lines of my records (each record having 30 fields) it works. Anything more and Lasso crashes (I get an internal server error). I think this is a memory problem. How can I increase the available memory to csv/Lasso? Thanks, P. Schmitz (pschmitz A T hostnet.ch)