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fields.js
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fields.js
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/*jslint node: true */
'use strict';
var forms = require('./forms'),
tag = require('./tag'),
is = require('is'),
async = require('async'),
validators = require('./validators'),
coerceArray = function (arr) {
return Array.isArray(arr) && arr.length > 0 ? arr : [];
},
copy = function (original) {
return Object.keys(original).reduce(function (copy, key) {
copy[key] = original[key];
return copy;
}, {});
},
nameSeparatorRegExp = /[_-]/g;
exports.string = function (opt) {
if (!opt) { opt = {}; }
var f = copy(opt);
f.widget = f.widget || forms.widgets.text(opt.attrs || {});
f.parse = function (raw_data) {
if (typeof raw_data !== 'undefined' && raw_data !== null) {
return String(raw_data);
}
return '';
};
f.bind = function (raw_data) {
var b = copy(f); // clone field object:
b.value = raw_data;
b.data = b.parse(raw_data);
b.validate = function (form, callback) {
var forceValidation = (b.validators || []).some(function (validator) {
return validator.forceValidation;
});
if (!forceValidation && (raw_data === '' || raw_data === null || typeof raw_data === 'undefined')) {
// don't validate empty fields, but check if required
if (b.required) {
var validator = is.fn(b.required) ? b.required : validators.required();
validator(form, b, function (v_err) {
b.error = v_err ? String(v_err) : null;
callback(v_err, b);
});
} else {
process.nextTick(function () { callback(null, b); });
}
} else {
async.forEachSeries(b.validators || [], function (v, callback) {
if (!b.error) {
v(form, b, function (v_err) {
b.error = v_err ? String(v_err) : null;
callback(null);
});
} else {
callback(null);
}
}, function (err) {
callback(err, b);
});
}
};
return b;
};
f.errorHTML = function () {
var classes = typeof this.cssClasses !== 'undefined' ? coerceArray(this.cssClasses.error) : [];
return this.error ? tag('p', { classes: ['error_msg'].concat(classes) }, this.error) : '';
};
f.labelText = function (name) {
var text = this.label;
if (!text && name) {
text = name.charAt(0).toUpperCase() + name.slice(1).replace(nameSeparatorRegExp, ' ').replace(/([a-z])([A-Z])/g, function (match, firstLetter, secondLetter) {
return firstLetter + ' ' + secondLetter.toLowerCase();
});
}
return text || '';
};
f.labelHTML = function (name, id) {
if (this.widget.type === 'hidden') { return ''; }
var forID = id === false ? false : (id || 'id_' + name);
return forms.widgets.label({
classes: typeof this.cssClasses !== 'undefined' ? coerceArray(this.cssClasses.label) : [],
content: this.labelText(name, id)
}).toHTML(forID, f);
};
f.classes = function () {
var r = ['field'];
if (this.error) { r.push('error'); }
if (this.required) { r.push('required'); }
if (typeof this.cssClasses !== 'undefined') {
r = r.concat(coerceArray(this.cssClasses.field));
}
return r;
};
f.toHTML = function (name, iterator) {
return (iterator || forms.render.div)(name || this.name, this, opt);
};
return f;
};
exports.number = function (opt) {
if (!opt) { opt = {}; }
var f = exports.string(opt);
f.parse = function (raw_data) {
if (raw_data === null || raw_data === '') {
return NaN;
}
return Number(raw_data);
};
return f;
};
exports.boolean = function (opt) {
if (!opt) { opt = {}; }
var f = exports.string(opt);
f.widget = opt.widget || forms.widgets.checkbox(opt.attrs || {});
f.parse = function (raw_data) {
return !!raw_data;
};
return f;
};
exports.email = function (opt) {
var opts = opt ? copy(opt) : {};
if (!opts.widget) { opts.widget = forms.widgets.email(opts.attrs || {}); }
var f = exports.string(opts);
if (f.validators) {
f.validators.unshift(forms.validators.email());
} else {
f.validators = [forms.validators.email()];
}
return f;
};
exports.tel = function (opt) {
var opts = opt ? copy(opt) : {};
if (!opts.widget) { opts.widget = forms.widgets.tel(opts.attrs || {}); }
return exports.string(opts);
};
exports.password = function (opt) {
if (!opt) { opt = {}; }
var f = exports.string(opt);
f.widget = opt.widget || forms.widgets.password(opt.attrs || {});
return f;
};
exports.url = function (opt) {
if (!opt) { opt = {}; }
var f = exports.string(opt);
if (f.validators) {
f.validators.unshift(forms.validators.url());
} else {
f.validators = [forms.validators.url()];
}
return f;
};
exports.array = function (opt) {
if (!opt) { opt = {}; }
var f = exports.string(opt);
f.parse = function (raw_data) {
if (typeof raw_data === 'undefined') { return []; }
return Array.isArray(raw_data) ? raw_data : [raw_data];
};
return f;
};
exports.date = function (opt) {
if (!opt) { opt = {}; }
var f = exports.string(opt);
if (f.validators) {
f.validators.unshift(forms.validators.date());
} else {
f.validators = [forms.validators.date()];
}
return f;
};
exports.object = function (fields, opts) {
return forms.create(fields || {});
};