lib/assets/javascripts/cartodb/models/table.js
/**
* models for cartodb admin
*/
(function() {
cdb.admin.SQL = function() {
var username = (this.options && this.options.user_data)? this.options.user_data.username :
(window.user_data? window.user_data.username : window.user_name);
var api_key = (this.options && this.options.user_data)? this.options.user_data.api_key :
(window.user_data? window.user_data.api_key : window.api_key);
return new cartodb.SQL({
user: username,
api_key: api_key,
sql_api_template: cdb.config.getSqlApiBaseUrl()
});
}
cdb.admin.Column = cdb.core.Model.extend({
idAttribute: 'name',
url: function(method) {
var version = cdb.config.urlVersion('column', method);
var table = this.table || this.collection.table;
if(!table) {
cdb.log.error("column has no table assigned");
}
var base = '/api/' + version + '/tables/' + table.get('name') + '/columns/';
if (this.isNew()) {
return base;
}
return base + this.id;
},
initialize: function() {
this.table = this.get('table');
if(!this.table) {
throw "you should specify a table model";
}
this.unset('table', { silent: true });
},
toJSON: function() {
var c = _.clone(this.attributes);
// this hack is created to create new column
// if you set _name instead name backbone does not get
// it as idAttribute so launch a POST instead of a PUT
if(c._name) {
c.name = c._name;
delete c._name;
}
return c;
},
});
/**
* contains information about the table, not the data itself
*/
cdb.admin.CartoDBTableMetadata = cdb.ui.common.TableProperties.extend({
currentLoading: 0, // class variable (shared). I'm still not sure if this is messy as hell or powerfull as a transformer
sqlApiClass: cartodb.SQL,
_TEXTS: {
columnDeleted: 'Your column has been deleted',
columnDeleting: 'Deleting your column',
columnAdded: 'Your column has been added',
columnAdding: 'Adding new column'
},
hiddenColumns: [
'the_geom',
'the_geom_webmercator',
'cartodb_georef_status',
'created_at',
'updated_at',
'cartodb_id'
],
initialize: function() {
_.bindAll(this, 'notice');
this.readOnly = false;
this.bind('change:schema', this._prepareSchema, this);
this._prepareSchema();
this.sqlView = null;
this.synchronization = new cdb.admin.TableSynchronization();
this.synchronization.linkToTable(this);
this.synchronization.bind('change:id', function isSyncChanged() {
this.trigger('change:isSync', this, this.synchronization.isSync());
}, this);
if (this.get('no_data_fetch')) {
this.no_data_fetch = true;
delete this.attributes.no_data_fetch;
}
this.data();
this.bind('error', function(e, resp) {
this.error('', resp);
}, this);
this._data.bind('error', function(e, resp) {
this.notice('error loading rows, check your SQL query', 'error', 5000);
}, this);
this._data.bind('reset', function() {
var view = this._data;
this.set({
schema: view.schemaFromData(this.get('schema')),
geometry_types: view.getGeometryTypes()
});
}, this);
this.retrigger('change', this._data, 'data:changed');
this.retrigger('saved', this._data, 'data:saved');
this.bind('change:table_visualization', function() {
this.permission = new cdb.admin.Permission(this.get('table_visualization').permission);
this.trigger('change:permission', this, this.permission);
}, this);
// create permission if permission is set
this.permission = new cdb.admin.Permission(this.get('permission'));
},
url: function(method) {
var version = cdb.config.urlVersion('table', method);
var base = '/api/' + version + '/tables';
if (this.isNew()) {
return base;
}
return base + '/' + this.id;
},
// use the name as the id since the api works
// in the same way to table name and id
parse: function(resp, xhr) {
if(resp.name) {
resp.id = resp.name;
}
// move geometry_types to stats one
// geometry_types from backend are not reliable anymore and it can only be used
// for non editing stuff (showing icons, general checks on table list)
resp.stats_geometry_types = resp.geometry_types;
delete resp.geometry_types;
delete resp.schema;
return resp;
},
notice: function(msg, type, timeout) {
this.trigger('notice', msg, type, timeout);
},
setReadOnly: function(_) {
var trigger = false;
if (this.readOnly !== _) {
trigger = true;
}
this.readOnly = _;
if (trigger) {
this.trigger('change:readOnly', this, _);
}
},
isReadOnly: function() {
return this.readOnly || this.data().isReadOnly() || this.synchronization.isSync();
},
isSync: function() {
return this.synchronization.isSync();
},
getUnqualifiedName: function() {
var name = this.get('name');
if (!name) return null;
var tk = name.split('.');
if (tk.length == 2) {
return tk[1];
}
return name;
},
// "user".table -> user.table
getUnquotedName: function() {
var name = this.get('name');
return name && name.replace(/"/g, '');
},
sortSchema: function() {
this.set('schema', cdb.admin.CartoDBTableMetadata.sortSchema(this.get('schema')));
},
error: function(msg, resp) {
var err = resp && resp.responseText && JSON.parse(resp.responseText).errors[0];
this.trigger('notice', msg + ": " + err, 'error');
},
_prepareSchema: function() {
var self = this;
this._columnType = {};
_(this.get('schema')).each(function(s) {
self._columnType[s[0]] = s[1];
});
if (!this.isInSQLView()) {
self.set('original_schema', self.get('schema'));
}
},
columnNames: function(sc) {
sc = sc || 'schema'
return _(this.get(sc)).pluck(0);
},
containsColumn: function(name) {
return _.contains(this.columnNames(), name);
},
columnNamesByType: function(type, sc) {
sc = sc || 'schema';
var t = _(this.get(sc)).filter(function(c) {
return c[1] == type;
});
return _(t).pluck(0);
},
// return geometry columns calculated backend stats
// use geomColumnTypes if you need something reliable (but slower and async)
statsGeomColumnTypes: function(geometryTypes) {
return this.geomColumnTypes(this.get('stats_geometry_types'))
},
// return the current column types in an array
// the values inside the array can be:
// 'point', 'line', 'polygon'
geomColumnTypes: function(geometryTypes) {
var types = geometryTypes || this.get('geometry_types');
var geomTypes = [];
if (!_.isArray(types)) {
return [];
}
var _map = {
'st_multipolygon': 'polygon',
'st_polygon': 'polygon',
'st_multilinestring': 'line',
'st_linestring': 'line',
'st_multipoint': 'point',
'st_point': 'point'
};
for(var t in types) {
var type = types[t];
// when there are rows with no geo type null is returned as geotype
if(type) {
var a = _map[type.toLowerCase()]
if(a) {
geomTypes.push(a)
}
}
}
return _.uniq(geomTypes);
},
/**
* Adding a new geometry type to the table
* @param geom type {st_polygon, st_point,...}
* @param set options
*/
addGeomColumnType: function(t, opts) {
if(!t) return;
var types = _.clone(this.get('geometry_types')) || [];
if(!_.contains(types, t)) {
types.push(t);
this.set({
'geometry_types': types
}, opts);
}
},
nonReservedColumnNames: function() {
var self = this;
return _.filter(this.columnNames(), function(c) {
return !self.isReservedColumn(c);
});
},
columnTypes: function() {
return _.clone(this._columnType);
},
_getColumn: function(columnName) {
if(this._columnType[columnName] === undefined) {
return
// throw "the column does not exists";
}
var c = new cdb.admin.Column({
table: this,
name: columnName,
type: this._columnType[columnName]
});
return c;
},
getColumnType: function(columnName, sc) {
sc = sc || 'schema';
var t = _(this.get(sc)).filter(function(c) {
return c[0] == columnName;
});
if(t.length > 0)
return t[0][1];
return;
},
addColumn: function(columnName, columnType, opts) {
var self = this;
var c = new cdb.admin.Column({
table: this,
_name: columnName,
type: columnType || 'string'
});
this.notice(self._TEXTS.columnAdding, 'load', 0);
c.save(null, {
success: function(mdl, obj) {
self.notice(self._TEXTS.columnAdded, 'info');
self.trigger('columnAdd', columnName);
self.data().fetch();
opts && opts.success && opts.success(mdl,obj);
},
error: function(e, resp) {
self.error('error adding column', resp);
opts && opts.error && opts.error(e);
},
wait: true
});
},
deleteColumn: function(columnName, opts) {
var self = this;
var c = this._getColumn(columnName);
if (c !== undefined) {
this.notice(self._TEXTS.columnDeleting, 'load', 0);
c.destroy({
success: function() {
self.trigger('columnDelete', columnName);
self.notice(self._TEXTS.columnDeleted, 'info');
self.data().fetch();
opts && opts.success && opts.success();
},
error: function(e, resp) {
self.error('error deleting column', resp);
opts && opts.error && opts.error();
},
wait: true
});
}
},
renameColumn: function(columnName, newName, opts) {
if(columnName == newName) return;
var self = this;
var c = this._getColumn(columnName);
var oldName = c.get('name');
c.set({
new_name: newName,
old_name: c.get('name')
});
this.notice('renaming column', 'load', 0);
c.save(null, {
success: function(mdl, data) {
self.notice('Column has been renamed', 'info');
self.trigger('columnRename', newName, oldName);
self.data().fetch();
opts && opts.success && opts.success(mdl, data);
},
error: function(e, resp) {
cdb.log.error("can't rename column");
self.error('error renaming column', resp);
opts && opts.error && opts.error(e, resp);
},
wait: true
});
},
isTypeChangeAllowed: function(columnName, newType) {
var deactivateMatrix = {
'number': ['date'],
'boolean': ['date'],
'date': ['boolean']
};
var c = this._getColumn(columnName);
if (!c) {
return true;
}
var type = c.get('type');
var deactivated = deactivateMatrix[type] || [];
deactivated = deactivated.concat([type])
return !_.contains(deactivated, newType);
},
isTypeChangeDestructive: function(columnName, newType) {
var columnType = this.getColumnType(columnName);
var destructiveMatrix = {
"string": {
"string": false,
"number": true,
"date": true,
"boolean": true,
},
"number": {
"string": false,
"number": false,
"date": true,
"boolean": true,
},
"date": {
"string": false,
"number": true,
"date": false,
"boolean": true,
},
"boolean": {
"string": false,
"number": false,
"date": true,
"boolean": false,
},
}
return destructiveMatrix[columnType][newType]
},
changeColumnType: function(columnName, newType, opts) {
var self = this;
var c = this._getColumn(columnName);
if(this.getColumnType(columnName) == newType) {
opts && opts.success && opts.success();
return;
}
this.saveNewColumnType(c, newType, opts);
},
saveNewColumnType: function(column, newType, opts) {
var self = this;
column.set({ type: newType});
this.notice('Changing column type', 'load', 0);
column.save(null, {
success: function() {
self.notice('Column type has been changed', 'info');
self.trigger('typeChanged', newType); // to make it testable
self.data().fetch();
opts && opts.success && opts.success();
},
error: function(e, resp) {
self.trigger('typeChangeFailed', newType, e); // to make it testable
self.error('error changing column type', resp);
opts && opts.error && opts.error(e, resp);
},
wait: true
});
},
/**
* returns the original data for the table not the current applied view
*/
originalData: function() {
return this._data;
},
data: function() {
var self = this;
if(this._data === undefined) {
this._data = new cdb.admin.CartoDBTableData(null, {
table: this
});
this.bindData();
}
if(this.sqlView) {
return this.sqlView;
}
return this._data;
},
bindData: function(data) {
var self = this;
if(this._data && !this._data.bindedReset) {
this.retrigger('reset', this._data, 'dataLoaded');
this.retrigger('add', this._data, 'dataAdded');
this._data.bindedReset = true;
}
if(this.sqlView && !this.sqlView.bindedReset) {
this.retrigger('reset', this.sqlView, 'dataLoaded');
this.retrigger('add', this.sqlView, 'dataAdded');
this.sqlView.bindedReset = true;
}
},
useSQLView: function(view, options) {
if (!view && !this.sqlView) return;
options = options || {};
var self = this;
var data = this.data();
if(this.sqlView) {
this.sqlView.unbind(null, null, this);
this.sqlView.unbind(null, null, this._data);
}
// reset previous
if(!view && this.sqlView) {
this.sqlView.table = null;
}
this.sqlView = view;
this.bindData();
if(view) {
view.bind('reset', function() {
if(!view.modify_rows) {
this.set({
schema: view.schemaFromData(this.get('schema')),
geometry_types: view.getGeometryTypes()
});
}
}, this);
// listen for errors
view.bind('error', function(e, resp) {
this.notice('error loading rows, check your SQL query', 'error', 5000);
}, this);
view.bind('loading', function() {
//this.notice(_t('loading query'), 'load', 0);
}, this);
view.bind('reset loaded', function() {
if(view.modify_rows) {
this.notice(view.affected_rows + ' rows affected');
this.useSQLView(null);
} else {
this.notice(_t('loaded'));
}
}, this);
// swicth source data
this.dataModel = this.sqlView;
view.table = this;
} else {
this.dataModel = this._data;
// get the original schema
self.set({
'schema': self.get('original_schema')
});///*, { silent: true });
self.data().fetch();
}
this.trigger('change:dataSource', this.dataModel, this);
},
isInSQLView: function() {
return this.sqlView ? true: false;
},
/**
* replace fetch functionally to add some extra call for logging
* it can be used in the same way fetch is
*/
fetch: function(opts) {
var self = this;
silent = opts? opts.silent : false;
if(!silent) {
this.notice('loading table', 'load', this, 0, 0);
}
var xhr = this.elder('fetch', opts)
$.when(xhr).done(function() {
opts && opts.success && opts.success.old_success && opts.success.old_success();
if(!silent) {
self.notice('loaded');
}
}).fail(function(){
if(!silent) {
self.notice('error loading the table');
}
});
return xhr;
},
isReservedColumn: function(c) {
return cdb.admin.Row.isReservedColumn(c);
},
/**
* when a table is linked to a infowindow each time a column
* is renamed or removed the table pings to infowindow to remove
* or rename the fields
*/
linkToInfowindow: function(infowindow) {
var self = this;
this.bind('columnRename', function(newName, oldName) {
if(infowindow.containsField(oldName)) {
infowindow.removeField(oldName);
infowindow.addField(newName);
}
}, infowindow);
this.bind('columnDelete', function(oldName, newName) {
infowindow.removeField(oldName);
}, infowindow);
this.bind('change:schema', function() {
var self = this;
var columns = _(this.columnNames()).filter(function(c) {
return !_.contains(infowindow.SYSTEM_COLUMNS, c);
});
function _hash(str){
var hash = 0, c;
for (i = 0; i < str.length; i++) {
c = str.charCodeAt(i);
hash = c + (hash << 6) + (hash << 16) - hash;
}
return hash;
}
if (this.isInSQLView()) {
if (!infowindow.has('defaul_schema_fields')) {
infowindow.saveFields('defaul_schema_fields');
}
var current_schema_key = 'schema_' + _hash(self.columnNames().sort().join(''));
var previous_schema_key = 'schema_' + _hash(
_(self.previous('schema')).pluck(0).sort().join('')
);
if(!infowindow.has(previous_schema_key)) {
infowindow.saveFields(previous_schema_key);
}
if(infowindow.has(current_schema_key)) {
infowindow.restoreFields(null, current_schema_key);
}
} else {
infowindow.restoreFields(null, 'defaul_schema_fields');
}
if (infowindow.get('template')) {
// merge fields checking actual schema
infowindow.mergeFields(columns);
} else {
// remove fields that no longer exist
infowindow.removeMissingFields(columns);
}
}, this);
},
embedURL: function() {
return "/tables/" + this.get('name') + "/embed_map"
},
/**
* @deprecated use vis.viewUrl() or vis.viewUrl(currentUser) instead.
*/
viewUrl: function() {
return cdb.config.prefixUrl() + "/tables/" + this.getUnqualifiedName()
},
hasTheGeom: function() {
var currentSchema = this.get('schema');
// if we have "the_geom" in our current schema, returnstrue
for(var n in currentSchema) {
if(currentSchema[n][0] === 'the_geom') {
return true;
}
}
return false;
},
/**
* Checks the server to see if the table has any georeferenced row, independently of the applyed query
* @return {promise}
*/
fetchGeoreferenceStatus: function() {
var dfd = $.Deferred();
var username = (this.options && this.options.user_data)? this.options.user_data.username :
(window.user_data? window.user_data.username : window.user_name);
var api_key = (this.options && this.options.user_data)? this.options.user_data.api_key :
(window.user_data? window.user_data.api_key : window.api_key);
this.sqlApi = new this.sqlApiClass({
user: username,
version: 'v1',
api_key: api_key,
sql_api_template: cdb.config.getSqlApiBaseUrl()
});
var sql = 'SELECT the_geom FROM ' + this.get('name') + ' WHERE the_geom is not null';
this.sqlApi.execute(sql).done(function(data){
if(data.rows.length > 0) {
dfd.resolve(true);
} else {
dfd.resolve(false);
}
});
return dfd.promise();
},
/**
* Checks the current loaded records to see if they are georeferenced
* @return {boolean}
*/
isGeoreferenced: function() {
var geoColumns = this.geomColumnTypes();
if(geoColumns && geoColumns.length > 0) {
return true;
} else {
if (!this.isInSQLView()) {
// sometimes the columns are changed in the frontend site
// and the geocolumns are not updated.
// check the columns in local
return this._data.any(function(row) {
return row.hasGeometry();
});
}
}
return false;
},
/**
* this function can only be called during change event
* returns true if the geometry type has changed
* for this method multipolygon and polygon are the same geometry type
*/
geometryTypeChanged: function() {
if (!('geometry_types' in this.changed)) return false;
var geoTypes = this.get('geometry_types')
var prevGeoTypes = this.previousAttributes().geometry_types;
function normalize(e) {
e = e.toLowerCase();
if (e === 'st_multipolygon') {
return 'st_polygon'
}
if (e === 'st_multilinestring') {
return 'st_linestring'
}
if (e === 'st_multipoint') {
return 'st_point'
}
return e;
}
if(!geoTypes ||
geoTypes.length === 0 ||
!prevGeoTypes ||
prevGeoTypes.length === 0) {
return true;
}
var n = normalize(geoTypes[0]);
var o = normalize(prevGeoTypes[0]);
return n !== o;
},
/**
* Get necessary data create a duplicated dataset from this table.
*
* @param {Object} newName name of new dataset.
* @param {Object} callbacks
* @returns {Object}
*/
duplicate: function(newName, callbacks) {
callbacks = callbacks || {};
// Extracted from duplicate_table_dialog
var data = {
table_name: newName
};
// Set correct data object, depending on if the app has a query applied or not
if (this.isInSQLView()) {
var query = this.data().getSQL();
data.sql = ( !query || query == "" ) ? 'SELECT * FROM ' + cdb.Utils.safeTableNameQuoting(this.get('name')) : query;
} else {
data.table_copy = this.get('name');
}
var importModel = new cdb.admin.Import();
importModel.save(data, {
error: callbacks.error,
success: function(model, changes) {
var checkImportModel = new cdb.admin.Import({
item_queue_id: changes.item_queue_id
});
checkImportModel.bind('importComplete', function() {
checkImportModel.unbind();
// So import is done, create new table object from the new table and fetch, callback once finished.
var newTable = new cdb.admin.CartoDBTableMetadata({
id: checkImportModel.get('table_id')
});
newTable.fetch({
success: function() {
callbacks.success(newTable);
},
error: callbacks.error
});
});
checkImportModel.bind('importError', function() {
checkImportModel.unbind();
callbacks.error.apply(this, arguments);
});
checkImportModel.pollCheck();
}
});
},
/**
* Get the visualizations that are using this table dataset.
* Note! a .fetch() is required to be sure the data to be available.
* @return {Array}
*/
dependentVisualizations: function() {
// dependent = visualizations with a single layer
// non-dependant = have more than this dataset as a layer
return _.chain(this.get('dependent_visualizations'))
.union(this.get('non_dependent_visualizations'))
.compact()
.value() || [];
}
}, {
/**
* creates a new table from query
* the called is responsable of calling save to create
* the table in the server
*/
createFromQuery: function(name, query) {
return new cdb.admin.CartoDBTableMetadata({
sql: query,
name: name
});
},
sortSchema: function(schema) {
var priorities = {
'cartodb_id': 1,
'the_geom': 2,
'__default__': 3,
'created_at': 4,
'updated_at': 5
};
function priority(v) {
return priorities[v] || priorities['__default__'];
}
return _.chain(schema)
.clone()
.sort(function(a, b) { // ..and then re-sort by priorities defined above
var prioA = priority(a[0]);
var prioB = priority(b[0]);
if (prioA < prioB) {
return -1;
} else if (prioA > prioB) {
return 1;
} else { //priority is the same (i.e. __default__), so compare alphabetically
return a[0] < b[0] ? -1 : 1;
}
})
.value();
},
/**
* return true if the sql query alters table schema in some way
*/
alterTable: function(sql) {
sql = sql.trim();
return sql.search(/alter\s+[\w\."]+\s+/i) !== -1 ||
sql.search(/drop\s+[\w\.\"]+/i) !== -1 ||
sql.search(/^vacuum\s+[\w\.\"]+/i) !== -1 ||
sql.search(/^create\s+[\w\.\"]+/i) !== -1 ||
sql.search(/^reindex\s+[\w\.\"]+/i) !== -1 ||
sql.search(/^grant\s+[\w\.\"]+/i) !== -1 ||
sql.search(/^revoke\s+[\w\.\"]+/i) !== -1 ||
sql.search(/^cluster\s+[\w\.\"]+/i) !== -1 ||
sql.search(/^comment\s+on\s+[\w\.\"]+/i) !== -1 ||
sql.search(/^explain\s+[\w\.\"]+/i) !== -1;
},
/**
* return true if the sql query alters table data
*/
alterTableData: function(sql) {
return this.alterTable(sql) ||
sql.search(/^refresh\s+materialized\s+view\s+[\w\.\"]+/i) !== -1 ||
sql.search(/^truncate\s+[\w\.\"]+/i) !== -1 ||
sql.search(/insert\s+into/i) !== -1 ||
sql.search(/update\s+[\w\.\-"]+\s+.*set/i) !== -1 ||
sql.search(/delete\s+from/i) !== -1;
}
});
cdb.admin.Row = cdb.core.Model.extend({
_CREATED_EVENT: 'created',
_CREATED_EVENT: 'creating',
sqlApiClass: cartodb.SQL,
_GEOMETRY_TYPES: {
'point': 'st_point',
'multipoint': 'st_multipoint',
'linestring': 'st_linestring',
'multilinestring': 'st_multilinestring',
'polygon': 'st_polygon',
'multipolygon': 'st_multipolygon'
},
url: function(method) {
var version = cdb.config.urlVersion('record', method);
var table = this.table || this.collection.table;
if(!table) {
cdb.log.error("row has no table assigned");
}
var base = '/api/' + version + '/tables/' + table.get('name') + '/records/';
if (this.isNew()) {
return base;
}
return base + this.id;
},
fetch: function(opts) {
opts = opts || {}
var self = this;
var silent = opts && opts.silent;
var username = (this.options && this.options.user_data)? this.options.user_data.username :
(window.user_data? window.user_data.username : window.user_name);
var api_key = (this.options && this.options.user_data)? this.options.user_data.api_key :
(window.user_data? window.user_data.api_key : window.api_key);
var table = this.table || this.collection.table;
var sqlApi = new this.sqlApiClass({
user: username,
version: 'v2',
api_key: api_key,
sql_api_template: cdb.config.getSqlApiBaseUrl(),
extra_params: ['skipfields']
});
// this.trigger('loading')
var sql = null;
var columns = table.columnNames()
if (opts.no_geom) {
columns = _.without(columns, 'the_geom', 'the_geom_webmercator');
} else {
columns = _.without(columns, 'the_geom');
}
sql = 'SELECT ' + columns.join(',') + " "
if(table.containsColumn('the_geom') && !opts.no_geom) {
sql += ',ST_AsGeoJSON(the_geom, 8) as the_geom '
}
sql += ' from (' + table.data().getSQL() + ') _table_sql WHERE cartodb_id = ' + this.get('cartodb_id');
// Added opts to sql execute function to apply
// parameters ( like cache ) to the ajax request
if (opts.no_geom) {
opts.skipfields = 'the_geom,the_geom_webmercator';
} else {
opts.skipfields = 'the_geom_webmercator';
}
sqlApi.execute(sql, {}, opts).done(function(data){
if(self.parse(data.rows[0])) {
self.set(data.rows[0]);//, {silent: silent});
self.trigger('sync');
}
});
},
toJSON: function() {
var attr = _.clone(this.attributes);
// remove read-only attributes
delete attr['updated_at'];
delete attr['created_at'];
delete attr['the_geom_webmercator'];
if(!this.isGeometryGeoJSON()) {
delete attr['the_geom'];
}
return attr;
},
isGeomLoaded: function() {
var geojson = this.get('the_geom');
var column_types_WKT = cdb.admin.WKT.types
return (geojson !== 'GeoJSON' && geojson !== -1 && !_.contains(column_types_WKT, geojson));
},
hasGeometry: function() {
var the_geom = this.get('the_geom');
return !!(the_geom != null && the_geom != undefined && the_geom != '')
// in fact, if the_geom has anything but null or '', the row is georeferenced
// if(typeof the_geom === 'string') {
// // if the geom contains GeoJSON, the row has a valid geometry, but is not loaded yet
// if(the_geom === 'GeoJSON') {
// return true
// }
// try {
// var g = JSON.parse(the_geom);
// return !!g.coordinates;
// } catch(e) {
// return false;
// }
// } else {
// if(the_geom) {
// return !!the_geom.coordinates;
// }
// return false;
// }
},
/**
* Checks if the_geom contains a valid geoJson
*/
isGeometryGeoJSON: function() {
var the_geom = this.get('the_geom');
if(the_geom && typeof the_geom === 'object') {
return !!the_geom.coordinates;
} else if(typeof the_geom !== 'string') {
return false;
}
// if the geom contains GeoJSON, the row has a valid geometry, but is not loaded yet
if(the_geom === 'GeoJSON') {
return true
}
try {
var g = JSON.parse(the_geom);
return !!g.coordinates;
} catch(e) {
return false;
}
return false;
},
getFeatureType: function() {
if (this.isGeomLoaded()) {
// Problem geometry type from a WKB format
// Not possible for the moment
try {
var geojson = JSON.parse(this.get('the_geom'));
return geojson.type.toLowerCase();
} catch(e) {
cdb.log.info("Not possible to parse geometry type");
}
}
return null;
},
getGeomType: function() {
try {
return this._GEOMETRY_TYPES[this.getFeatureType()];
} catch(e) {
cdb.log.info("Not possible to parse geometry type");
}
}
}, {
RESERVED_COLUMNS: 'the_geom the_geom_webmercator cartodb_id created_at updated_at'.split(' '),
isReservedColumn: function(c) {
return _(cdb.admin.Row.RESERVED_COLUMNS).indexOf(c) !== -1;
}
});
})();