Source

Webware / MiddleKit / WebBrowser / SelectDatabase.py

from MiscUtils.DataTable import DataTable
from MiscUtils.Funcs import hostName as HostName
from SitePage import SitePage


class SelectDatabase(SitePage):

    def writeSideBar(self):
        self.writeln('<a href="?showHelp=1" class="SideBarLink">Help</a>')

    def writeContent(self):
        self.saveFieldsToCookies()
        self.writeDBForm(action='BrowseClasses')
        self.writeRecentDatabases()
        self.writeKnownDatabases()
        if self.request().hasField('showHelp'):
            self.writeHelp()

    def writeDBForm(self, method='get', action=''):
        if method:
            method = 'method="%s"' % method
        if action:
            action = 'action="%s"' % action
        source = '''\
name,type,comment,value
database,text,"e.g., MySQL"
host,text
user,text
password,password
'''
        fields = DataTable()
        fields.readString(source)
        req = self.request()
        wr = self.writeln

        self.writeHeading('Enter database connection info:')
        wr('<form %(method)s %(action)s>' % locals())
        wr('<table border="0" cellpadding="2" cellspacing="0">')
        for field in fields:
            field['value'] = req.value(field['name'], '')
            wr('<tr><td>%(name)s:</td><td></td><td>'
                '<input type="%(type)s" name="%(name)s" value="%(value)s">'
                '</td><td>%(comment)s</td></tr>' % field)
        wr('<tr><td colspan="2">&nbsp;</td><td align="right">'
            '<input type="submit" value="OK"></td><td>&nbsp;</td></tr>')
        wr('</table></form>')

    def writeRecentDatabases(self):
        self.writeHeading('Select a recent database:')
        self.writeln('<p>None</p>')

    def writeKnownDatabases(self):
        self.writeHeading('Select a known database:')
        knownDBs = self.setting('KnownDatabases')
        hostName = HostName()
        if not hostName:
            hostName = '_default_'
        dbs = knownDBs.get(hostName, []) + knownDBs.get('_all_', [])
        if dbs:
            for db in dbs:
                self.writeDB(db)
        else:
            self.writeln('<p>None</p>')

    def writeDB(self, db):
        # Set title
        title = '%(database)s on %(host)s' % db
        if db.get('user', ''):
            title += ' with ' + db['user']

        # Build up args for links
        args = []
        for key in self.dbKeys():
            if key in db:
                args.append('%s=%s' % (key, db[key]))
        args = '&'.join(args)

        # If the db connection info specifies a password, then
        # the user can click through immediately.
        # Otherwise, the click goes back to the same page with
        # the fields filled out so that the user can enter the password.
        if db.get('password'):
            self.write('<p><a href="BrowseClasses?%s">%s</a>'
                ' (password included)' % (args, title))
        else:
            self.writeln('<p><a href="?%s">%s</a>'
                ' (password required)' % (args, title))

    def dbKeys(self):
        """Get keys for database connections.

        Returns a list of the valid keys that can be used for a
        "database connection dictionary". These dictionaries are
        found in the config file and in the recent list.

        """
        return ['database', 'host', 'user', 'password']
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